Results for “caudal”

Not recommended for the beginner or for the general community tank, despite often being sold as such. The Jewel Cichlid is regularly seen in the trade. Recently, Hemichromis lifalili has become the more popular fish. These species can be easily distinguished as H. lifalili have only 2 black spots on the flanks whereas H. bimaculatus has 3, having an extra spot on the caudal peduncle....

Often confused with Hemichromis bimaculatus. These species can be easily distinguished as H. lifalili have only two black spots on the flanks whereas H. bimaculatus has three, having an extra spot on the caudal peduncle. It can also be told apart from the similar red form of H. guttatus by comparing the midlateral markings of the two. In lifalli the marking is round and is situated above the lateral line. In guttatus the marking is oval in shape and some of it extends below the lateral line. ...

Also known as the beacon tetra, this species is ubiquitous in most dealers' tanks and is one of the best choices for the newcomer to fishkeeping. It's both hardy and inexpensive. It has been popular in the hobby for several decades. There is a selectively bred albino form that has become popular in recent years, for which care is identical to the standard fish. There is possibly also a subspecies, H. ocellifer falsus that lacks the red spot at the caudal peduncle (the gold-coloured tai...

Vernacular names in Brazil include 'Cachorra' or 'Pirandirá', although these are also applied to congeners. It can be told apart from all congeners by the following combination of characters: head and body silvery with dark dorsal surface; an elongate dark blotch posterior to the opercle; dorsal, caudal and anal-fin rays reddish to orange proximally with some individual variation in intensity and tonality; adipose fin dark, with diffuse black pigmentation.

This species is available on a relatively regular basis, although it's sometimes confused with the similar-looking congeners H. loretoensis and H. metae. It can be identified via the following combination of characters as per Géry (1977): elongate in shape with body depth fitting 3.8-3.9 times in its standard length; caudal peduncle narrow, its depth fitting 1.8 times in its length; head short, interorbital broad, snout short and rounded; dorsal-fin insertion an...

L. siamensis can be distinguished from congeners by the following combination of characters: 39-42 scales in the lateral series; shoulder spot usually absent, but sometimes well-defined; body with longitudinal stripes formed by a spot on each scale; dorsal fin with dusky median stripe and no red coloration; caudal fin dusky, sometimes with reddish coloration, but no well-defined stripes; 20-23 circumpeduncular scales...

It can be distinguished from other members of the genus by the following characters: lateral line absent or perforating only 2-5 scales; pharyngeal teeth hooked; body size small, not exceeding 30 mm SL; body depth less than 25 % SL; colour pattern comprising a dark bluish lateral stripe extending from the eye to the caudal peduncle, typically, but not always, forming 2-5 circular spots along its length.

It can be distinguished from other members of the genus by the following characters: dark longitudinal stripe on body, extending from eye to caudal peduncle; scattered tubercles present on lower jaw; 14½-16½ branched anal-fin rays; pelvic-fin long, reaching beyond anus.

L. elongata is the type species of the genus but according to current knowledge there exist 13 members in total, all of which are endemic to China and northern Vietnam. They're diagnosable by the following shared characters: possession of a simple (non-bifurcated), short sub-ocular spine not extending beyond the posterior edge of the eye; a laterally-compressed body; relatively deep caudal peduncle; pelvic fins reaching origin of anal-fin; anus below base of dorsal-fin and equidistant between pelvic and anal-fin origins.

This species is frequently mistaken for the similar-looking congener M. spechti Schreitmüller 1936, which is easily-identified by the absence of reddish pigmentation in the dorsal, anal, and caudal fins. There has been some debate as to whether these two represent the same taxon, however, with Winstanley and Clements (2008) proposing that M. erythropterus be considered a synonym of M. spechti because they were unable to separate the two species by morphological characters, and specimens with red pigmentation on the unpaired fins were coll...

The genus Microdevario was raised by Fang et al. (2009) after phylogenetic analyses revealed that some species formerly included in Microrasbora to be more closely allied with Devario and in need of reclassification. Microdevario is largely separated from Devario and other closely related genera such as Chela and Laubuca by virtue of internal characters but also the following: small adult size; anal and dorsal fins with concave-shaped distal margin; absence of barbels; absence of perforated scales; 9-10 branched anal-fin rays; 7 branched dorsal-fin rays; less abdominal than caudal vertebrae.

There are a dozen described species of Microsynodontis but most are not seen in the hobby. This species is one of the commoner ones however. Microsynodontis are much smaller than Synodontis species, with M. batesii being the largest. They can be distinguished from Synos and the similar Mochokiella by the rounded or slightly forked caudal fin. The is highly forked in the other genera. Interestingly in Microsynodontis the eyeball is fixed and cannot be moved unlike in Synodontis which has a moveab...

There are a dozen described species of Microsynodontis but most are not seen in the hobby. This species is one of the commoner ones however. Microsynodontis are much smaller than Synodontis species, with M. batesii being the largest. They can be distinguished from Synos and the similar Mochokiella by the rounded or slightly forked caudal fin. The is highly forked in the other genera. Interestingly in Microsynodontis the eyeball is fixed and cannot be moved unlike in Synodontis which has a moveab...

This species is rarely imported. It is easily confused with N. parilus but can be distinguished by the fact that male fish lack the barring seen in the upper part of the of parilus and have dark edges to the scales on the body. Females can be distinguished by the spotting in the lower part of the caudal, which is unpatterned in parilus. We do not recommend this species to the beginner due to its very specific water and care requirements....

N. parilus is one of the commoner Nanochromis in the hobby as it is more easily collected from its natural waters than most species. It is easily confused with the less often seen N. nudiceps but can be distinguished by the fact that male fish exhibit a barred patterning inn the upper half of the which is not present in nudiceps. Females can be distinguished by the unpatterned lower part of the caudal, which is spotted in nudiceps. There are a couple of geographical variants available. We do ...

This species was originally named Nemacheilus masyae but following ICZN rules the spelling was later corrected to N. masyai because it's named after a man. It can be distinguished from the majority of congeners by body patterning comprising 14-18 short, dark vertical bars on each flank, 12-17 saddle-like markings running along the dorsal surface, a dark spot on the caudal peduncle at the termination of the lateral line and a dark blotch in the lower half of the first few dorsal-fin rays.

N. selangoricus is most similar to N. spiniferus since it possesses acuminate scales above and below the lateral line on the caudal peduncle, a feature not shared with any other congener. It can however be distinguished by the following characters: presence of 8-12 very regular dark bars on flanks (vs. 10-13 irregularly-shaped bars in N. spiniferus), 3-5 times...

This species has previously been considered synonymous with both O. ornatus and O. pulchellus but is currently considered to be distinct following (Tejavej, 2012). It can be distinguished from congeners by a combination of characters including: small caudal spot presen...

An assortment of undescribed Oreichthys spp. from India, Myanmar and Thailand are currently traded as O. cosuatis. It can be distinguished from other described members of the genus by lacking a black blotch on the caudal peduncle, plus the following combination of characters: 2-3 perforated scales in lateral line; ½6½ between pelvic-fin origin and dorsal midline; presence of dark stripe in centre of anal-fin, forming a triangular blotch in adult individuals; dorsal-fin with whitish tip and broad, black, subdistal margin in the upper portion of the fin; 11-13 rows...

This fish is one of several sometimes imported and sold as Oreichthys cosuatis or O. parvus which has led to considerable confusion. It appears to be an undescribed species and can be most easily identified by the absence of a dark marking in the dorsal-fin of adult males (vs. presence in O. cosuatis and O. parvus) and possession of a large, well-defined black blotch on the caudal peduncle ( vs. absent in O. cosuatis, smaller and less well-defined in O. parvus).