THE FAMILY OF THE DESMECIDINAE. 109 



Spic. tr. ac. sp. (tr°. tr. sp.) 

 tr". ac. 



A 



Loc. Lacroma. 



Schmidt does not speak of anchors; nor couki I find 

 them, even in the original specimen. The hows are ne- 

 merous enough. 



Genus II. Desmacella 0. S. '70. S. Str. 



In addition to the rods , only hoios and trenchant 

 or strongly recurved hiliamate spicules , no anchors. 



1. IfesinaceUa Johnsoni 0. S. '70. 



Synon. Hymedesmia Johnsoni Bwk. '64. (ace. to Schmidt), 

 Litt. Schmidt. Sp. Atl. Geb. pag. 53. 

 Schmidt. Erg. N. F. pag. 117. 

 Bowerbank. M. Br. Sp. I. p. 247. 

 Carter. Ann. a. Mag. 1874. XIV. p. 246. 

 Spic. ac'. 



^ (trenchant bih. and strongly bent bih.). 

 /\ (accord, to Carter, not in the specimen given 

 by Bowerbank, but frequently in another 

 specimen from Madeira). 

 Loc. Florida. N.W. from Hougesund, (106 fathoms). Madeira. 



2. IPestnacelia falcultt (Bwk.) Yosm, 

 I Syn. Halichondria falcula Bwk. '74. 



Litt. Bowerb. M. Br. Sp. Ill p. 207 and 208. 

 Spic. tr. ac. 



€e= (trenchant bihamate). 

 Loc. Shetland. 



Genus III. Amphilectus. Nov. Gen. 



Rods smooth or spined. Anchor's bi-or tri-dentate, or 



palmato-dentate , equi-or inequiended. Neither true 



» keratode-Jibre^' as in Desmacidoii, nor 



total absence of it as i?i the slimy My x ilia. 



The numerous points of conformity between the genera 



TCoies from the Leyden ^useuxn, "Vol. II. 



