Silurichthys ligneolus Ng & Tan, 2011
Brown leaf catfish
Silurichthys ligneolus
photo by Ng, H.H.

Family:  Siluridae (Sheatfishes)
Max. size:  5.53 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater
Distribution:  Asia: Indonesia (southern Borneo).
Diagnosis:  Dorsal soft rays (total): 2-2; Anal soft rays: 44-45; Vertebrae: 46-48. This species is distinguished from congeners in having the following set of characters: depth at anus 9.1-11.0% SL; caudal peduncle depth 4.7-5.5% SL; eye diameter 6.7-9.8% HL; pelvic fins present; anal-fin rays 44-45; principal rays on the lower caudal-fin lobe 3-4, lower lobe of caudal fin indistinct; vertebrae 46-48; one gill raker on the first branchial arch; body uniformly brown. Based on the morphology of its caudal fin, this species is hypothesized to be the sister taxon of S. sanguineus (Ref. .86600).
Biology: 
IUCN Red List Status: Vulnerable (VU); Date assessed: 30 May 2019 (D2) Ref. (130435)
Threat to humans:  harmless


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