6 FAUNA OF NEW ENGLAND. 



Mass. — Nahant, Race Point, Chatham, Vineyard Sound, 10 to 

 100 fathoms (hydroid). Medusa, April and May. 



11. Hybocodon prolifer L. Agassiz. 



L. Agassiz, Contr. nat. hist. U. S., 1862, vol. 4, pp. 243, 343, pi. 

 23a, figs. 10, 11; pi. 25. "Nahant." 



Boreal, widely distributed in the North Atlantic. 



Mass. — Massachusetts Bay, Nahant, Woods Hole, Vineyard 

 Sound. 



Georges Bank. 



12. EcTOPLEURA ochracea A. Agassiz. 



A. Agassiz, in L. Agassiz, Contr. nat. hist. U. S., 1862, vol. 4, 

 p. 343, footnote. "Naushon, Buzzard's Bay." 



Ectopleura dumortieri Mayer, Publ. Carnegie inst., 1910, no. 109, 

 vol. 1, p. 69, pi. 5, figs. 4, 5; pi. 6, figs. 1, 1', 2. 



Cape Cod southward, summer and autumn. Not known from 

 north of Cape Cod. 



Mass. — Naushon, Woods Hole, Buzzards Bay. 



R. I. — Newport. 



Probably the same as the European E. dumortieri. 



CLADONEMIDAE. 



13. Zanclea gemmosa McCrady. 



McCrady, Proc. Elliott soc. nat. hist., 1857, vol. 1, p. 151, pi. 8, 

 figs. 4, 5. [Charleston Harbor, South Carolina.] Mayer, 

 Publ. Carnegie inst., 1910, no. 109, vol. 1, p. 88, pi. 6, fig. 7; pi. 7, 

 fig. 5; pi. 8, figs. 4, 5. 



A southern species unknown north of Cape Cod. West Indies to 

 southern New England. 



Mass. — Buzzards Bay, Naushon, Woods Hole. 

 R. I. — Newport, common in late summer. 



