| Sisoridae (Sisorid catfishes), subfamily: Glyptosterninae |
| 13.8 cm SL (male/unsexed) |
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benthopelagic; freshwater |
| Asia: Mekong basin in Laos. |
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Dorsal spines (total): 0-0; Dorsal soft rays (total): 7-7; Anal soft rays: 4-5; Vertebrae: 40-42. Can be differentiated from its congeners in having a unique combination of the following characters: lower lip lacking a median notch and having a posterior margin with lobulate projections, lunate caudal fin with elongate, strap-like lower principal ray in mature males, gill slit arched, nasal barbel reaching about half of the distance to the eye, presence of a pale elliptical patch on sides of body below adipose fin, male genital papilla located immediately behind the anus in a depression terminating posteriorly with a straight transverse wall, caudal peduncle 6.1-7.1 times longer than deep, length of caudal peduncle 18.7-21.7% SL, depth of caudal peduncle 2.7-3.6% SL, post-adipose distance 8.6-11.6% SL, snout length 57.9-61.2% HL, eye diameter 8.6-10.0% HL, interorbital distance 23.7-27.2% HL and maxillary barbel with rounded tip (Ref. 37793); lower caudal lobe with a long ribbon-like extension in male (Ref. 43281). |
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Least Concern (LC); Date assessed: 16 February 2011 Ref. (130435)
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| harmless |
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