34 DRYODORA. 



Pleurobrachia Bachei A. AGASS. 



Pleurobrachia Bachei A. AGASS. ; in Agassiz's Cont. Nat. Hist. U. S., III. p. 294. 1860. 



Pleurobrachia Bachei A. Agass. resembles Pleurobrachia rhododac- 

 tyla in its general appearance, having about the same size ; the color 

 of the spherosome and of the tentacles being nearly the same. The 

 opening of the tentacular sac, however, is at a greater distance from 

 the pole, and the tentacles come out more from the side of the sphero- 

 some than in Pleurobrachia rhododactyla. The cceliac cavity is also 

 shorter, the funnel is longer, and the actinal portion of the sac shorter. 

 The branches leading from the digestive cavity to the chymiferous 

 tubes are much longer and more slender, the junction being above the 

 opening of the tentacular sac, while in Pleurobrachia rhododactyla 

 it is below, nearer the actinal pole. The greatest swelling of the 

 spherosome is nearer the actinal pole, not in the middle of the actinal 

 axis. 



Found in the Gulf of Georgia, and entrance of Admiralty Inlet, W. T., 

 during the whole Summer of 1859, from May to September. 



Washington Territory (A. Agassiz). 



Cat. No. 288, Gulf of Georgia, W. T., 1859, A. Agassiz. 



JANIRA OKEN. 



Janira OKEN. Lehrb. d. Naturg., III. 1815. 



Janira cucumis LESS. 



Janira cucumis LESS. Zooph. Acal., p. 104. 1843. 



Beroe cucumis MERT. (non Fab. n. Esdi.). Mem. Ac. St. Pet,, p. 522, PI. VHI. 1843. 



Janira cucumis AGASS. Cont. Nat. Hist. U. S., HI. p. 294. 1860. 



Between Sitka and Unalaschka (Mertens). 



DRYODORA AGASS. 



Dryodora AGASS. Cont. Nat. Hist. U. S., III. p. 196. 1860. 



EscJischoltzia LESS. (ex. p.). Zooph. Acal., p. 102. 1843. 



Mertensia GEGEXBAUR (jwn Less.). Archiv f. Nat., 1856. I. p. 198. ' 



Dryodora glandiformis AGASS. 



Dryodora glandiformis AGASS. Cont. Nat. Hist. U. S., HI. p. 294. 1860. 

 Beroe glandiformis. MERT. Mem. Acad. St. Pet., p. 530, PL XL 1833. 

 Eschscholtzia glandiformis LESS. Zoopb. Acal., p. 102. 1843. 

 Mertensia glandiformis GEGEXB. Archiv f. Nat., 1856, I. p. 198. 



Behring's Strait (Mertens). 



