C011YNE PUSILLA. 39 



been observed in North America, one of which at least is 

 identical with a British form*. A single species from the 

 Pacific shores of the American continent (San Francisco) 

 has been published by A. Agassiz ; and I have met with a 

 minute species on gulf-weed, which I believe to be unde- 

 scribed. The genera are represented on the coasts of 

 Greenland, of Norway (to the North Cape), of Sweden, 

 and of Belgium by forms that occur in our own seas. 



1. C. PUSILLA, Gaertner. 



CORYNE I'USILLA, Gfierfno; in Pall. Spicil. Zool. fase. x. 40, tab. 4. fig. 8. 

 ? Sv.NcoitYNALisTERii, Van Bcncdcn, Mem. sur Ics Tubul. 54, pi. iii. figs. 11, 12. 

 CORYNA GLANDULOSA, Daly ell, Bern. An. Scotl. ii. pi. xxi. 

 CORYNE RAMOSA, Alder, North. & Durli. Cat, in Trans. Tynes. P. C. iii. 102. 

 SESSILIS (young), Gossc, Devonsh. Coast, 208, pi. xiv. figs. 1-3. 



Plate VII. fig. 1. 



STEM rather stout, irregularly and sparingly branched ; 

 polypary of a dark horn-colour, closely and distinctly 

 cumulated throughout ; POLYPITE long, linear, very slen- 

 der, scarcely tapering towards the lower extremity, red- 

 dish ; tentacles very numerous (30 or more], rather long 

 and slender, and not expanded at the base, subverticil- 

 late ; GONOPHORES scattered over the body. 



Height about an inch. 



THE tentacles in C. pusilla are more truly whorled than 

 in any other species of Coryne, but the arrangement is by 

 no means perfectly regular. They are slender and fur- 

 nished with large capitula. 



The ammlation of the stem is well-defined. The rings 

 are narrow, closely set, and not prominent. The branch- 



* The Syndic? //OH, of A. Agassiz (North- Amer. Acaleplue, 177) is founded 

 on a small Corynoicl, obtained in Massachusetts J5ay and Eoston Harbour. 

 The dill'erenees between it and .s////cu/y///<' are confined to the sexual zooid. 

 and do not seem to be of generic value. 



