Pseudeutropius indigens Ng & Vidthayanon, 2011
Pseudeutropius indigens
photo by JJPhoto

Family:  Horabagridae (Imperial catfishes)
Max. size:  6.71 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater
Distribution:  Asia: Thailand.
Diagnosis:  This species is distinguished from P. moolenburghae in having fewer anal-fin rays 37-41 (vs.42-49); fewer rakers on the first gill arch 33-35 (vs. 43-45); a wider head 10.5-11.0% SL (vs. 8.5-9.9% SL); differs from P. brachypopterus in having more anal-fin rays 37-41 (vs. 31-35); shorter (23.1-24.3% SL vs. 27.0-30.6) and narrower (10.5-11.0% SL vs. 11.7-14.0) head; differs from P. mitchelli in having more anal-fin rays 37-41 (vs. 35-37); longer nasal, maxillary and mandibular barbels, reaching to at least anal-fin origin (vs. not reaching beyond pelvic-fin base) (Ref. 87871).
Biology: 
IUCN Red List Status: Data deficient (DD); Date assessed: 01 September 2018 Ref. (130435)
Threat to humans:  harmless
Country info:  Type locality, Narathiwat Province, Toh Daeng peat swamp, Khlong Pak Pla, NIFI 3074 (holotype of Pseudeutropius indigens, 6.71 cm SL). This species is known from the Toh Daeng peat swamp forest (within the Mae Nam Sungai Kolok drainage) in southern (peninsular) Thailand, and possibly present in river drainages northwards to the Isthmus of Kra as far north as the Tapi River (Ref. 87871).


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