58 HAWAIIAN AND OTHER PACIFIC ECHINI. 



Fibularia acuta. 



Yoshiwara, 189S. Ann. Zool. Japon., 2, p. 60. 



Plate 126, figs. 1-^. 



Through the great courtesy of Dr. Cioto in sending me one of Yoshiwara's 

 type specimens, I am able to supplement his description with figures. There 

 seems to he no doubt of the distinctness of this species, for the shape of the test 

 is quite unlike that of any of the numerous forms of craniolaris. The specimen 

 figured was taken at Asamiwan, Tsu-shima, in Korea Strait. 



Fibularia volva. 



Agassiz and Desor, 1847. Ann. Sci. Nat., ser. 3, 7, p. 142. 



This species has the mdest known range of any member of the genus. 

 There are specimens in the M. C. Z. collection from the Red Sea, Japan, the 

 Kei Islands, and Torres Strait. 



Fibularia cribellum. 



De Meijere. 1903. Tijdschr. Nederland Dierk. Ver., ser. 2, 8, p. 7. 



The SiBOGA took six specimens of this species at six very widely separated 

 points in the Dutch East Indies, but apparently they were all bare tests for 

 de Meijere makes no reference to either spines or pedicellariae. 



Fibularia nutriens. 



H. L. Clark, 1909. Mem. Austr. IMu.s., 4. p. 557. 



This, the smallest known species of echinoid, has been recorded only from 

 the coast of New South Wales. In the original description I recorded it as the 

 only clypeastroid known in which the test of the female was modified for the 

 purpose of caring for the j'oung. Dr. F. A. Bather promptly called my atten- 

 tion to a paper by Dr. T. S. Hall On the occurrence of a marsupium in an 

 echinoid belonging to the genus ScuteUina, (1908, Proc. Roy. Soc. Victoria, 

 new ser., 20, p. 140-142). The marsupium in ScutelUna is on the oral smiace 

 anterior to the mouth and hence very different from the one in F. nutriens. 



