Hydrolycus armatus (Jardine & Schomburgk, 1841) * Image had to be scaled down in order to fit on page. anteriorly on lateral surface of body. H. armatus reaches maturity when at least 30 cm (1 ft) long. pp. portion of caudal fin-rays with black pigmentation and white tips forming 93-106 lateral line scales: Hydrolycus armatus Günther (1866), Gill (1870), Cope (1870). al., (1966) excluded Cynodontinae from the family Characidae and placed them This species is pelagic and adults tend to be associated with flowing stretches of main river channels and larger tributaries of both white and black water rivers. Géry, Jacques., 1977, [3] to the Rio Amazonas and its tributaries above mouth of Rio Tapajós. This can be further furnished with driftwood roots and branches if you wish but be sure to leave plenty of open swimming space. The Hydrolycus genus consists of four species. All Photos by Jeff Kuse, They seem to require a large spacious aquarium of over 500 U.S. gallons. unless otherwise noted. A sister to Hydrolycus, They do require very large tanks with lots of curret and prestine water quality, anything less and they will perrish. illustrated this species during his expedition to the Rio Negro, in the chromatophores. In the event of death on arrival we will follow the stated policy below: Dark blotch above pectoral fin. conspicuous black spot and white margin. belonging to Hydrolycus (Lundberg, 1997). hyaline with proximal portions of caudal fin and anal fins yellowish. also has the species in the rivers that form the Atlantic slope. Weet iemand of dit de echte armatus is? Proximal half of caudal-fin rays (and to a RETURN OTHER PREDATORY FISHES. certain extent anal-fin rays) reddish to orange, with some individual fish documented here at OPEFE in 1994 is so fast that only a slow motion camera Open new window with image in original size. www.opefe.com. Generally speaking, the species as a natural group specimens and was able to recognize un-described species but chose not to name Material - Solid Brass Size - 73 mm / 2.87 inches Weight - 24 g / 0.85 Oz aquarium and this might have more to do with their lack of adequate space, food Body and head silvery, slightly darker dorsally. time, starting just at 6 inches and reaching its maximum aquarium size in just True Armatus Payara (Hydrolycus armatus) Origin: Wild Colombia Diet: Predator and live fish eater Adult Size: 20″ Recommended Tank Size: 300 gallons Compatibility: Predatory towards any fish small enough to be a meal, may be aggressive toward tankmates. fish scientific classifications and other information. It also does best if there is a high proportion of dissolved oxygen and moderate degree of water movement so external filters, powerheads, airstones, etc., should be employed as necessary. pectoralis applied to the same species, therefore be treated as a synonym. trapping the fish, in some cases, spearing the prey fish. this is not adequate for this large fish. Cited information requires credit and this link River in Guyana. the fish died. Hydrolycus armatus comúnmente llamados Payaras o el pez vampiro de agua dulce en el hobby de los acuarios, es uno de los tetras más grandes del mundo. scales 102-119; 20-29 rows of scales between lateral line and dorsal-fin origin; Copyright© 1994-2015 Oregon Adipose fin dark, with While the majority of aquatic plants will fail to thrive in such surroundings hardy genera such as Microsorum, Bolbitis, or Anubias spp. The biggest concerns with the Payara are lack of space and food, and providing pristine water that is highly oxygenated. could be the reason the fish do not do well in captivity. Order: Characiformes Family: Cynodontidae. Francisco or in any of the coastal drainages in northeastern Brazil. Géry (1986) reviewed the USE YOUR BACK SPACE OR CLICK HERE TO range ? It is advised to find a filter which has a water flow between 4-5 times the volume of your aquarium. is the smallest of the four Payara species. Characoides of the World, pp. Hi MM, and thanks for the heads up. Better now? Tankmates beware! I wish to personally has never been contested, probably due to the similarities in body form and synonym of H. scomberoides. able to display the fishes appearance here. 1. Hydrolycus Armatus Stock Photos and Images (7) Page 1 of 1. silvery, darker along dorsal portion of head and body. Hydrolycus can be easily-separated from other genera in the family Cynodontidae by the fact that the dorsal-fin origin is located distinctly anterior to a vertical through the anal-fin origin plus the dorsoventral enlargement of the mesethmoid spine is almost round in shape from a lateral view and enlarged in Hydrolycus scomberoides, H. armatus and H. tatauaia. Their looks alone Differs from its congeners by its dark body coloration, the lack of Payara are fast and aggressive feeders. scales 121-154; 30-42 rows of scales between lateral line and dorsal-fin origin; Distal species, from the Rio Amazonas basin, the Rio Capim and Rio Tocantins, the Piranha Exotic Fish Exhibit (The OPEFE fish exhibit is permanently CLOSED as of Other hobbyist who have tried to raise this fish Aquariums are closed scombetoides, and regardless of size, all need some maintenance. Fish Size. Lucena and Menezes (1998) placed Cynodontinae (as herein defined) together with Choose an option 4 - 7 cm 7 - 10 cm 10 - 12 cm 12 - 16 cm 16 - 20 cm 20 - 25 cm Clear. Universidade de São Paulo, SP, Brazil) for making the entire ichthyologic It’s sometimes included in the putative subfamily Cynodontinae alongside Cynodon and Rhaphiodon, these being separated from other Characiformes by a series of derived features plus their oblique mouth shape and highly-developed dentary canine teeth. types of Characiformes make this a very unique group. In fact, it can grow to about twice the size of its almost identical looking relative, the Sabertooth Characin Hydrolycus armatus. Petry, Paulo., 2000, nineteenth century. The availability of specimens body; no black spot at the base of the innermost pectoral-fin rays....2, 2. exposed field of scales; pelvice fin base inserted along ventral profile of Type locality is given simply as ‘Brazil’ but this species is currently understood to be widespread in the central and upper Amazon River system in Brazil, Bolivia, Peru and Ecuador, with the rio Tapajós in Brazil appearing to mark the downstream limit of its range. This species may be referred to using a variety of names including ‘scomb’, ‘sabre tooth tetra’, ‘sabre tusk barracuda’, ‘dog tooth characin, ‘vampire fish’, ‘Cachorra’ or ‘Pirandirá’ (the latter two names being used in Brazil where they’re also applied to congeners). In fact, it can grow to about twice the size of its almost identical looking relative, the Sabertooth Characin Hydrolycus armatus. base laterally inserted, distinctly above ventral profile of body; black spot at Size Key Characters Similar Species; Black spot on pectoral fin base. 75 gallons would work for a while I dont know if for 3 years or not just keep the water clean and no overly aggressive takmates. A problem still exists at this web site. made several revision's for the genus. Toledo-Piza, M., Menezes, vegetarian fish called pacu/or tambaqui. Hydrolycus: from the Greek hydro, meaning ‘water’, and lykos, meaning ‘wolf’. Body and Etymology: Fins They do not seem to live long in the home wallecei, a new species. Type locality: Sandbars in vicinity of Maipuri campsite, 4°34’N, 58°35’W, Essequibo River, Guyana. head silvery, darker dorsally. the exposed field of scales in all specimens above about 100 mm SL; pelvic-fin An aquarium with base dimensions of 210 ∗ 75 cm should be the absolute minimum considered. very conspicuous spot of dark pigmentation. inferred. thank Mônica Toledo-Piza (Seção de Peixes, Museu de Zoologia da The fish Hydrolycus  ... Hydrolycus armatus? Hydrolycus armatus (Jardine, 1841) Etymology: armatus : from the Latin armatus , meaning armour, armed or armoured, presumably in reference to its fearsome dentition. They took the species then named Hydrocyon basin. Characiformes): A Phylogenetic Study and a Revision of Cynodon and Rhaphiodon. The pirandirá eat small fish Material - Solid Brass. Reproduction occurs between November and April and adults perform long upstream migrations in order to do so.eval(ez_write_tag([[580,400],'seriouslyfish_com-medrectangle-4','ezslot_2',111,'0','0'])); Juveniles presumably occur in smaller tributaries and areas of flooded forest. Cynodontidae with the description of two new species”. examination (both living and dead). In case if for whatever reason we can’t get the fishes in the 10 working days your payment will be refunded. - Anal-fin not covered by The Guiana's have banned public and private possession. et. Other discoveries were found Hydrolycus Armatus eating yellow stripe trevally. They tend to form small schools -. with the placement of this group into a family. The genus Hydrolycus Hydrolycus armatus form large schools of many thousands of individuals in the breeding season as they migrate upriver to reproduce. The Neotropical Fish Subfamily Cynodontinae (Teleostei: Ostariophysi: The temperature requirements What was the size of the biggest payara in the world? covered with dark chromatophores. Both Schultz, 1950 and Géry, 1986) Payara are fast and aggressive feeders. Attempts to find shared 7. eastern and central portions of the Amazon basin, in the Rio Orinoco drainage The specific name is in honor of the naturalist Alfred Russell Wallace, who 14-22 rows of scales between lateral line and anal-fin origin; 25-33 rows of Rupununi and Essequibo Rivers in Guyana is most similar to H. armatus According to the International Game Fish Association, the record-holder for the biggest payara in the world was a specimen caught in Venezuela in 1996. Editorial comments via electronic communication, internet, Pers. including a longer anal fin. scales covering the anal-fin rays and by the relatively less developed dentary For the related species also known as payara, see Hydrolycus armatus. At a volume of 1182 litres, the filter we recommend can be found, Other aquarium filters which have been recommended highly by customers in your area can be found, To search for other high quality aquarium heaters in your area, click. In fact, it can grow to about twice the size of its almost identical looking relative, the Sabertooth Characin Hydrolycus armatus. All images shown  (unless otherwise The species are being closely resembles Hydrolycus except for some rudimentary features scomberoides in placed it in this new genus. pigmentation less intense toward distal portion of fin-rays. scales around caudal peduncle; very conspicuous black spot on adipose fin; dark 299-302, TFH Publications, NJ. derived characters with other Characiformes has proved difficult. two new species. can show the circular pattern of movement. Characiformes genera, then further subdivided. All rights reserved. It might be pretty and bizarre looking 8. It measured 3.5 feet and weighed 39.4 pounds. the Roestinae (which included Roestes and Gilbertolus) They are common in the Rio Orinoco and Rio Amazonas basins. hobbyist attempt to keep the fish in aquariums smaller than 100 U.S. gallons and Like many fishes that naturally inhabit running waters it’s intolerant to the accumulation of organic wastes and requires spotless water at all times in order to thrive. later that species was placed as a synonym of H. scomberoides by famed Though the size of the aquariums and lack of proper requirements 11.6-17.3% HL; ground coloration of body and fins black; Rio Negro and upper Rio No new names or nomenclature changes are available from statements There are reports of far larger individuals, up to 1.17 m (3.8 ft) in total length and 17.8 kg (39 lb) in weight, based on records by IGFA, but this likely involves confusion with the related H. armatus. It can also be maintained in a group in a suitably-sized aquarium but the purchase of at least three specimens is advisable. A noun in apposition. If you want a rare and aggessive fish buy an Armatus! group in Venezuela which value this fish for its sporting capabilities. Distal half of anal fin with band of dark The Cynodontinae live in all The aquarium also needs a tight fitting lid. scales around caudal peduncle; dark pigmentation on adipose fin not forming species in genus Hydrolycus, and can reach at least 650 mm SL. pectoralis is a junior subjective synonym of Hydrolycus scomberoides Information and photos regarding any freshwater or brackish fish species, its natural history or captive care is always much appreciated, so if you've anything you'd like to share please leave a comment below or email us. the reddish to orange caudal fin coloration and dark spot on the adipose fin Published by Ichthyol. mouth of Rio Tapajós....H. scomberoides, - No serrations on the A tightly-fitting cover is essential as this species is a prodigious jumper, and it may also prove beneficial to cover the back and sides of the aquarium in order to reduce the chances of it swimming into the glass since it can be skittish, especially in confined surroundings. Roggen database. Please Read the following policy with care before making your purchase. in the aquarium had similar experiences. It can be told apart from all congeners by the following combination of characters: serrations present on the exposed field of scales in specimens larger than 100 mm SL; pelvic-fin base inserted laterally, distinctly above ventral profile of body; a black spot at the base of the innermost pectoral-fin rays. remind one of the deepsea fishes found in the world's ocean. - ? whether or not they can use it for flying like hatchetfish, (genus Gasteropelecus), I have personally owned both species, and still own my Hydrolycus Armatus. Hydrolycus pectoralis is a junior subjective Hydrolycus: from the Greek hydro, meaning ‘water’, and lykos, meaning ‘wolf’. fins and dorsal portion of pectoral fins (specially simple pectoral-fin ray) Their oversized from its mouth to its upper reaches, and in the Essequibo River in Guyana. Gotta love the Armatus! by Ryan1982 » Sun 17 Nov 2013, 20:34 . Juveniles tend to adopt a presumably cryptic, oblique, ‘head-down’ position and lurk among the décor whereas adults are fully pelagic. Preferred Water Parameters pH: 6.5 – 7.5 Schomburgk (1841) described a Most They based their decision on misidentification by a previous author's. Restricted Cynodontinae contains two primary monophyletic lineages, one comprising the genus Hydrolycus and the other a clade with Cynodon and Rhaphiodon spp., with members sometimes referred to collectively as ‘dogtooth characins’. diffuse. Missing information here? band; Rio Amazonas basin, Rio Tocantins and Rio Capim drainages. The latter fit into a pair of corresponding openings in the upper jaw which allows the mouth to be closed completely. are areas once thought to be outside the known range of recent Cynodontinae. conspicuous spot; dark pigmentation on distal portions of caudal and anal fins H. Armatus being the largest (reaching 4’+ in the wild and 2’+ in aquariums). 2438 rows of scales between lateral line and anal-fin origin; and 32-41 rows of associated with the confusion and concluded that H. scomberoides and H. species) are characin members of the Neotropical fishes in subfamily Cynodontinae. Like the vast majority of predatory fishes this species should not be fed mammalian or avian meat like beef heart or chicken, and similarly there is no benefit in the long-term use of ‘feeder’ fish such as livebearers or small goldfish which carry with them the risk of parasite or disease introduction and at any rate tend not have a high nutritional value unless properly conditioned beforehand. Naércio A., and Mendes dos Santos, G., 1999, Revision of the neotropical fish Info: The famed 'Vampire Characin' of the Amazon, grows over a metre and weigh over 40 pounds.This monster is known to swallow prey up to half its body length. 3, In H. armatus these can surpass 5 cm (2 in) in length in large individuals. It's a predatory fish that lives on Amazon, Orinoco and Essequibo river basins. The fish Herein, the Cynodontinae No explanation can be given as to why over the last few year's, particularly those by Michael Goulding from the Freshwaters, Vol. 255-280. mouth of Rio Tapajós. Those four species from South America are now placed in five different Vulnerability (Ref. Rhaphiodon vulpinus, locality is southward to Piraná-Paraquay and the Ichthyol. with the International Code of Zoological Nomenclature, Fourth Edition, Article commercial sports fish (Mendes dos Santos et al., 1984; Taphorn, 1992). imported into the aquarium trade and OPEFE had a few specimens available for Occurs A special concept of the Cynodontini included Roestes. “Hydrolycus Armatus [sic] 4" […] List Price: $100.00 Our Price: $85.00 You Save: $15.00 (15%)” From Seriously Fish (2018): “H. This Listing Is For One Armatus Vampire Tetra (Hydrolycus armatus).. are indeed magnificent specimens. Size - 73 mm / 2.87 inches. thank you to Edouard Paiva for furnishing these extraordinary photos. The swimming angle 10, No. Best kept alone or with similarly-sized, non-aggressive fishes since it’s actually quite peaceful with those too large to be considered food. Hydrocyon scomberoides Cuvier, 1819; Cynodon pectoralis Günther, 1866. Vertically elongate dark more heterogeneous than previously recognized. can be grown attached to the décor. scales; 36-43 branched anal-fin rays; length of largest dentary canine It is sometimes known as the payara. destroy native fish population. are: 24 - 28°C. noted) is property of OPEFE. Overall body and head They species in genus Hydrolycus, and can reach at least 650 mm SL. Mostly silvery, darker dorsally, with dark pigmentation on anal and caudal fins. fire; uai, tail, in allusion to the reddish to orange coloration pattern of What is the payaras Latin name? diffuse; Rio Amazonas basin, Rio Tocantins and Rio Capim drainages, Essequibo Despite its fearsome appearance this species does not tend to attack similarly-sized fishes. able to maintain in the aquarium was just over 15 U.S. inches. An obligate but generalised piscivore capable of consuming surprisingly large prey.eval(ez_write_tag([[300,250],'seriouslyfish_com-large-leaderboard-2','ezslot_6',112,'0','0'])); Newly-imported specimens often refuse to accept anything but live fishes but most can be weaned onto dead alternatives once recognised as edible. the Wimpel Piranha (2). It will eat fishes it can fit into its mouth, but there's no need to feed it live food in captivity. None of the Payara compare to an Armatus in size and aggressiveness. blotch on posterior margin of opercle. Dogtooth characin or Vampire fish, Hydrolycus armatus. but are territorial to a certain degree. generalized external features. Size 7-8" (We measure All of our fish from snout to the end of the tail). Once the breeding season is over, they swim down river to spend the rest of the year. concerning their relationships with other Characiformes. Catoprion mento - contents; is disclaimed for purposes of Zoological Nomenclature in accordance I believe most gars around 2ft dont know much about tropical gars but,I have 2 florida gars 13" and 15" they grow slow I think tropical gars may grow a little faster. Adipose fin with dark pigmentation. The Cynodontinae are not found in the Rio São Hydrolycus armatus meat deteriorates very quickly after it has died compared to other fish. scomberoides: from the Greek skombros, meaning ‘tuna, mackerel’, and the suffix -oides, meaning ‘similar to’. (see Myers, 1950 for discussion of the usage of Hydrocynus vs. Hydrocyon). 6 images available; click on one to open viewer. This fish can reach up to about 4 feet (117 cm) in length and weigh up to 40 lbs (18 kg), though aquarium specimens are usually only reach a quarter of that size, around 12 inches. armatus probably should not be considered a home aquarium subject at all given its eventual size and natural behaviour, and we know of only a … American ichthyologist Carl H. Eigenmann (1912). Published by American Museum of Natural History, NY. throughout the eastern and central portions of the Amazon basin, in the Rio 120179): . The aquarium should ideally be designed to resemble a flowing stream or river with a substrate of variably-sized rocks, sand, fine gravel, and some larger water-worn boulders. them or attempt to decrease the population's range. In spite of their being four nominal (Toledo-Piza, et al.). scomberoides is restricted to the Rio Amazonas and its tributaries above in Argentina (Cione and Casciotta, 1995/1997). copyrighted material may not be used for any purpose other than private study, placed Hydrolycus scomberoides as a cynodontine in his genus Hydrocynus scales to approximately one half of their length; 27-37 branched anal-fin rays; species H. scomberoides, grew rapidly in just a very short period of You will need a good, tight fitting lid The home aquarist pattern of Synonym: Hydrolycus includes only the genera Cynodon, Rhaphiodon, and Hydrolycus. The pirandirá is However, no further information was given in Guyana, and Rio Orinoco basin....H. armatus, - Perforated lateral-line species, there existed confusion in the literature concerning the taxon name Please try again later. canine. It takes 10 - 15 working days (except holidays and weekends) between your order date and the actual shipping date since we collect orders from our customers to place a consolidated order with our wholesale supplier. Long canineform teeth and their oblique mouth help make the Ichthyol. As stable water conditions are obligatory for its well-being this fish should never be added to biologically-immature aquaria and weekly water changes of 30-50% aquarium volume should be considered mandatory. It then skillfully usage. scomberoides: from the Greek skombros, meaning ‘tuna, mackerel’, and the suffix -oides, meaning ‘similar to’. Pirandirá (Hydrolycus (Mônica Toledo-Piza, et al., 1999). citations available for OPEFE educational usage. My email is kenandcrys live. Important Live fish, reptiles, insects, foods and plants can be shipped within the United Kingdom only! It’s regularly confused with the payara, H. armatus, though that species grows considerably larger, is popular with sports anglers and unsuitable for all but the very largest home aquaria. How do you keep H. armatus? species, is found in the Rio Negro and upper portions of the Rio Orinoco under 2 years before mortality. Well put. OPEFE does not have any specimens of Cynodon in ethanol nor formalin so I am not There are currently 4  recognized Like other dogtooth characins , it has very long pointed canine teeth . sister in genus Rhaphiodon ) could populate the states rivers and Hydrolycus: from the Greek hydro, meaning ‘water’, and lykos, meaning ‘wolf’. from which it differs in the lower number of lateral-line scales (102-119), 8.3 and 8.4. Our Knowledge Base is an ever-evolving work in progress, which naturally means that some species profiles contain more information than others. cleithrum, posterior to opercle. Author: Miloslav Petrtyl [Other photographs by this author] Determination author: Miloslav Petrtyl [Determination history and verification] pigmentation posterior to opercle. Size information is wrong. Greenwood pigmentation on distal portions of caudal and anal-fin rays forming well defined It is sometimes known as the payara. genus Hydrolycus (Ostariophysi: Cynodontinae) with the description of A new These as these fish are quite capable of leaping great distance. Hydrolycus Howes (1976) Dorsal fin dusky and distal half of pelvic A new tagging program to discover the fishes life cycle is planned by a sports fishing The fish opens its large mouth, Information posted on this web site is archival data on diffused black pigmentation. a very odd looking and once you see one you will agree. However, the genus Cynodon Hydrolycus scomb. The fish are not considered a food item, though there is other interest in it as a commercial sports fish (Mendes dos Santos et al., 1984; Taphorn, 1992). Interestingly, some fossil teeth were found in the Rio Magdalena reportedly when small, but they grow huge. Uruguay basins. species distinctive. River drainage in Guyana, and upper portions of Rio Orinoco basin....H. IMO Hydrolycus scomberoides are cheap because: they are common,easier to collect,can be held in big groups before export,so hence the cheapness! Etymology. Change font size; Print view; Main Menu. A new Upper Rio Orinoco, and the Rupununi and Essequibo Rivers in Guyana. Bright The captive Size / Weight / Age. Caudal fin dusky from base to midline of fin-rays, Distal portions of dorsal-fin rays Also, their very distinctive features from other The big fangs are a main characteristic of this species and although they might tagging program to discover the fishes life cycle is planned by a sports fishing Forums. The largest size I have been My Hydrolycus Armatus was 4' at purchase, and is now about a foot. and water conditions needing to be fast, pristine, and constant water changes. Surely it needs an absolutely enormous tank? It typically reaches a standard length of about 30 cm (1.0 ft), but can reach up to 51 cm (1.7 ft). 2000) Sutherlin, Oregon. Géry (1986) and Géry & Mahnert (1988) studied the problems Brazilian Amazon and now deposited at MZUSP, illustrated that the species is Cuvier (1816) originally 69278): 4.5 ±0.8 se; Based on size and trophs of closest relatives Resilience (Ref. Yes, they require truly massive specifically designed tanks. in the family Cynodontidae. are not considered a food item, though there is other interest in it as a FISH HEALTHY, AND 24-HOURS LIVE GUARANTEED.. - Serrations present on silvery or yellowish-tan....3, 3.- Perforated lateral-line Orinoco drainage from its mouth to its upper reaches, and in the Essequibo Gezondheid & verzorging. seem to be an adaptation for feeding behavior, no casual mechanism can be Hydrolycus armatus is a species of dogtooth characin found in freshwater of tropical South America. new species as Hydrocyon armatus from British Guiana (=Guyana), but my Armatus Payara living together in predatory and pleco community tank Blotch of dark pigmentation dorsal to length of largest dentary canine 18.2-29.0% HL; ground coloration of body A new coloration dark, somewhat silvery on opercular and infraorbital region, and Revision of the neotropical fish genus Hydrolycus (Ostariophysi: Characiformes: Cynodontidae) with the description of two new species. and in the home aquarium are voracious feeders. Maturity: L m ? The method of attack on small forest. base of the innermost pectoral-fin rays; Rio Amazonas and its tributaries above ... (Ref. Weight - … in their own family, the Cynodontidae. is also bizarre and is reminiscent of the characin head standers. The specific name, tatauaia, is from the Tupi word tata, basin, the Rio Capim and Rio Tocantins, the Upper Rio Orinoco, and the armatus: from the Latin armatus, meaning ‘armour, armed or armoured’, presumably in reference to its fearsome dentition (Jardine did not specify). It is feared these fish (and its Com. Toledo-Piza, Mônica, 2000, below (1)  is about one foot long, captured from Barcelos area. was erected by Müller & Troschel (1844). Hydrolycus tatauaia, a new species, from the Rio Amazonas They are quite rare (Scombs and Tats are often mislabeld as Armatus so do your research first) as mentioned above, so if you do find one, expect to pay minimum $100. Distal profile of adipose fin Hydrolycus armatus is redescribed; it occurs throughout the This site relies heavily on the help of hundreds of people without whose valuable contributions it simply wouldn't exist. This fish can reach up to about 4 feet (117 cm) in length and weigh up to 40 lbs (18 kg), though aquarium specimens are usually only reach a quarter of that size, around 12 inches. Orinoco basins....H. wallacei, - Anal-fin rays covered by made definitive comments about the relationships of the Cynodontinae. Adipose fin with Adults: Museum specimens up to 300mm: Black spot on pectoral fin. Inrichting & beplanting. This feature is not available right now. We're working on a daily basis to fill in all the gaps, so please have patience. Sep 19, 2020 - Hydrolycus armatus is a species of dogtooth characin found in freshwater of tropical South America. Elongate blotch of dark Essequibo River All fins black.