11-i BULLETIN : MUSEUM OF COMPARATIVE ZOOLOGY. 



simply dirty whitish or have a reddish cast ; they are decidedly brightest on the 

 bare abactinal surface, where they are noticeably small but fairly abundant. 

 Station 4807. Between Hakodate and Sado Island, Japan, 44-47 fathoms. 



" 4S03. Between Hakodate and Sado Island, Japan, 47 fathoms. 



" 4815. Between Hakodate and Sado Island, Japan, 70 fathoms. 



". 4817. Between Hakodate and Sado Island, Japan, 61 fathoms. 



" 4832. Between Nanao and Tsuruga, Hondo, Japan, 76-79 fathoms. 



" 4833. Between Nanao and Tsuruga, Hondo, Japan, 79 fathoms. 



" 4812. Between Dogo Island and Matsu Sliima, Japan, 82 fathoins. 



" 4S76. Eastern Channel, Korea Strait, 59 fathoms. 



" 5092. Uraga Strait, Gulf of Tokyo, 70 fathoms. 



" 5094. Uraga Strait, Gulf of Tokyo, 8S fathoms. 

 .Forty-nine specimens. 



Goniocidaris biserialis Dod. 



Stephanocidaris biserialis Duderlein, 1885. Arch. f. Naturg., 51, Bd. 1, p. 79. 

 Goniocidaris biserialis Doderlein, 1887. Jap. Seeigel, p. 10. Taf. 5 ; Taf. 8, fig. 8. 



A very good series of this species was taken, ranging in size from 7 to 27 mm. 

 The color shows considerable diversity, as the test and small spines may be yellow, 

 olive-green, brown, or brownish-red. The primaries are uniformly dull, but they 

 are more or less encrusted with sponges, bryozoans, worm-tubes, etc., and the color 

 is thus often considerably modified. 



Station 4S75. Eastern channel, Korea Strait, 59 fathoms. 

 " 4876. Eastern channel, Korea Strait, 59 fathoms. 

 " 4877. Eastern channel, Korea Strait, 59 fathoms. 

 " 4879. Eastern channel, Korea Strait, 59 fathoms. 

 " 4S93. Southwest of Goto Islands, Japan, 95-106 fathoms. 

 " 4894. Southwest of Goto Islands, Japan, 95 fathoms. 

 " 4895. Southwest of Goto Islands, Japan, 95 fathoms. 

 " 4936. Off Kagoshima Gulf, Japan, 103 fathoms. 

 Thirty-six specimens. 



Goniocidaris clypeata D° D . 



Goniocidaris clypeata Doderlein, 1885. Arch. f. Naturg., 51, Bd. 1, p. 82. 



A good series of this curious species, ranging from 7 to 20 mm. in diameter, was 

 taken, some of which are remarkably like some specimens oiflorigera. There seem 

 to be, however, constant differences between the two species. The remarkable diver- 

 sity revealed by the primary spines of these specimens is noteworthy, for some are ta- 

 pering, only slightly thorny, and not at all expanded at either base or tip (young spines 

 may even be perfectly smooth and tapering), while others, more or less conspicu- 

 ously prickly, are expanded either at the base or at the tip or at both, and all kinds 

 of intermediate types occur. The color of the test is usually reddish-brown, but may 

 be much lighter. The secondary spines are light brownish. The primaries are gray 



