578 PROCEEDINGS OF THE NATIONAL MUSEUM. tol.xxxiv. 



The operculum consists of eight delicate lamellar spicules which 

 overlap laterally in regular order, reminding one of the blades of a 

 turbine wheel; scales all of nearly the same size. 



The height of the polyp, measuring directly and not around the 

 curve, is 6 mm., and its diameter is about 2^ mm. 



The cortex spicules are long, delicate, flattened scales. 



Oolor of stem and branches pale yellow, polyps pure white (in 

 alcohol). 



This species differs from Stachyodes clavata Versluys in having all 

 three whorls of body scales about equally expanded and fluted. 



Named in honor of George M. Bowers, the U. S. Commissioner of 

 Fisheries. 



Ttjpe.—C2it. No. 25377, U.S.N.M., Albatross Station 4153, near Bird 

 Island, 962-1,059 fathoms. 



Additional locality. — Off Niihau : Station 4174, 735-865 fathoms. 



Genus CALYPTROPHORA Wright and Studer (en:iended by 



Versluys). 



Calyx body with but two pairs of very large scale-like spicules, 

 both of which usually, but not always, entirely encircle the polyp. 



CALYPTROPHORA JAPONICA Gray. ♦ 

 Calyptrophora japonica Gray, Proc. Zool. Soc. London, 1866, p. 41. 



Several specimens of this highly variable form were secured, most 

 of which seemed to belong to C. japonica No. 3 of Versluys.* 



Distribution, — Between Maui and Molokai: Station 3882, 136 fath- 

 oms (Cat. No. 25369, U.S.N.M.). 



Between Honolulu and Kauai: Station 4007, 508-557 fathoms 

 (Cat. No. 25370, U.S.N.M.). 



Between Molokai and Oahu : Station 4108, 411-442 fathoms. 



This species was secured by the Challenger off the Fiji Islands, 

 depth 610 fathoms; also by the Sihoga expedition at several locali- 

 ties in the East Indies at depths varying from 12 to 1,264 meters. 



The type is said to have come from the Japan Sea. 



CALYPTROPHORA WYVILLI Percival Wright. 



Calyptrophora loyvilU Percival Wright, Narrative, Challenger Expedition, 

 1885, p. 690. 



A very fine colony of this species was secured at Station 3997, off 

 Kauai, 418-429 fathoms ; also at Station 4019, off Kauai, 409 fathoms. 

 Secured by the Sihoga expedition from the Celebes Sea at a depth of 

 1,080-1,264 meters. 



The Challenger secured the type from the West Pacific at a depth 

 of 600 fathoms. 



o Die Gorgoniden der Siboga-Expeditiou, II, Die Primnoidje, 1906, p. 118. 



