rOLYPS AND CORALS. 319 



Ly-ce-moon Passage, near Hong Kong, China, dredged 

 in twenty-five fathoms, shelly gravel, April, 1854. Dr. 

 Wm. Stimpson. 



Halocampa Capensis Verrill, these Proceedings, Vol. 

 IV, p. 151, 1865. 



Plate 3, figure 3. 



Column elongated, rather slender, subvermiform, con- 

 tracting by the involution of the summit. The twenty 

 internal lamellse show through the side-wall, and the 

 spaces between them are sub-papillose toward the upper 

 part of the body. Tentacles twenty, oblong, enlarged 

 toward the tips, which are obtusely rounded. 



Color pale reddish, with flake-white dots and patches. 

 Inner side of tentacles flake-white ; six of the tentacles 

 (perhaps more) have the lower part of their inner surface 

 of a dark brown color, which gives the appearance of 

 ocelli at their bases. 



Length in life, .5 of an inch; diameter, .12. 



Simon's Bay, Cape of Good Hope, twelve fathom.s, 

 sand, October, 1853. Dr. Wm. Stimpson. 



"Its actions are Holothurian-like. Its base is rather 

 small and perhaps provided with an opening, since a fila- 

 ment protruded therefrom during a contraction of the 

 animal." — W. S. 



Halocampa Stimpsonii Verrill, sp. nov. 

 Plate 3, figure 1. 



Column cylindrical, rather short, with a rounded base. 

 The twenty internal lamellse appear through the wall as 

 longitudinal lines. Tentacles twenty, alternately longer 

 and shorter, with a constriction near the tips, beyond 

 which they regain their former size, tips obtusely rounded. 



Color yellowish white ; tentacles with a flake-white 

 spot on the middle of the knob, from which a median 

 white line extends along the inner side of the tentacle to 

 the ring around the mouth. 



