Pseudexostoma yunnanense (Tchang, 1935)
photo by CAFS

Family:  Sisoridae (Sisorid catfishes), subfamily: Glyptosterninae
Max. size:  11.1 cm SL (male/unsexed)
Environment:  demersal; freshwater
Distribution:  Asia: known only from the upper Dayinjiang (an upper branch of the Irrawaddy River), China.
Diagnosis:  Dorsal soft rays (total): 5-5; Anal soft rays: 3-4. This species is distinguished from Pseudexostoma brachysoma and P. longipterus by the following characters: posterior margin of lower lip with 3 notches, depth of middle one the same as lateral ones lateral ones (vs. shallower), length of 2 smaller median lobes of lower lip the same length as lateral lobes (vs. longer); pelvic fin I, 1-5 (vs. I, 3-4); base iof adipose fin shorter, 28.8-39.8% SL (vs. 36.1-46.0); caudal peduncle deeper, depth 6.4-8.3% SL, 32.6-42.7% in length of caudal peduncle (vs. 4.2-6.9 in depth and 20-33.7 in length); premaxillary tooth band with 18-22 teeth (vs. 16-18), it is divided into 2 and are connected partially (vs. isolated) (Ref. 57980).
Biology: 
IUCN Red List Status: Not Evaluated (N.E.) Ref. (130435)
Threat to humans:  harmless
Country info:   
 


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