502 



REVISION OP THE AXINELLID^, ii., 



mas Island by Kirkpatrick(21) as BesmaceUa sp., in which the 

 megascleres are oxea, fewer styli, and rare strongyla, all of 

 approximately the same dimensions (viz, 180 x 7/i, 150 x 9fi, and 

 126 X 6/x respectively), and the microscleres are very rare sigmata, 

 rare toxa, and . rare trichites; but in which the skeleton is a 

 unispicular renieroid meshwork, with triangular and quadran- 

 gular meshes. Obviously, if the microscleres are really proper 

 to it, this species should be assigned, provisionally at least, to 

 the genus Gellius. 



The genus Biemna, as now defined, accordingly comprises the 

 following species : — 



i. With commata - typical species of the genus. 



/>'. i^eachi Bowerbank(l; 30). English Channel; Scotland; 



off Norway: off Iceland. 

 B. capillifera Levinsen(28; 30). E. Canada; Iceland; Kara 



Sea. 

 B. Aami/era Lundbeck (30). Off Iceland. 



/)'. groenlandica Fristedt(10; 30). E. Coast of Greenland. 



B. stellifera Fristedt(9). (With Sweden. 



asters?). 

 B. fistulosa Topsent(48; 54). Amboina. 



B. sp. Thiele(41). Ternate. 



ii. Without commata (so far as known), and without micro- 

 strongyla; but apparently otherwise conforming rather to the 

 species with commata. 



B. Iwrenii Schmidt(35;40). Off Norway. 



B. variantia Bowerbank(l). Bristol Channel. 



{^.)B. {l)caveruula Bowerbank(l). Shetland Islands. 



B. trirhaphis Topsent(48; 41). Amboina; Ternate. 



{^.)B. fords Topsent(48). Amboina. 



iii. Without commata (so far as known), and without micro- 

 strongyla; but apparently otherwise conforming rather to the 

 species with microstrongyla. 



B. incrustans Kirkpatrick(20). Cape Colony. 



B. tubulata Dendy(8). Cevlon. 



B. macrorhaphis Hentschel(l6). Antarctic Ocean. 



