18 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM 



Scales small, with strong triangular point and median keel, 

 smoother on under surface of body. In young scales all appear as 

 4-rooted tubercle with short apical cusp. 



First dorsal origin over or close behind hind basal edges of pec- 

 torals, spine 1% to 2% in first dorsal length which 1 to I14 in head ; 

 second dorsal origin midway between ventral origin and anal origin, 

 spine 11/2 to 1% in fin length, which 1% to 1% in head; anal origin 

 well behind hind basal end of second dorsal, base of fin 2 to 21/3 to 

 subcaudal origin, length of fin II/2 to 1% in head; subcaudal length 

 1% in caudal, 1 to lyV ii^ head; least depth of caudal peduncle 8^5 

 to 434 ; pectoral width 1% to 1% its length, which longer than head 

 to last gill opening in young or 1% in head to first gill opening in 

 adult ; ventral li/^ to II/2 ; claspers pointed, not quite reaching end 

 of inner ventral lobe of moderate sized example. 



Gray-brown above, paler to whitish below. Blackish-brown band 

 across interorbital and down over cheeks where expanded. Dark 

 diffuse band from occiput forking just before first dorsal with oblique 

 branch each side. Dark median interdorsal band. Young show 

 dark predorsal band forks with branch to pectoral base and main 

 branch reaches above ventral base. Also dark band along each side 

 of back above and back on caudal peduncle. Fin edges mostly paler 

 than median and basal areas. 



Queensland, New South Wales, South Australia, Victoria, West 

 Australia, Tasmania, New Zealand. Specimen from Port Jackson 

 in the Queensland Museum. 



U.S.N.M. No. 229G3. Sydney, New South Wales. Australian Museum. Length, 



890 mm. 



U.S.N.M. No. 29017, Port Jackson. Australian Museum. Two examples, 610 and 



1,000 mm., latter partly skinned out. 



U.S.N.M. No. 29018. Port Jackson. Australian Museum. Head, 160 mm. 



U.S.N.M. No. 39971. Port Jackson. Australian Museum. Length, 1,203 mm., 



skinned out. 



U.S.N.M. No. 39974. Port Jackson. D. G. Stead. Length, 745 mm., partly 



skinned out. 



U.S.N.M. No. 40006. Port Jackson. Australian Museum. Length, 458 mm. 



U.S.N.M. No. 40009. Port Jackson. Australian Museum. Length, 468 mm. 



U.S.N.M. No. 40012. Port Jackson. Australian Museum. Length, 223-242 mm. 



2 examples. 



U.S.N.M. No. 40043. Port Jackson. Australian Museum. Egg case. 



U.S.N.M. No. 40044. Port Jackson. Australian Museum. Egg case. 



U.S.N.M. No. 59855. Port Jackson. D. G. Stead. Length, 510 mm. 



HETERODONTUS JAPONICUS Dumeril 



Heterodontus philippi var. japonicus Dumeeil, Hist. Nat. Elasmobr., vol. 1, p. 



424, 1865 (type locality: Japan). 

 Cestracion japonicus Maclay and Macleay, Proc. Linn. Soc. New South Wales, 



vol. 8, p. 428, pi. 20, 1883 (Japan). — Ishikawa and Matsuura, Prelim. Cat. 



Fishes Mus. Tokyo, p. 61, 1897. — Regan, Ann. Mag. Nat. Hist., ser. 8, vol. 



1, p. 496, 1908 (Japan). 



