RAIJIOLARIA ACANTHONIA 133 



ACANTHONIA MULLERI Hkl. 

 (Monogr. pag. 379 PI. XV fig. 3; XVIII fig. 9;. 



1898 February: b^ S. it" E. 



March: Azores; 11° N. 23° W.; 49" N. 18° W. 



Aj)n7: 41" N. 19" W.; 47° N. 40° W.; ;")()- N. 10" W. 



May: 48" \. 30° W.; 50" N. 14" W.; 61°— H2" N. 1° W.— 2" E. 



Atiyiist: 49° N. 14° W. 



September: 06° —57° N. 21°— 14" W.; 60° N. 3° W.; 72'"— 7(i" 



.\. 19"— 16" E. 

 October: 56- X. 12- W. 



Xoveiiiber- 52" N. 38" W.; 5()- \. 17"— 23" W. 

 December: Azores; 44'" N. 57° W. 



1899 January: Canaries; 18° N. 39" W. 

 March: 49" N. 9" W., common. 

 April: 49° X. 7° W., rare. 



June: 62° N. 1° E. 



August: 56" X. 14° \\'., rare. 



Siptetiilx'r: 56" — 57" .\. 17° — 16- W'., more or less rare; 56" X. 



23" W., rare; 53" X. 25" W , rare. 

 November: 51° X. 2H" W., rare. 



Temperature: I2.9, mean of 28 obs., max. 27.3, min. 5.s. 



Salinity: 35.37, mean of 27 obs., max. 36.,nii, min. 32.72. 



Plankton-type. Noted from Lhe Mediterranean. Its range of 

 distribution is essentially eastern, from 5° S. to the north of Xor- 

 way. — .S. 



ACANTHONIA MULTISPINA J. Mull. 



(Abh. 1858 PI. VII, fig. 6-9.) 



1898 March : 45" N. 40" W. 



Temperature: 14. 

 Salinity: 35.,,;i. 



Plankton-type. Mlillek found this species at Messina. H^ckel 

 mention.-? it from 3° N. 15° W. — Probaby N. 



