RADIOLARIA — HELIOSPH.IIKA, HEXACOXTIUil 163 



Plankton-type. Noted from the Mediterranean, the AllanLic, 

 and the Ganaiies. — I). 



HELIOSPH^ffilRA MINUTA Cl. 



(K. Sv. Vet. Akad. Hand). Vol. XXXIV n. 1 PI. VI fig. 2.) 



1S98 March: 4V N. 21"— 23^ W.; 19' N. 18" W.; ()2- N. 11= \V 



Aiifjnst: 17° i\. 71° W. 



Temperature: 11.?, mean of 4 obs., max. 14.9, min. 8, exrpp- 

 tionally 27.2. 



Salinity: 35.G3, mean of 3 obs., max. 35. .st, min. 35.8?. 



Plankton-type: S. y 



HEXACONTIUM ARMATUM Cl. 



(K. Sv. Vet. Akad. Handl. Vol. XXXIV n. 1 PI, VI fig. b.) 

 1898 Xorrnihtr: ^(r X. 17° W. 



Temperature: 11..;. 

 Salinity: 35.2?. 

 Plankton-type: S. 



HEXACONTIUM ASTERACANTHION Ukl. 



aionogr. pag. 441 PI. XXII I fig. 5—6. The fig. 22 PI. V) in V.vnuoffen's D. 



Fauna u. Flora Grcinlands, which has erroneously been named Ilcidfonr/ic lie.ra- 



cantha, probably represents this species.) 



1898 March. 62° N. 2 E. 



1899 Noccu^ur: 51° N. 21° and 28' W. 



Temperature: 7.j (one obs.). 

 Salinity: 35.i3 (one obs.). 



Plankton-type. Found in the AHantic, Mediterranean and 

 Pacific. ."My specimens were found in Styli-i)lankton. — .S'. ? 



