328 VERRILL, SYNOPSIS OF 



Near Hong Kong, on a stone in the third region of the 

 littoral zone, April, 1854. Dr. Wm. Stimpson. 



The specimen, contracted in alcohol, is smallest in the 

 middle, where the surface is finely wrinkled transversely 

 and covered with small roundish papillae ; epidermis 

 closely adherent. The base and the region just above it 

 are dilated and have a thin, translucent texture, gradually 

 merging into the portion covered with the epidermis. 

 The naked region below the tentacles is also dilated, and 

 the integument is thin, longitudinally lined, and covered 

 with very small, granule-like papillae, which become 

 closer below and merge into the epidermal region. No lat- 

 eral openings apparent. Length one inch; diameter .5. 



PHELLIA sp. 



In alcohol about one inch long, .35 in diameter; the 

 upper end involved and showing strong radiating folds, 

 which extend downward beyond the middle of the body. 

 Epidermis thin, closely adherent. 



Bonin Islands. Dr. Wm. Stimpson. 



PHELLIA sp. 



A large species. When contracted in alcohol 1.25 

 inches long; .5 in diameter. Integument firm and thick, 

 longitudinally and transversely wrinkled, covered with a 

 coarse, dark, brownish, inseparable epidermis, except 

 just below the tentacles, where there is a narrow, naked 

 space. 



Ousima. Dr. Win. Stimpson. 



PHELLIA ARCTICA Verrill, sp. nov. 



Column enlarged at base, in an alcoholic specimen, di- 

 minishing upward to near the margin ; covered, except 

 within about .1 of an inch of the margin, with a thick, 

 roughened epidermis, which easily peals off, leaving a 

 firm, minutely roughened and transversely wrinkled 

 wall ; naked space below the tentacles smooth. Tenta- 

 cles slender, elongated, subequal, arranged in two close 



