Author: Springer and Sadowsky, 1970
Field Marks:
A fairly small and slender catshark with scattered, small to large, wide-spaced round black spots on sides and back but no saddles, with small anterior nasal flaps that end in front of mouth, no nasoral grooves, labial furrows on lower jaw only, and second dorsal fin much smaller than first.
Diagnositic Features:
Head and body relatively deep, slender and fairly narrow; greatest width of head about 2/3 of head length; no nasoral grooves; anterior nasal flaps not expanded and falling short of mouth. First dorsal origin slightly behind pelvic insertions; second dorsal origin over last half of pelvic bases; interdorsal space greater than anal base. Denticles fairly large and erect, skin relatively rough. Colour pattern of sparse, wide-spaced, nearly round black spots, varying from smaller to much larger than eye pupil, sometimes with light centres; no white spots or prominent saddles. Size apparently small, to 47 cm.
Geographical Distribution:
Western South Atlantic: Northern Uruguay. 3
Habitat and Biology:
A little-known bottom-dwelling shark found on the2 outer continental shelf at 140 to 190 m depth.
Size:
Maximum 47 cm (adult males).
Interest to Fisheries:
None.
Type material:
Holotype: U.S. National Museum of Natural History, USNM 204376, 385 mm female. Type Locality: 33 26'5, 51°21'W, off Uruguay, western South Atlantic, 190 m depth.