Results for “pectoral”

This species occurs alongside the similar-looking congener C. oiapoquensis in nature, from which it can be told apart by the following combination of characters: larger adult size; narrower body (body breadth fits 4.0-4.4 times in standard length vs. 3.4-3.8 times in C. oiapoquensis); shorter pectoral spine (3.4-3.8 times in SL vs. 2.7-3.2 times); longer snout (1.7-1.9 times in SL vs. 2.0-2.2).

Corydoras are members of the armoured catfish family. The genus name means "helmet skin" and the fish live up to this name as they are rather tough little fish. They also have spines in the leading rays of the pectoral fins to deter larger predators from eating them. Corydoras are sometimes observed taking a gulp of air at the water surface: this is because they can absorb oxygen through their gut. It is not known why cories do this even on oxygen rich waters. Along with the bronze ...

This species has a similar patterning to C. sterbai, but lacks the orange pectoral spines of that species. It's rare in the hobby....

This species is now considered a member of the Hara genus by many experts, but as things stand it is still officially included in Erethistes. It is, in all likelihood, a Hara, as Erethistes is characterised by divergent denticles on the pectoral fins, whereas Hara possess outwardly pointing denticles. E. maesotensis has these outwardly pointing denticles. It's quite rare in the trade, but makes an interesting addition to an Asian stream community tank if you can get hold of some....

G. ornatapinnis can be distinguished from congeners by the following combination of characters: head small; snout relatively short and blunt; caudal peduncle very deep; pectoral, pelvic, and anal fins usually reddish-orange or rose-tinted; pelvic and anal fins often with white tips; barbels completely absent.

This delightful little species can be distinguished from others in the genus by its elongated pectoral spines. It, and others in the genus (and also the closely related genus Erithistes), also go by the common name of moth catfish due to their patterning and shape when viewed from above....

Also known as the knob nosed whiptail, this species is difficult to confuse with any other Loricariid due to its distinctive 'diamond' shape when viewed from above, and peculiarly shaped rostrum (nose), which is enlarged at the tip. It also lacks discernible odontotes on the head and pectoral fins. So distinctive is it, in fact, that it is currently monotypic (the only species in its genus). The species name is derived from its superficial resemblance to the sturgeons of the genus Acip...

Also known as the stinging or fossil catfish, H. fossilis is not recommended to the inexperienced due to its venomous nature. The venom is contained in sacs at the base of the pectoral spines. A sting from one of these is very painful indeed, in some very rare cases fatal. It goes without saying that extreme care must be exercised when performing tank maintenance, or if you need to move the fish for any reason. If stung, the wound should be immersed in water as hot as you can stand, as this will...

Tan (2009) redescribed H. stephensoni and it possesses the following unique character set: sub-inferior mouth with thin barbels; five principle, 12-13 secondary pectoral fin rays (usually 12); scaleless belly; pattern of keeled scales on anterior, dorsal portion of body consisting of a single central keel in the posterior third of each scale; 43-50 lateral line...

It is very similar to H. wetmorei but can be told apart by possessing yellow (vs. orange to red in H. wetmorei) pectoral, pelvic, and anal fins. It thus appears likely that yellow-finned fish marketed as H. wetmorei or 'lemon fin barb' in the ornamental trade are actually H. vernayi, with both species available on a regular basis.

This species differs from congeners in the presence of papillae covering the mouthparts (lips, barbels, and lobes) which are absent in other species. It's also the largest species in the genus and the serrae on the second pectoral fin rays in males form a broa...

An interesting species which resembles the popular Steatocranus species, both physically and in lifestyle. It has several physiological adaptations to allow it to live in rapids and fast-moving waters. The body is very streamlined, with strong pectoral fins. The swimbladder is also modified, being much reduced in size. This makes the fish less buoyant and thus less likely to be swept away by strong currents. In the aquarium it spends most of its time on the substrate, where it swims in a comical...

This unidentified species has been traded since the mid-00s and appears to be a member of the P. khulii-oblonga species group as per Bohlen et al. (2011). There are two similar-looking forms; one has a darker body, dark pigmentation in the pectoral fins and barbels and a blue sheen on the head, while the...

The common name of this surface-dwelling species is derived from it's appearance when viewed from above, the large pectoral fins giving it the appearance of a butterfly. In reality, these fins serve a dual purpose. They help to camouflage the fish, making it look like a dead leaf floating on the surface, and along with the caudal fin, power the incredible jumps that it is capable of making. The fish jumps from the water to catch flying insects or to escape potential predators and it can mak...

Following Bonou and Teugels (1985), P. africana can be distinguished from congeners by the following combination of characters: colour pattern unique, comprising a series of 8-11 dark, chevron-shaped markings extending along the body posterior to the pectoral fins; 19-24 scales in the transverse series; lateral line complete with 73-83 pored scales; 45-48 dorsal-fin rays 45-48; 32-35 anal-fin rays.

In males the dorsal, anal and caudal have a black subdistal band bordered on either side by bluish iridescent bands, with the inner one significantly thicker. The pelvic fins are iridescent emerald green with a dark blotch at the base and a subdistal dark spot, while the pectoral fins are hyaline.

This species is not in the aquarium trade though is maintained by a few private collectors. It can be distinguished from all other members of the genus by the following combination of characters: first dorsal-fin withfirst dorsal-fin elongate in males; anterior portion of body with loosely-arranged ctenoid scales; head, entire nape to first dorsal-fin base, pectoral base, and belly naked; male colour pattern comprising creamy-yellow anterior portion of body with dark blotch at midbody and bright orange/red in postero...

This is one of the species of Synodontis seen less frequently in the trade and it ranks alongside S. schall as one of the more aggressive members of the genus. It is very hardy however and makes a good tankmate for large aggressive cichlid species. One unique characteristic of S. acanthomias is that the humeral process (the bony extension just above the pectoral fins) is long and tapered with a curved end....

This is an uncommonly imported Syno that is nevertheless very attractive. It has distinctive serrated edges to the pectoral fins and will exhibit its strongest colouration over a light coloured substrate....

This beautiful little fish is not actually a goby, it's a member of the Eleotridae family, commonly known as sleepers or gudgeon. Members of this family lack the fused pectoral fins of true gobies. This species is one of the smallest and most attractive in the family, and makes an ideal resident of the planted community tank....