NO. 1624. DESCRIPTIONS OF HA WAIIAN ALCYONARIA— NUTTING. 583 



directions, there being no regularity whatever. The collaret is dis- 

 tinct, formed of annularly disposed spicules. The opercular spicules 

 are in bundles of a dozen or more, parallel and vertical, rather short 

 Avith blunt ends, arranged en chevron at the very bases of the tenta- 

 cles. Spicules of the cortex with a tendency toward a longitudinal 

 arrangement, although there is much irregularity in their disposition. 



Color. — The axis, cortex, and calyces are all creamy white in color 

 (in alcohol), so that the colon}^ bears a striking resemblance to a 

 coral. 



Type.—(^2X. No. 25378, U.S.N.M., Albatross Station 4157, off Bird 

 Island, 762-1,000 fathoms. 



CLEMATISSA TENUE, new species. 



Plate XLIY, fig. 3 ; plate XLIX, fig. 2. 



Colony straggling in habit, attaining a height of 150 mm., some- 

 times unbranched and at others very sparsely branched. In one 

 specimen there are two very short branches very distant from each 

 other, and in others there are several long, straggling, irregularly dis- 

 posed branches. 



Calyces arranged in rather irregular spirals which grow closer 

 toward the distal ends of the branches. Branches terminating in a 

 polyp. The calyces are very low dome-shaped, spreading at their 

 bases, which are often contingent. 



Polyps, when expanded, arising abruptly from the summit of the 

 calyx, where they assume the form of a miniature acorn; sometimes 

 the polyp is greatly elongated and the tentacles are extended and not 

 folded over the mouth as usual, but generally the attitude is the char- 

 acteristic one of the family. The expanded polyp shows eight longi- 

 tudinal bands of warty spicules. 



Spicules usually small, exceedingly varied in shape. Those of the 

 coenenchyma are almost scale-like in appearance, and their outer edges 

 seem to overlap the inner edges of those in the next row ; edges jagged 

 and irregular. The spicules of the calyx walls are similar to those 

 just described. The collaret is evident, the spicules at the bases of 

 the tentacles are warty spindles arranged en chevron., and the re- 

 mainder of the tentacular spicules are longitudinally arranged. There 

 are many warty spindles in the cortex, often with projections on one 

 side, sometimes curved or branched. 



Color. — Gray. 



Tyjte.—Q^it. No. 22569, U.S.N.M., Albatross Station, 4102, between 

 Molokai and Maui, 122-132 fathoms. 



Distribution. — Between Maui and Molokai : Station 3856, 127 fath- 

 oms (Cat. No. 22566, U.S.N.M.) ; Station 3857, 127-128 fathoms (Cat. 

 No. 22570, U.S.N.M.) ; Station 3858, 128-138 fathoms; Station 3859, 



