U\H RADlOLAJilA — llVSTRICHA^l^IS, ICOSASl'IS 



HYSTRICHASPIS PECTINATA IIkl 



(Chall. pag. 822 PI. C.W.Will lig. 8.1 



1S9S Mar<-/r. 'r S. 10' W.; 3" N. 10 W. 



October: Azores. 



Ih'ceinhcr: 18° N. i5T AV. 

 ISUl) Fch/'iiari/: 32= N. 47' W. 



J/'//r: f)- S. 17' W. 



Temperature: 21.s, mean of (> ol)s., jna.\. 2S, uiin. 19. .s. 

 Salinity: ;)0..-,i, mean of obs., max. 06. lo, min. 3i-.«. 

 Plankton-type. Noted from the region of Sierra Leone. — 1). 



ICOSASPIS ELEGANS IIkl. 



(Chall. pag. Sii I'l. CXX.Wl lig. 4.) 



1898 Frh/-i/a/\i/: 5" S. 4" K. 

 Ap/-i/: Vr N. 70' W. 

 iWft//: 32- N. 37' W. 



Temperature: 21.4 to 28. 



Salinity: 34.12 to 3().a.s. 



Plankton-type. Found from Ancencion to the Canaries. — S.? 



ICOSASPIS TABULATA JIkl. 



(Chall. pag. 8i-3 PI. CXX.Wl lig. 2. 

 1S9S Ociohrr: 5(r N. 10" W. 



Temperature: 12. 

 Salinity: 35. io. 



Plankton-type. F(nmd in the north Paeilic, l)etween .Japan 

 and San Francisco, abysmal. — N. V 



ICOSASPIS TETRAGONOPA IIkl. 

 inali'tiiniKtiidiiiiii :\Ionogr. IM. .\Xli lig. 13.) 



1898 Marrlr. 23' N. 28 W. 



Temperature: 20. 



Salinity: .)t).;ii. 



Plankton-type. Found in tlie IMeilitorranean. — N. V 



