164 DISCOPHOR^. Part m. 



P. Lessoni Br. — Pelagia panopyra Less., Centurie Zoologique, Pis. 

 G2 and 63. — Nothing can be worse than the figures of this 

 Acaleph pubHshed by Lesson, who represents it in one of 

 liis plates without indentations, and without eyes along the 

 margin of the disk (PI. 62), and in the other (PI. 63), with 

 a disk divided into twelve unequal lobes. I am not ac- 

 quainted with a single Medusa presenting such a combination 

 of characters. I have, however, before me drawings, made by 

 Mr. J. Drayton, in the same quarter of the world, under the 

 supervision of Mr. Couthouy, during Capt. Wilkes' Ex^oloring 

 Expedition, which show the existence of a Pelagia along 

 the western coast of Africa, closely allied to P. uoctiluca, but 

 different from P. cyanella, for which I feel bound to retain 

 the name of P. Lessoni, inscribed by Brandt, for one of the 

 plates of Lesson. This species is more transparent and hya- 

 line than P. noctiluca, of a lighter rose color, and does not 

 seem to grow so large. — Medusa pelagia Forsk., and Pelagia 

 guineensis Per. and LcS., may also belong here. — Cape de 

 Verd Islands (Couthouy in Capt. Wilkes' Expedition); from 7° 

 N. Lat. to 4° >S'. Lat, and 22° W. Long. (Lesson). 



P. cyanella Per. and LeS., Esck, Bosc, Ag., Pis. 13 and 13^ — Me- 

 dusa pelagia Swarts. — Medusa pelagia Loffling. — Pelagia ameri- 

 cana Per. and LeS. — Pelagia noctiluca Cham., in Choris' Voy. 



— Pelagia denticulata Per. and LeS. — Dianfea cyanella LniJc. 



— Diantea denticulata LmJc. — Caribceun Sea (Swartz and Lof- 

 fling) ; Coast of Florida : Tortiigas (L. Agassiz). 



P. panopyra Per. and LeS., Voy. aux Terres Austr., PI. 31, fig. 2 

 (not Br.), Esck. (p. p.). The specimens seen by Eschscholtz 

 in the Atlantic, which he refers to P. panopyra, were prob- 

 ably P. Lessoni Br. — Dianaja panopyra Link. — Australia (Pe- 

 ron and LeSuenr) ; Pacific (Eschscholtz). 



P. Brandtii Ag. — Pelagia denticulata Br., Ac. St. Petersb., 1838, 

 PI. 14, fig. 2 (not Per. and LeS., which is P. cyanella). — 

 Aleutian Islands (Mertens). 



P. tuberculosa Couth., Msc. — Pelagia panojDyra Br., Ac. St. Petersb., 

 1838, PI. 14, figs. 1 and 14'^ (not Per. and LeS.).— Coast of 

 Chili (Couthouy, in Capt. Wilkes' Expedition); Peru (Mertens). 



P. flaveola Esch., Acal., PI. 6, fig. ^. — North Pacific, 34° N. Lat. 

 and 201° W. Long. (Eschscholtz). 



