MEDUSAE CRASPEDOTAE. 19 



Publ. Carnegie inst., 1910, no. 109, vol. 2, p. 331, pi. 43, fig. 1-5; pi. 

 44, fig. 5; p. 329. fig. 189. 



New England coast, June to October. 



Me. — Eastport region. 



Mass. — Buzzards Bay, Woods Hole, Naushon. 



R. I. — Newport. 



54. Aequorea tenuis (A. Agassiz) Bigelow. 



Rhegmatodes tenuis A. Agassiz, in L. Agassiz, Contr. nat. hist. 

 U. S., 1862, vol. 4, p. 361, footnote. " Naushon, Buzzard's Bay." 

 A. Agassiz, Mem. Mus. comp. zool., 1865, vol. 1, no. 2, p. 95, fig. 

 136-138. 



Southern New England in summer and early autumn; not known 

 north of Cape Cod. 



Mass. — Woods Hole, Naushon, Buzzards Bay. 

 R. I. — Newport. 



55. Aequorea groenlandica Peron and Lesueur. 



Medusa aequorea Fabrieius, Fauna Groenlandica, 1780, p. 364. 

 [West • Greeni^^nd.] 



Aequorea groenlandica Peron and Lesueur, Ann. Mus. d'hist. 

 nat. Paris, 1809, vol. 14, p. 339. " la mer du Groenland." 



Zygodachjla groenlandica A. Agassiz, Mem. Mus. comp. zool., 

 1865, vol. 1, no. 2, p. 103, fig. 153-155 {nan fig. 156). Mayer, 

 Publ. Carnegie inst., 1910, no. 109, vol. 2, p. 335, pi. 44, fig. 1-4. 



A northern species, known as far south as Newport, R. I., and 

 represented by a distinct variety to North Carolina. 



Me. — Eastport region. 



Mass. — Massachusetts Bay, Vineyard Sound, Buzzards Bay, 

 summer and autumn. 

 R. I. — Newport. 



