PELAGIM;. 



47 



Young ? 



Cyanea Postelsii 



Cyanea Poxtelsi'i BR. Mem. Ac. St. Pet., p. 375, PI. 12, 13, 13*. 1838. 

 Cyanea Postelsii AGASS. Cont. Nat. Hist. U. S., IV. p. 1G2. 1862. 

 Cyaneopsis beliring/ana BR. Mem. Ac. St. Pet., PI. 11, Fig. 1. 1838. 

 ? Cyanea ferruginea ESCH. Syst. d. Acal., p. 70. 1829. 

 Cyanea Postelsii LESS. Zooph. Acal., p. 387. 1843. 



This species is extremely abundant during the Fall, in the Gulf of 

 Georgia and the Straits of Fuca, and rivals in size its representative on 

 the eastern shores of North America, 



Kamtschatka, Aleutian Islands, and Western Coast of North America 

 (Eschscholtz) ; North Pacific, Norfolk Sound, between Sitka and Una- 

 laschka (Mertens) ; Port Townsend, W. T. (A. Agassiz). 



Family PELAGID^E Geg. 



Pelagidce GEGENB. Zeitsch. f. Wiss. Zool., VIII. p. 210. 1856. 

 Pelagidce AGASS. Cont. Nat. Hist. U. S., IV. pp. 121, 163. 1862. 



PELAGIA PER. et LES. 



Pelagia PER. et LES. Ann. du Mus., XIV. p. 37. 1809. 



Pelagia ESCH. Syst, der Acal., p. 72. 1829. 



Pelagia LESS. Zooph. Acal., p. 388. 1843. 



Pelagia AGASS. Cont. Nat. Hist. U. S., IV. p. 163. 1862. 



Diancea LAM. Syst. An. s. Vert., II. p. 507. 



Pelagia cyanella PER. et LES. 



Pelagia cyanella PER. et LES. Ann. du Mus., XIV. p. 37. 1809. 



Pelagia cyanella ESCH. Syst. der Acal., p. 75. 1829. 



Pelagia cyanella Bosc. Hist. Nat. des Vers., II. p. 140, PI. 17, Fig. 3. 



Pelagia cyanella AGASS. Cont. Nat. Hist. U. S., IV. pp. 128, 164, IH. Pis. 13, 13% PI. 12. 



Medusa pelagia SWARTZ. Konig. Vetensk. Akad. 1 788. 



Medusa pelagia LOFFLING. Reise, p. 105. 



Medusa pelagia LIN. Syst. Nat. 



Pelagia americana PER. et LES. Ann. clu Mus., XIV. p. 39. 1809. 



Pelagia noctiluca CHAM. ; in Choris' Voyage Pittoresque, p. 3. Fi s- 68 - 



Pelagia denticulata PER. et LES. Ann. du Mas., XIV. p. 38. 



Dianasa cyanella LAMK. An. s. Verteb., II. p. 507. 



Diancea denticulata LAMK. An. s. Verteb., H. p. 507. 



This species (Fig. 68) is found along the Florida 

 Keef. In this genus the eggs develop directly into 

 the young Medusie, and the embryos are never at- 

 tached to the ground. 



Caribbean Sea (Swartz, Loffling) ; Coast of Florida, 

 Tortugas (L. Agassiz). 



Fig. 68. Pelagia cyanella Per. et Les. (copied from Agassiz's Conti-ibutions). a, umbrella ; 

 m, actinul appendages ; 7, marginal tentacles. 



