54 VERRILL, SYNOPSIS OF 



Oken. In alcohol it contracts into a low cone, the sur- 

 face strongly corrugated and roughened with small ele- 

 vated portions, the openings (cmclidce) at the summit of 

 small verrucas, not very numerous, scattered over the 

 surface. 



CEREUS SINENSIS Verrill, sp. nov. 

 Plate 2, figure 3. 



Base expanded, adherent to shells. Column in full ex- 

 pansion much elongated, smallest in the middle. Disk 

 not much exceeding the column. Mouth surrounded by 

 numerous small folds. Tentacles about one hundred and 

 twenty ; the inner row of twelve little more than half way 

 from the mouth to the margin, considerably larger than 

 the rest. Outside of these the tentacles become succes- 

 sively smaller and more crowded to the margin, forming 

 three or four rows. All the tentacles are rather long 

 and slender, the outer ones not becoming so short as in 

 many other species. 



Color of column pale grayish, with twelve longitudinal 

 stripes of purple. Mouth and disk fawn-color ; the latter 

 radiated with streaks of purplish, yellowish, etc. Ten- 

 tacles yellow, annulated with six rings of purple, the 

 basal band being purple. Among the submarginal ten- 

 tacles are six conspicuous white ones. 



Off the China coast, near Hong Kong, in ten to thirty 

 fathoms, on a large Valuta, May, 1854. Dr. William 

 Stimpson. 



The affinities of this species are with C. parasitica of 

 Europe, and C. sol of the Carolina coast. 



In alcohol, some of the specimens are contracted into a 

 broad, nearly flat disk, the edges very thin, others form 

 hemispheres and rounded cones. The surface is smoother 

 than in the preceding species. Cinclidee inconspicuous. 



CEREUS sp. 



A species resembling the preceding in form and struc- 

 ture, but unaccompanied by notes upon the color, etc. 

 Ousima, Japan. Dr. Wm. Stimpson. 



