20 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM 



pectoral. Spiracle moderate, little less than pupil, close below and 

 opposite hind edge. 



Scales small, tridentate, with strong median keel and one each 

 side ; on under surface of body and fins scales often simply triangular 

 and with median keel. 



First dorsal origin over hind basal portion of pectoral spine 2% 

 to 3 in fin length which 1 in head, equals head to fifth gill opening 

 in young; second dorsal inserted midway between hind basal end of 

 ventral and anal origin, spine V/g to 2 in fin length which 1 to 1% 

 in head; anal origin opposite hind basal end of second dorsal, base 

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

 subcaudal 1% to 1% in caudal length, li/io to 1% in head; least 

 depth of caudal peduncle 4 to 5; pectoral width 1% to 1% in its 

 length, which equals head to fifth gill opening, though much longer 

 in young; ventral II/3 to 1% in head; claspers of medium sized 

 examples not reaching beyond ventrals. 



Russet brown largely, with darker cloudings on head and snout. 

 Under surface of body whitish. Often about 8 to 10 darker ob- 

 scurely defined or diffuse transverse bands over head, back and tail. 

 Intervening paler areas also with narrow dark bands, often variable 

 or broken as blotches and spots. Fins clouded darker on terminal 

 portions. 



Japan, Korea, China, East Africa. Garman's distinction of the 

 "base of anal about one and one fourth times its length from that 

 of caudal" will not hold, as my smaller examples show 1% to 1%. 



U.S.N.M. No. 37982. East Africa. N. M. Ferebee. Length, 457 mm. This 

 example is of exceptional interest in view of its remote geographical loca- 

 tion. On comparison with the other Japanese specimens there is no question 

 of its identity. Its supraorbital ridges and coloration are entirely similar ; 

 moreover the length of the anal is contained li/^ times in the space to the 

 subcaudal origin. In view of this determination it is quite possible that 

 Heterodontus honae spei Ogilby may pertain to the present species rather 

 than to Heterodontus pJiilippi with which Barnard seems to think it may 

 belong. The type of Heterodontus honae spei in the Queensland Museum, No. 

 1.1587, jaws only, from Table Bay, South Africa. 



U.S.N.M. No. 22609. Awa, Japan. Japanese Government. Length, 525 mm. 



U.S.N.M. No. 38839. Japan (?). P. L. Jouy. Length, 380 mm. 



U.S.N.M. No. 39889. Japan. Prof. E. S. Morse. Length, 195-388 mm. 1878. 

 2 examples. 



U.S.N.M. No. 50730. Misaki, Sagami. Jordan and Snyder. Length, 317 mm. 



U.S.N.M. No. 51292. Tokyo. Jordan and Snyder. Length, 495 mm. 



U.S.N.M. No. 71764. Misaki. Alhatross collection, 1906. Length, 305 mm. 



U.S.N.M. No. 71831. Tokyo market. Albatross collection, 1906. Length, 394 mm. 



U.S.N.M. No. 75954. "Japan." P. L. Jouy. Length, 563 mm. 



U.S.N.M. No. 86004. Foochow, China. A. de C. Sowerby. 



