454 



the fibres form in the middle a kind of axis, and from here 

 the fibres go to the surface ; these facts are also noted by 

 Vosmaer. I think it certain that the specimens belong to S. 

 carnosus, it is quite agreeing with the form rmnosus of this 

 species, and with regard to this form of the sponge Top sent 

 1. с declares, that the skeleton is constructed in a similar way 

 as described above. Thus Suberites carnosus seems to occur 

 in the arctic seas only in the form ramosus. 



At Angmagsalik ^^h 1900, depth 140 fathoms (The Am- 

 drup-expedition 1900). 



S. sp. 



We have a small specimen of a not yet determined species 

 of Suberites. 



74° 17' lat. N., 1 5° 20' long. W., depth 127 fathoms (The 

 Ryder-expedition 1891-92). 



TetractinelUda. 



Sigmatophora. 



Fam. Tetillidae. 



Craniella 0. Schmidt. 



С cranium 0. F. Müll. 



1789. Älcyonium cranium Müller, Zool. Dan. IV, 42, Tab. CLVII, Fig. 1—2. 

 1885. Craniella Mülleri Vosmaer, Bijdr. tot de Dierk. 12te All. 3die Gedeelte, 



6, PI. II, figs. 9—15, PI. V, figs. 1—2. 

 1888. Craniella cranium, Sollas, Challeng. Rep. XXV, 51. 



Of this species there has been collected a rather great 

 material; the specimens are very varying in size; the largest 

 one, which is of ellipsoidal shape, is 60 mm high, and then 

 there are all sizes down to not more than 1 mm in diameter. 



70° 32' lat.N., 8° 10' long. W. '^^/e 1891, depth 470 fathoms; 

 72° 25' lat.N., 19° 33' long. W., '^^h 1891, depth 140 fathoms 

 (The Ryder-expedition 1891—92); East-Greenland, depth about 

 350 fathoms (The Swedish arctic expedition 1883; Fristedt I.e.). 



