Author: Chu and Hu, 1981
An Apristurus with a pointed, angular prenasal snout, gill septa with short medial projections, first dorsal fin about half as large as second and with its origin over last quarter of pelvic bases.
Body relatively slender, trunk moderately tapering toward head. Snout moderately long, basally broad but distally pointed and angular, preoral snout about 10% of total length; gill slits moderate- sized, somewhat less than eye length; gill septa with small projecting medial lobes, without pleats and incised margins; eyes small in adults, about 3% of total length; nostrils broad, their width about equal to internarial space; incurrent and excurrent apertures fairly large and oval, anterior nasal flaps low and angular; mouth moderately long and large, broadly arched, with dental bands hardly expanded and with lower ones falling just behind uppers; mouth and labial furrows extending little in front of eyes; labial folds not enlarged, with lowers diagonal to body axis; mouth and teeth probably not enlarged in males. Interdorsal space about twice the first dorsal base, slightly less than preorbital snout; first dorsal fin about half as large as second, base of first dorsal about two-thirds of second; origin of first dorsal opposite last fourth of pelvic bases; second dorsal insertion well in front of anal insertion; pectoral fins rather small, anterior margins about 12% of total length; inner margins moderately long, about half the length of pectoral bases; interspace between pectoral and pelvic bases moderately long, slightly less than prebranchial length and about 16% of total length; pelvic fins low and subangular; anal fin long, fairly high, and angular, about four times as long as high, its base about equal to prebranchial space and about 17% of total length; caudal fin moderately broad but somewhat elongated, presence of dorsal crest of enlarged denticles uncertain. Lateral trunk denticles of body with crowns partly elevated and close-set, skin surface possibly with a feltlike or fuzzy texture. Colour dark, with no conspicuous markings. Adult size unknown.
Known only from the type locality, the South China Sea (off the Chinese coast?) in 537 m depth.
Habitat and Biology:
A poorly known catshark from the South China Sea in 537 m depth, presumably caught on or near the bottom.
The holotype and only known specimen is a 41.7 cm immature or adolescent male, so the species presumably reaches at least 50 cm or more total length.
Interest to Fisheries:
Holotype: South China Sea Fisheries Research Institute, SCSFRS 00099, 417 mm, immature or adolescent male. Type Locality: South China Sea (off China ?) 537 m depth.