30 FAUNA OF NEW ENGLAND. 



CTENOPHORAE. 



CYDIPPIDA. 



MERTENSIIDAE. 



1. Mertensia ovum (Fabricius) Moerch. 



Beroe ovum Fabricius, Fauna Groenlandica, 1780, p. 362. [West 

 Greenland.] 



Mertensia ovum A. Agassiz, Mem. Mus. comp. zool., 1865, vol. 1, 

 no. 2, p. 26, fig. 29-37. 



A common Arctic species. 



In winter the young is recorded from New Jersey; but the adult 

 is not known south of Marthas Vineyard. 



Me. — Eastport. 



Mass. — Massachusetts Bay, Woods Hole (?). 



PLEUROBRACHIIDAE. 



2. Pleurobrachia pileus (Fabricius) Vanhoffen. 



Beroe pileus Fabricius, Fauna Groenlandica, 1780, p. 361. [West 

 Greenland.] 



Pleurobrachia rhododadyla L. Agassiz, Mem. Amer. acad. arts 

 and sci., 1850, new ser., vol. 4, p. 317, pi. 1-5. A. Agassiz, Mem. 

 Mus. comp. zool., 1865, vol. 1, no. 2, p. 30, fig. 38-51. 



Probably cosmopolitan. 



Me. — Bay of Fundy, Casco Bay, Penobscot Bay (?). 



N. H.— Isles of Shoals. 



Mass. — Massachusetts Bay, Woods Hole. 



R. I. — Newport. 



Gulf of Maine in general. 



CESTIDA. 



CESTIDAE. 



3. Cestum veneris Lesueur. 

 Venus girdle. 



Lesueur, Nouv. bull. soc. philom. Paris, 1813, vol. 3, p. 282, pi. 5, 

 fig. 1,A, B. "Nice." 



