Results for “congener”

Prior to description C. kanei was assigned the 'C' numbers C026 and C046. Among congeners it is most easily-confused with, and sometimes traded as, C. atropersonatus, but can be identified by presence (vs. absence in C. atropersonatus) of dark markings in the anal and caudal fins, presence of numerous, smaller (vs. fewer, larger) dark spots on the body, and an overall darker (vs. paler) base colouration.

This species occurs alongside a near-identical congener, C. condiscipulus in nature. In fact condiscipulus literally means 'schoolmate', as the species are often found shoaling together. The only external difference between the 2 seems to be the longer snout and wider distribution within the Rio Oyapock of condiscipulus....

This species can be identified from similar-looking congeners by possession of a pair of small rictal barbels. Its colour pattern can vary considerably depending on collection locality, with some forms having been misidentified as other species in the past. Those possessing a dark marking on the sides of the body are sometimes referred to as Corydoras sp. 'olga'.

This species is among a handful of near-identical congeners that are traded as 'Siamese algae-eater' (often abbreviated to 'SAE'), 'Siamese flying fox' and 'Crossocheilus siamensis'. The latter name is not valid, however, and is a synonym of Epalzeorhynchos siamensis which is itself a synonym of Crossocheilus oblongus, a species described from Java. C. oblongus is currently accepted to...

We've been unable to obtain a diagnosis for this species to date but it can at least be distinguished from those congeners traded as 'Crossocheilus siamensis' (an invalid name synonymous with C. oblongus, which is itself of questionable identity), 'Siamese algae eater', or 'SAE' by the fact that the dark lateral stripe does not extend into the caudal-fin. Members of Crossocheilus are characterised by...

Given its wide natural range it seems logical that this species is or has been available in the aquarium trade, although its correct name may never have been applied. It is told apart from congeners by the following combination of characters: two pairs of barbels; a continuous midlateral stripe from the tip of the snout to the base of the caudal-fin, with a conspicuous small blotch at the posterior extremity, faintly marked on the caudal-fin; a faint mark between the anus and the anal-fin origin in juveniles; a narrow mouth.

It can be distinguished from congeners by possessing one or two pairs of barbels, a black blotch at the base of the caudal-fin, and rows of dark spots along the lateral scale rows. Members of Cyclocheilichthys are characterised by possessing a serrated dorsal fin spine, 9 branched pelvic fin rays, a conical snout, small, subterminal...

As with others in the genus little has been written regarding captive care of this species, but it makes a peaceful and unusual addition to larger aquaria. The best way of obtaining it may be to keep an eye on shipments of wild fishes from Indochina. It can be distinguished from congeners by possessing 20 circumpeduncular scales and lacking barbels entirely.

Populations of C. frontosa from different localities are often labelled as such in order to maintain accuracy and preserve pure bloodlines. The majority possess 6 vertical bands on the body with the exception of the form from Kigoma on the eastern side of the lake, which has 7. Forms referred to as 'Blue Zaire' are sometimes misidentified as C. frontosa but are representative of its congener C. gibberosa.

As far as we know this species has not been bred in aquaria although Pete Liptrot and Paul Dixon of the Bolton Museum Aquarium, UK, have achieved great success with an unidentified congener. They first noticed fry from their group of 24 adults after moving the school to a dedicated set-up planted with mature Java moss and have since rewarded with regular batches of fry.

A. calobrensis is not as common in the hobby as some other species in the genus (most notably A. citrinellus). It was considered a member of the genus Cichlasoma for some time, before being restored to its original position in Amphilophus. However it exhibits several characteristics that seem to set it apart from its congeners. As a result many experts believe it will probably be moved into a newly-erected genus at some point in the future. You may also see it listed as a member of Astatheros oc...

This species is among the more well-known badids in the aquarium hobby, and is a popular choice for 'nano' aquaria since it is among the smallest percoid fishes known. It is easily told apart from congeners since it is the only species in which males possess a series of seven iridescent blue vertical bars on the flanks.

This species is traded under various names such as 'red melon Dario' or 'flame red Dario'. Among congeners D. dayingensis is most similar since it differs only in a few meristic counts and by its slightly larger adult size. D. hysginon can be told apart by possessing 22-24, usually 23, lateral scales (vs. 24-25 in D. dayingensis), 8½ (vs. 9½) scales in the transverse scale row, a...

D. foerschi is sometimes traded as 'boomerang barb' or 'Foersch's fire barb' and is included in a group of closely-related, similar-looking fishes which were moved into the new genus Desmopuntius by Kottelat (2013). It can be told apart from other vertically-striped congeners by possession of additional dark blotches between the second, third and fourth vertical bars and a further marking at the posterior base o...

Endemic to southern Kalimantan, the Indonesian portion of Borneo where it's been recorded from several river systems including the Kapuas, Kepayang, Barito and Kahajan. Type locality is given as 'Canal along the highway from Oelin to Bandjermasin, about 15 kilometers from Bandjermasin, Borneo.' Often referred to as the 'rhomb' or 'rhombo' barb and included in a group of closely-related, similar-looking congeners which also includes...

Ecological studies have revealed this species to be more of a generalist than its chiefly insectivorous congeners. Aquatic and terrestrial insects form a significant proportion of the diet, but substantial amounts of filamentous algae and diatoms are consumed with water mites, fish scales, isopods, nematodes and detritus also taken occasionally. In the aquarium it's largely unfu...

It can be further distinguished from other species in the genus by colour pattern consisting of a dark, horizontal P stripe originating around mid-body, where it's relatively faint, this becoming thicker and darker in the posterior portion of the body and terminating at the base of the caudal-fin. Among congeners it's most similar to D. chrysotaeniatus but that species lacks the infraorbital process, has three rows of pharyngeal teeth and the P stripe extends to the end of the caudal-fin rays.

This species is frequently confused with the congener D. aequipinnatus auct. but their identitities are in a state of confusion, particularly that of the latter. There are however a handful of characters which separate these two nominal species from one another. D. malabaricus possesses a moderately deep body, 35-38 scales in the lateral se...

E. octozona can be told apart from congeners by the following combination of characters: bar 1 present; presence of a large and distinct black mark anterior to anus, visible in lateral and ventral views; simple dorsal-fin rays black, sometimes extending onto first branched ray; other rays hyaline or with diffused chromatophores on last dorsal-fin ray, adjacent to upper extremity of bar 6; 25-31 serrae on last simple dorsal-fin ray; uppermost ray of pectoral-fin with faint black margin; width of bar 5 equal to 1-1½ lat...

Following the key of Romand (1992) this species can be told apart from congeners by the following combination of characters: adult size > 40 mm SL; large, dark, transverse bars and some reddish-brown pigmentation on flanks; longitudinal bands more-or-less defined; longitudinal bands composed of small red spots; caudal-fin subquadrangular caudal fin; 11-13 anal-fin rays; 16-17 dorsal-fin rays; 7-8 anal-fin rays located anterior to dorsal-fin origin.