Zoology of Barents Sea. 257 



Rab. Marine, on hard objects. 



Loc. Barents Sea, near S.W. end of Novaya Zemlya, in 

 lat. 71° 6' N., long. 50° E. 31st July, 1879. Depth 

 62 fathoms. 



Obs. Both these sponges are monticular in form, but speci- 

 fically different, as will be seen in comparing the above de- 

 scriptions. Suberites montalbidus, however, is, with the ex- 

 ception of form and slight differences in the spiculation, the 

 same as Suberites domuncula, Sdt.,= Halichondria suberea, 

 Johnston, common on the British shores. The differences in 

 spiculation chiefly consist in the pinlike spicules of the former 

 not having such a globular or defined head, and the rlesh- 

 spicule for the most part being pointed at each end instead of 

 obtuse. Marenzeller mentions the following species collected 

 by the Austro-Hungarian expedition : — 



Cacospongia Schmidtii, Mar. ; Chalinula cavernosa, Mar. 

 Isodictya tenera, Mar. ; Stylocordyla longissima, G. O. Sars 

 Thecophora semisuberit.es, Schm., and T. elongata, Mar. 

 Rinalda uberrima, Schm.; Halicnemia hemisphcerica, M. Sars 

 Microciona ambigua, Bowbk. ; Cladorhiza abyssicola, M 

 Sars; Ascetta coriacea, Mont. ; Sy caltis glacialis, Hack.; and 

 Sycandra utriculus, Schm. 



HYDROZOA. 



The Rev. Thomas Hincks, B.A., F.R.S., has drawn up the 

 following list of the Hydrozoa : — 



Order HYDROIDA. 



Suborder Athecata. 



Genus Myriothela, Sars. 



? Myriothela phrygia, Fabricius. 

 [Not M. phrygia of Allman and Hincks.] 



This is distinct from the British species, and probably iden- 

 tical with Lucernaria phrygia of Fabricius. 



Lat. 71° 6' N., long. 50° E. Near S.W. end of Novaya 

 Zemlya, 62 fras. [Greenland (Fabr.), Norway (Sars) ; off 

 Halifax, N. S., in 52 fms. (Verrill).] 



Genus Eudendrium, Ehrenberg. 



Eudendrium ? sp. 



A fragment only occurs, which does not enable me to de- 

 termine the species. The stem is compound below, but simple 



