Florida Museum of Natural History

Acrochordonichthys strigosus

Acrochordonichthys strigosus

Photo by H. H. Tan
Kapuas River drainage in Borneo
Holotype, 83.5 mm SL, MZB 9333


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Acrochordonichthys strigosus Ng & Ng 2001

Identification: Acrochordonichthys strigosus has a moderately compressed body, a comparatively narrow depressed head (20-21% SL), a slender caudal peduncle (4-5% SL), a thick humeral process (maximum width = 13-18% length), an angular anterior margin on the anal fin, and a rounded posterior margin on the adipose fin. The head is covered with small, indistinct tubercles. Tubercles on the body are arranged in 5-6 horizontal rows on each side. The dorsal and lateral surfaces of the head and body are brown. Many large dark brown spots are randomly scattered on the dorsal surface of the head and body. The belly, chest and ventral surfaces of the head are cream-colored and lack spots. The dorsal, pectoral, pelvic and anal fins are cream-colored with a dark brown band near the edge. The cream-colored caudal fin has a dark brown band near the edge and a dark brown patch at the base of the caudal peduncle. The cream-colored barbels and pectoral spines have dark brown spots on the dorsal surfaces. The premaxillary toothband is not exposed when the mouth is closed. The stout pectoral spine has 6-7 large serrations on the posterior edge. There are 5 branchiostegal rays, 40 vertebrae, and a short thick genital papilla on the male.

Range: This species is found in the Kapuas River drainage in western Borneo.

Habitat: A. strigosus is found among woody debris in current in creeks and small to medium-sized rivers.

Similar species: A. ischnosoma, A. guttatus, A. mahakamensis and A. septentrionalis have an angular posterior margin on the adipose fin, a deeper body and a more slender caudal peduncle. Males of these four species have longer and thinner genital papilla.

Information from Ng, H. H. and P. K. L. Ng. 2001. A revision of the akysid catfish genus Acrochordonichthys Bleeker. Journal of Fish Biology 58: 386-418.


Acrochordonichthys strigosus map

Distribution Map