Results for “congener”
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Kottelatlimia katik
Kottelat & Lim, 1992
Max length14mm SL0.6in SLTank45 × 30cm18 × 12inTemp23–26°C73–79°FpH3.5–6.5We're unaware of this species having yet appeared in the aquarium trade although a few private collectors have experience with it. Among congeners it uniquely possesses a simple suborbital spine and further differs from K. pristes by: smaller adult size (13.5 mm SL vs. 40); presence of a long nasal barbel (vs. absence); anatomy of the modified second pectoral ray in males (6-7 fine, narrow serrae vs. 8-11 pointed, anteriorly-orientated serrae). In K. hipporhynchos the serrae on the second pectoral ray in males form a broad, contiguous blade-like structure but other differences are the same as for K. pristes.

Kryptopterus geminus
Ng, 2003
Max length171mm SL7in SLTank150 × 45cm60 × 18inTemp20–28°C68–82°FpH6.0–7.5This species is likely to be traded for aquaria but probably misidentified as the very similar-looking K. cyrptopterus with which wild populations were formerly considered conspecific. These two are closely-related and can be distinguished from congeners by the dorsal profile lacking a nuchal concavity (vs. possessing a nuchal concavity) and possessing short maxillary barbels (extending to the pectoral-fin base vs. ext...

Kryptopterus vitreolusGlass Catfish
Ng & Kottelat, 2013
Max length65mm SL2.6in SLTank90 × 30cm36 × 12inTemp20–26°C68–79°FpH4.0–7.0This species has been available in the trade for decades during which time it's been widely misidentified as the valid congeners K. bicirrhis or, more recently, K. minor. Its identity was not resolved until early 2013 meaning you will find it under one of these two names in the majority of literature published prior to that date. Other trade names include 'Asia...

Labiobarbus ocellatus
Heckel, 1843
Max length180mm SL7in SLTank150 × 45cm60 × 18inTemp20–28°C68–82°FpH6.0–7.5It can be distinguished from congeners by the following combination of characters: 61-68 scales in the lateral series; a small, well-defined, sometimes ocellated black spot on the shoulder and another in the centre of the caudal peduncle; body without longitudinal stripes formed by spots on scales; caudal fin uniformly dusky or colourless, lobes without stripes or black margins.

Labiobarbus siamensis
Sauvage, 1881
Max length200mm SL8in SLTanknot recordedTempnot recordedpHnot recordedL. 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...

Laemolyta taeniataStriped Headstander
Kner, 1858
Max length288mm SL11in SLTank120 × 60cm48 × 24inTemp20–28°C68–82°FpH4.0–7.5L. taeniata is the largest-growing and second most widely-distributed member of the genus although it's a rarely-seen in the aquarium trade. It can be distinguished from all congeners since it uniquely possesses 5 lateral scale rows between the lateral line and dorsal-fin origin (vs. 4 or 6–8 in the remaining species).

Laetacara araguaiae
Ottoni & Costa, 2009
Max length35mm SL1.4in SLTanknot recordedTempnot recordedpHnot recordedThis species was known as L. sp. 'Buckelkopf' in the aquarium hobby prior to publication of its official description. It's distinguished from all congeners by possessing 7-8 dorsal-fin rays (vs. 9–10 in L. dorsigera, L. fulvipinnis and L. thayeri, 8–9 in L. curviceps and L. flamannellus, and 9–11 in L. flavilabris).

Laetacara thayeri
Steindachner, 1875
Max length65mm SL2.6in SLTanknot recordedTemp20–28°C68–82°FpH4.5–7.5This species is relatively rare in the aquarium trade. It can be differentiated from all congeners by a combination of possessing ctenoid (vs. cycloid) scales on the sides of the head plus lacking a dark spot at the caudal-fin base.

Lamontichthys filamentosusSturgeon Catfish
La Monte, 1935
Max length167mm SL7in SLTank120 × 45cm48 × 18inTemp22–30°C72–86°FpH5.5–7.5This species is relatively common in the aquarium hobby but is not easy to maintain and recommended only for experienced aquarists. It can be told apart from all congeners by specimens larger than 60 mm SL possessing an extended pectoral-fin spine forming an extremely long filament that may be more than four times the length of the first branched pectoral-fin ray (vs. not possessing such a filament in other species of Lamontichthys).

Laubuka siamensis
Fowler, 1939
Max length60mm SL2.4in SLTank120 × 30cm48 × 12inTemp20–28°C68–82°FpH6.0–7.5Considered synonymous with the congener L. laubuca for a number of years, thus reports of that species from anywhere in Indochina actually refer to the current concept of L. siamensis. Given the distribution of L. siamensis, it seems likely that many of the fish entering the aquarium trade are also this species and not L. laubuca. The two species can be distinguished by...

Lepidocephalichthys berdmorei
Blyth, 1860
Max length120mm SL5in SLTank75 × 30cm30 × 12inTemp20–25°C68–77°FpH6.0–8.0This is one of the most frequently-traded members of the genus and is an excellent choice for those new to keeping loaches. It's distinguishable from congeners by a combination of characters including: relatively large adult size (to at least 80 mm SL); rounded/truncate caud...

Lepidocephalichthys cf. irrorataLoktak Loach
Hora, 1921
Max length30mm SL1.2in SLTank45 × 30cm18 × 12inTemp20–25°C68–77°FpH5.5–7.5This species is not traded often but may occasionally be exported as bycatch among shipments of other species. It can be distinguished from congeners by the following combination of characters: presence of large, exposed scales on top of head; dorsal-fin origin posterior to pelvic-fin origin; moderate to small size (to 29 mm SL); caudal-fin emarginate and with dark reticulations; caudal-fin lobes with dark, elongated spots along upper and lower edges.

Lepidocephalichthys furcatus
de Beaufort, 1933
Max length50mm SL2.0in SLTank45 × 30cm18 × 12inTemp23–26°C73–79°FpH5.5–7.5This species is not traded often but is occasionally available as bycatch among shipments of other species. It can be told apart from congeners most easily by the prominent, dorsally-orientated, roughly semi-circular lamina circularis in males, a feature unique within the genus. Other distinguishing characters include a combination of: forked caudal-fin; relatively small adult size; dark <-shaped mark at the base of the caudal-fin; a black spot at the base of branched caudal-fin rays 3-5.

Lepidocephalichthys guntea
Hamilton, 1822
Max length150mm SL6in SLTank80 × 30cm31 × 12inTemp20–25°C68–77°FpH6.0–8.0This is one of the most frequently-traded members of the group and is an excellent choice for those new to keeping loaches. It's distinguishable from congeners by a combination of characters including: rounded/truncate caudal-fin; a scaleless patch on top of the head; relatively large adult size; flanks with spotted patterning in females and a solid...

Lepidocephalichthys thermalis
Valenciennes, 1846
Max length50mm SL2.0in SLTank45 × 30cm18 × 12inTemp20–25°C68–77°FpH6.0–8.0This species is available sporadically and makes an excellent choice for those new to keeping loaches. It's distinguishable from congeners by a combination of characters including: truncate/rounded caudal-fin; no scales on top of head; dark, squarish spots o...

Lepidocephalichthys tomaculum
Kottelat & Lim, 1992
Max length39mm SL1.5in SLTank45 × 30cm18 × 12inTemp23–29°C73–84°FpH3.5–7.0This species is not traded often but may be available occasionally bycatch among shipments of other species. It can be told apart from congeners most easily by the following combination of characters: truncate caudal-fin; scaleless patch on top of head; caudal-fin with reticulated patterning, sometimes appearing as a series of thin vertical bars; body reddish brown with darker markings; 3-7 predorsal and 3-6 postdorsal thin, transverse dark bars running across the dorsal surface; relatively deep...

Lepidocephalichthys zeppelini
Havird & Tangjitjaroen, 2010
Max length26mm SL1.0in SLTank45 × 30cm18 × 12inTemp20–26°C68–79°FpH6.0–7.5The type locality consisted of remnant ephemeral pools in otherwise dry agricultural land, and many adults were collected from such habitats. Other species present included the congener L. hasselti plus members of Anabas, 'Puntius', Rasbora, Channa, and Hampala.

Leptobarbus hoeveniiMad Barb
Bleeker, 1851
Max length1000mm SL39in SLTanknot recordedTemp20–26°C68–79°FpH6.0–8.0Apparently native to Peninsular Malaysia plus the Greater Sunda Islands of Borneo, Sumatra, and Java. Reports of this species from the Mekong, Chao Phraya, and other rivers in Indochina refer to the congener L. rubripinna (see 'Notes'). Type locality is 'Indonesia: Borneo: Kalimantan Selatan: Banjarmasin'.

Leptobarbus rubripinnaRed-finned Cigar Shark
Fowler, 1937
Max length1000mm SL39in SLTanknot recordedTemp20–26°C68–79°FpH6.0–8.0This species was referred to as its congener Leptobarbus hoevenii for a number of decades and continues to be misidentified as such in the aquarium hobby, with both species traded under the same name. It is a popular sport fish in its native countries and is wholly unsuitable for private aquaria. Unfortunately it is...
Lestradea perspicax
authority not recorded
Max length135mm SL5in SLTank120 × 30cm48 × 12inTemp24–27°C75–81°FpH7.8–9.0There is some confusion regarding the taxonomy of this species and its congener L. stappersi. L. stappersi was originally regarded as a subspecies of perspicax but is now considered a distinct species. It is not often seen in the hobby....