204 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM 



Oaleus cmtarcticus Waite, Mem. Australian Mus., vol. 4, p. 33, 1899 (New 

 South Wales) ; Rec. Australian Mus., vol. 4, p. 175, fig. 19, 1902 (fetus and 

 shell gland). 



Oaleorhinus antarcticus Gasman, Mem, Mus. Comp. Zool., vol. 36, p. 175, 1913 

 (Melbourne). — Waite and McCuu,och, Trans. Roy. Soc. South Australia, 

 vol. 39, p. 459, 1915 (Great Australian Bight in 86-94 fathoms). 



Mustelus vulgaris (not Miiller and Henle) Gray, List fish British Museum, 

 p. 56 1851 (Antarctic Expedition). 



Mustelus laevis (not Risso) Kneb, Reise No vara, Fische, p. 415, 1865 (Auck- 

 land). 



Depth 7 to 7% to subcaudal origin; head 41^ to 4%, width 1% to 

 1^. Snout 21/4 to 21/2 in head, rather obtusely rounded as seen from 

 above; eye 4% to 53^, twice long as deep, 2 to 21/3 in snout, 2l^ to 

 2l^ in interorbital ; dentary width 3 to 3% in head, length I14 to 1% 

 its width, with deep labial grooves, upper longer or not quite half 

 jaw length; teeth in 60 rows in jaws, smooth, broader than long; 

 nostrils much nearer mouth than snout end, width II/2 in internarial, 

 front valve triangular ; interorbital 2% to 2% in head, broad, convex. 

 Gill openings with last 2 or 3 closer together, second and third larg- 

 est, fourth and fifth above pectoral base. Spiracle small, level with 

 eye and about 14 eye diameter posterior. 



Scales very small, end in single point, tricarinate. 



First dorsal origin opposite inner angle of depressed pectoral, front 

 edge 1% to 1% in head; second dorsal origin nearer that of ventral 

 than subcaudal lobe origin, front edge 1% to 2 in head ; anal inserted 

 opposite first % or % of second dorsal base, front edge 21^ to 2% 

 in head; subcaudal length li^ to IV3, front edge 1% to 21/3 in its 

 length; least depth of caudal peduncle 6I/2 to 7 in head; pectoral 

 length 11/4 to 11/3, width 11/3 to 1% its length; ventral length 1% to 

 1% in head; claspers narrow, slender, pointed, extend little beyond 

 ventrals. 



Gray or gray-brown above, under surfaces whitish. 



South Australia, Victoria, New South Wales, Tasmania, New Zea- 

 land. 



U.S.N.M. No. 39675. New Zealand. Otago University. Length, 405 mm. 

 U.S.N.M. No. 40023. Port Jackson. Australian Museum. Length, 440 mm. 



MUSTELUS CANIS (Mitchill) 



Sgualus canis Mitchill, Trans. Literary Philos. Soc. New York, vol. 1, p. 486, 



1815 (type locality: New York). 

 Mustelus canis Baknabd, Ann. South African Mus., vol. 21, pt. 1, p. 30, 1925 



(Natal).— Norman, Discovery Rep., vol. 12, p. 36, 1935 (lat. 33°53' S., long, 



17°39' E., in 310 m.). — Fowler, Bull. Amer. Mus. Nat. Hist.; vol. 70, pt. 1, 



p. 61, fig. 16, 1936 (New Jersey). 

 Mustelus vulgaris Cloqitet, Diet. Sci. Nat., vol. 14, p. 406, 1819 (on Oaleus laevis 



Rondelet, Pise. p. 375, 1554, type locality: Europe). 



