^0 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.43. 



rest of the scale. The pairs all fail to make a complete ring, being 

 lacking on the adaxial side. 



The operculum is composed of very thin scales more or less fluted 

 or frilled on the edges, so that the borders are turned upward. The 

 adaxial scales are much smaller and have much less pronounced 

 frills than the others. 



The branches are covered with small thin fluted scales. In places 

 these are enormously enlarged by a parasitic annelid, forming an 

 arcade along the branch, which furnished a character for Allman's 

 genus Calypterinus} 



Color: The colony is duU, yeUo wish-brown. 



Localities. —Si2,tioJi 4918; Gwaja Shima, S. 38° E., 34 miles; 361 

 fathoms. Station 4935; Sata Misaki Light, N. 58° E., 4.5 miles; 

 103 fathoms. Station 4936; Sata Misaki light, N. 21° E., 5.7 miles; 

 103 fathoms. 



General distribution. — The type was secured from Gokeba, south- 

 west from the Province of Awa, Japan. Another fragment was from 

 the Sagami Sea. 



Genus CALIGORGIA Gray (emended by Versluys). 



Colony flabellate, pinnate or dichotomous, without secondary 

 brandlings. Calyces in whorls, club-shaped, appressed to the 

 branches and with their adaxial walls incomplete. Circumoper- 

 cular scales lacking. 



CALIGORGIA FLABELLUM (Kolliker). 



Primnoa flabellum Kolliker, Icones Histologicse, vol. 2, 1865, p. 135. 

 Calligorgia flahellum Studer, Monatsber. Akad. Wiss. Berlin, 1878, p. 646. 



Colony 20 cm. high, strictly flabellate, breaking up near its base 

 into four large branches which are scarcely flattened. Secondary 

 branches rare. Branchlets regularly alternate, averaging about 6 

 mm. apart, all in one plane. 



The calyces are clavate, much curved, nearly facing the branch. 

 Ordinarily they are in whorls of four, but increase proximaUy until 

 there are as many as 18 on the bases of the larger branches. The 

 individual calyces are 1.5 mm. in height, and nearly uniform in 

 diameter. There are usually about 8 whorls to the cm. There are 

 7 scales in each of the abaxial rows and 4 or 5 in the outer lateral 

 rows. Adaxial scales 2. The sculpturing on the distal scales is not 

 so pronounced as figured by Versluys and Kinoshita; but the calyces 

 are practically identical with those figured by Wright and Studer. 



The operculum is high, conical, composed of slender triangular 

 flaps, the adaxial ones being shorter than the others. All of the 

 spicules are plainly granulated. 



1 Challenger Eeports, the Alcyonaria, 1889, p. 53. 



