PLATE XIX 



From original Drawings by B. F. Nutting. 



Fig. 266. Eolis Bostoniensis. 



Fig. 267. Eolis diversa. 



Fig. 268. Eolis diversa. 



Fig. 269. Eolis riifibrancliialis, one of the branchiae. 



Fig. 270. Eolis pilata. 



Fig. 271. Eolis stcllata, one of the branchias; from a drawing by Dr. Stimp- 

 son. 



Fig. 272. Eolis riifibrancliialis. 



Fig. 273. Eolis Bostoiiicnsis, one of the branchiae. 



Fig. 274. Eolis Bostoiiieiisis, under surface. 



Fig. 275. Eolis Bostoniensis, upper surface. 



Fig. 276. Eolis diversa, one of the branchiae. 



Fig. 277. Eolis pilata, profile and apex of one of the branchite. 



Fig. 278. Eolis stellata ; from a drawing by Dr. Stimpson. 



Fig. 279. Eolis pilata. 



Fig. 280. Eolis diversa. 



Fig. 281. Eolis pilata, under surface of head. 



Fig. 282. Eolis picta, upper, side, and lower view ; enlarged view of dorsal 



tentacles and branchiaj. 



Fig. 283. Eolis Bostoniensis, under anterior surface. 



