26 HAWAIIAN AND OTHEE PACIFIC ECHIXI. 



GoxiociDAEis Des. 

 Goniocidaris biserialis D5d. 



Stephanocidaris biserialis Dod., 1885. Arch. f. Naturg. 51 Jahrg. Bd. I, p. 79. 

 Goniocidaris biserialis Dod., 1887. Jap. Seeigel, p. 10. Pis. V and YIII, fig. 8. 



Plate 10, figs. 22-25. 



Specimens of G. biserialis Doderlein from 17 to 30 mm. in diameter were 

 collected at the stations given below. They agree well with the figures given 

 by Doderlein on Plate V of his Memoir. There are no tridentate pedicel- 

 larise to be found, but both sorts of globiferous pedicellariae occur. 



The large globiferous pedicellarioB (PI. 10, figs. 22, 23) are short and 

 broad, with a large terminal opening much as in Cidaris. The valves are 

 somewhat curved and are about .55 mm. in length, while the stalk is even 

 shorter. These pedicellariaa are found only on the interambulacra and are 

 rather rare. 



The small globiferous pedicellariae (PI. 10, figs. 2^, 25) have the valves 

 straighter, narrower, and with an evident end-tooth, and only .27-.4o mm. 

 in length. The stalk may be shorter or longer, sometimes twice as long. 

 These pedicellariae are abundant everywhere. 



Station 3700. Off Seno Umi, Suruga Gulf, Japan. 63 fathoms. Vol. m. s. 



Station 3707. Off Ose Zaki, Suruga Gulf, Japan. 63-75 fathoms. 

 Vol. s. a. g. 



Station 3718. Off Ose Zaki, Suruga Gulf, Japan. 65 fathoms. Vol. 

 s. sh. r. 



Bathymetrical range, 63-75 fathoms. Seven specimens. 



Goniocidaris clypeata Dod. 



Goniocidaris clypeata Diid., 1885. Arch. f. Naturg. 51 Jahrg. Rd. I, p. 82; 1887, 



Jap. Seeigel, p. 13. Pis. VI and VIII, fig. 7. 



Plate 10, figs. 27-31. 

 A number of specimens of this species were collected by the "Albatross" 

 in Japan at the stations given below. Tliey range in size from G mm. in 

 (liaiuetcr lo 18 mm. Three of tlie larger specimens showed tlie large disks 

 figured by Doderlein at tlie extremity of the primary abactinal spines. The 

 test is mucli Uatteued in young specimens, gradually increa.sing in height 

 with age. The number of primary interambulacral plates is proportionately 



