26 HAWAIIxVN AND OTHER PACIFIC ECHINI. 



GONIOCIDARIS Des. 



Goniocidaris biserialis Dod. 



Stephanocidaris biserialis Doil., 1885. Arch. f. Naturg. 51 Jahrg. T?d. I, p. 79. 

 Goniocidaris biserialis Dod., 1887. Jap. Seeigel, p. 10. Hs. V and VIII, tig. 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- 

 larire to be found, but both sorts of globiferous pedicellarioe occur. 



Tlie large globiferous pedicellariaj (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 lensxth, wliile the stalk is even 

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

 rather rare. 



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

 straighter, narrower, and with an evident end-tooth, and only .27-45 mm. 

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

 These pedicellarioe are abundant everywhere. 



Station 3700. Off Seno Umi, Suruga Gulf, Japan. 03 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 Dod., 1885. Arch. f. Naturg. 51 Jahrg. Bd. 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. They range in size from 6 mm. in 

 diameter to 18 mm. Three of the larger specimens showed the large disks 

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

 test is much flattened in young specimens, gradually increasing in heiglit 

 with age. The number of primary interambulacral plates is proportionately 



