586 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. XXXIV. 
CYCLOMURICEA FLABELLATA, new species. 
Plate XLV, figs. 2 and 3; plate XLIX, fig. 1. 
Colony (fragmentary) 65 mm. high, flabellate in general form. 
Main stem giving off irregularly spaced branches from opposite 
sides, and then dividing into two branches about 25 mm. from the 
base; these latter branches giving off branchlets from one side only; 
the branchlets again dividing, in some cases giving off terminal twigs 
trom both sides. : 
Polyps irregularly distributed on opposite sides of main stem, but 
becoming more closely approximated on the smaller branches and 
twigs, where the distance between adjacent polyps is about 1 mm. 
The calyces are inclined distally and bend slightly at the ends. They 
are short, stout, columnar, about 1 mm. high, and their diameter is — 
about equal to their height. The cesophageal region is not well 
differentiated. 
Spicules, warty spindles, many of them rather slender, sometimes 
forked, but usually fairly symmetrical. Those in the calyx walls are 
transversely disposed, this disposition making it: hard to differentiate 
the collaret from the rest of the polyp, the spicules having the same 
form and disposition. The tentacular spicules are of the same warty 
form; several at bases of the tentacles converging distally en chevron, 
but longitudinally arranged on the rest of the tentacle. 
Color.—Axis dark brown; polyps lighter brown, in alcohol. 
Type.—Cat. No. 25331, U.S.N.M., Albatross Station 4161, off Bird 
Island, 39-183 fathoms. 
Genus MURICELLA Verrill. 
Coenenchyma thin; calyces short, subconical; spicules warty 
spindles. 
MURICELLA TENERA Ridley. 
Muricella tenera RIDLEY, Zoological Collections of H. M. S. Alert, 1884, 
Pp. 305. 
The specimens secured by the Albatross agree better with the de- 
scriptions of those secured by the Challenger than with the original 
descriptions of Ridley, especially regarding the disposition of the 
spicules on the calyx walls. The calyces are exceedingly variable 
In size. 
Distribution—South coast of Molokai: Station 3854, 130-134 
fathoms (Cat. No. 25373, U.S.N.M.). 
Type—Locality.—Port Molle, Queensland. 
The Challenger specimens were secured off the Ki Islands, Papua. 
