284 liIATd.MACKJv -AHTKOJII'riAf.US 



ASTEROMPHALUS HOOKERI Ehb. 



(.1. atUdifirns Ci.. Kongl. Sv. Vet. Akad. Handl. Vol. XXXIV n. 1 pag. Ill 



PI. VIII fig. 7-9.) 



1898 FrhriKinj: (iO — 61° N. Il^^—fy W. 

 Juiif. 6.5- N. 31° W. 

 July: 78" N. 3° W. (deep .sea haul). 



Temperature: o.o, mean of 8 obs., max. 7.n, inin. 3.u. 



Salinity: 34. io, mean of 7 obs., max. 35.-,.i, min. 33. i?. 



Plankton-type. Noted from the northern Atlantic, usually 

 in Tricho- or r/iffto-plankton. It was not very rare in 1896 west 

 of Spitzbergen, but extremely rare in 1898 and 1899. — T. 



Remark. This species occurs abundantly in the southern At- 

 lantic and southern Indian Ocean. It is perhaps a variety of .1. 

 Brookd (Grev. T. Mic. Soc. Vol. VIII 1860 PI. 1\' fig. 18), which 

 has been found in soundings from Kamtschatka. 



ASTEROMPHALUS HEPTACTIS Ralfs.i 

 (k. Schm. Atl. PI. XXXVIII fig. 5-8.) 



1898 March: area between 44^ N. 17' W, 49^ N. 18 W., 55- N. 



12° W. and 45° N. 13" W.; 63° N. 2° E. 

 April: area between 39° N. 24- W., 50° N. 9- W and 49- 



N. 23° W.; 62° N. 2" E. 

 May: 50° N. 22" W. 

 Jaly: 40- N. 58° and 67' AV. 

 August: 60' N. 3' W. 

 Scpiciiiber: 59° N. 2° W. 

 October: 59- N. 1° W. 

 X'lvcmber: area between 56° N. 36° W., 55 N. 21° W. and 



56° N. 23° W.; 9° S. 34° W. 

 December: 26° S. 45° W. 



1899 April: 46° N. 13° W. 

 November: 51° N. 13° W. 



Temperature: 13.6, mean of 21 obs., max. 28, min. 7.s. 

 Salinity: 35.s5, mean of 19 obs, max. 37. ji, min. 33.,s.s. 

 Plankton-type: S. 



Ostenfeld's data not used. 



