62 HAWAIIAN AND OTHER PACIFIC ECHINI. 



Glassy tubercles insignificant. Madreporic pore smaller than a genital pore. 

 Color of bare test, pale brown. 



The holotype is from Station 3846. 



Although rather closely allied to E. minutus of Europe, this species is easily 

 distinguished by its narrow test. Several of the specimens from Hawaii, which 

 I refer to this species, are very young. One of these, a bare test, shows consider- 

 able resemblance to E. megapcialus, as the apical system is nearly central. 

 Two other specimens are clothed in their natural coat of spines ; the color is pale 

 yellowish brown; the primaries are about twice as long as the miliaries and 

 neither are peculiar; no pedicellariae were found. There are two bare tests 

 of this species, from Guam, in the M. C. Z. collection. 



The Hawaiian specimens were taken at the following places: — 



Station 3846. Off Lae-o Ka Laau Light, Molokai, Hawaiian Islands. 

 Bott. temp. 71.5°. 60-64 fms. Crs. br. s, sh., gr. 



Station 4064. Off Kauhola Light, Hawaii, H. I. Bott. temp. 69°. 63- 

 107 fms. Vol. s., for., co. 



Station 4148. Off Modu Manu, H. L Bott. temp. 77.9°. 26-33 fms. 

 Co. s., for. 



Bathymetrical range, 26-107 fms. Extremes of temperature, 77.9°-69°. 



Six specimens. 



Echinocyamus crispus. 



Mazetti, 1895. Mem. Reg. Accad. Sci. Modena, ser. 2, 10, p. 215. 



Although originally described from the Red Sea, this species seems to be 

 common in the East Indies, where the Siboga took it at many stations. 



Echinocyamus elegans. 



Mazetti, 1895. Mem. Reg. Accad. Sci. Modena, ser. 2, 10, p. 216. 



This is another Red Sea species, but it has not yet been taken elsewhere 

 and its validity as a good species is open to considerable question. 



Echinocyamus scaber. 



De Meijere, 1903. Tijdsch. Xederland Dierk. Ver., ser. 2, 8. p. 5. 



I have nothing to add to de Meijere's full account of this species given in 

 his report on the Siboga Echini (1904). The Hawaiian specimens agree very 



