JEQUOREA. 



109 



Fig. 159». 



length of the chjmiferous tubes, they are linear (Fig. 159*) ; opposite 

 each of the chymiferous tubes there is one large tentacle, very con- 

 tractile, with a slight swelling at the base ; between the chymifer- 

 ous tubes, one smaller tentacle and marginal capsules ; the chymiferous 

 tubes, near the base of the 

 digestive cavity, anasto- 

 mose frequently ; the sec- 

 tion of the spherosome re- 

 sembles that of Zygodac- 

 tyla more than any other 

 genus of the family. The 

 disk mcreases rapidly from 

 the circular tube, and re- 

 mains then of the same 

 thickness to the base of 

 the projection of the disk 

 in the inner cavity ; here 

 the outline of the inner 

 bell suddenly curves down, 

 and projects like a spheri- 

 cal segment, nearly hemi- 

 spherical, in the cavity of 

 the bell, the outline of the 

 outer bell having a slight 

 constriction at this point, and from there curving gradually to the 

 abactinal pole. From three to four inches in diameter ; specimens one 

 and a half inches high, measured three and a half mches in diameter. 



Gulf of Georgia, W. T. (A. Agassiz). 



Cat. No. 123, Gulf of Georgia, W. T., June, 1859, A. Agassiz. Medusa. 



^QUOREA Per. et Les. 



JSqunrea Per. et Les. ; in Ann. du Mus., p. 22. 1809. 

 JSquorea Less. {p. p.). Zooph. Acal., p. 305. 1843. 

 ^quorea Agass. Cont. Nat. ffist. U. S., IV. p. 359. 1862. 



.ffiquorea ciUata Esch. 



^quorea ciliata 'EsCK. Syst dcr Acal., p. 109, PI. 9, Fig. 1. 1829. 



jEquorea ciliala Agass. Cont. Nat. Hist. U. S., IV. p. 359. 18G2. , 



JEquorea cUiata Less. Zooph. Acal., p. 306. 1843. 



Northwest Coast of North America, Lat. 41° to 51° N. (Eschscholtz) ; 

 Straits of Fuca (A. Agassiz). 



Fig. 159'. Crematostoma flava A. Agass. 



