Ki'S IIADIOLAHIA — U\'ST1U(;HAS1'IS, ICOSASi'IK 



HYSTRICHASPIS PECTIN AT A Hkl. 



(Cliall. pat;-. «22 PI. CXXXVni lisi. 8.) 



iSiKS March: i S. 10 W.; H N. Ki W 



( )(i()})i'r: i\/()ros. 



Ihrrnibcr: l!~!- N. 67° W. 

 18U9 Febntan/: :i2 K. 47° W. 



J?(//c: ;-)" S. 17° W, 



Temperature: 2l.s, mean of (i obs., max. L^s, min. 19. s. 

 Salinity: SS-.^ii, mean of li obs., max. 36. 19, min. 34.8. 

 Plankton-type. Noted from the region (if Siena Leone. — I). 



ICOSASPIS ELEGANS Hkl. 



(Cliall. pag. 844 Tl. CXXXVI fig. 4.) 



1898 Frhrunri/: :t S. 4' iv 

 April: hP N. 70" W. 

 J7«//: 3:2° X. 37° W. 



Temperature: 21. i to 28. 



Salinity: 34.ii to 36.:;s. 



Plankton-type. Found from Ascencion to the Canaries. — .s. y 



ICOSASPIS TABULATA Hkl. 



(Chall. pag. 843 PI. CXXXVI fig. 2.V.. 

 ]89.S Ortnhrr: oVr N. 10^ W 



Temperature: 12. 



Salinity: 35. ki. 



Plankton-type. Found in the north Pacific, between Japan 

 and San Francisco, abysmal. — N. V 



ICOSASPIS TETRAGONOPA Hkl. 



■lluliniiiiiiaiiiliiiiii ^loiiORr. PI. XXH lig. 13.) 



1898 March: 23^ N. 28 M^ 

 Temperature: 2o. 

 Salinity: 36.9i. 

 Plankton-type. Found in the Mediterranean. — .S. V 



