90 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.43. 



General distribution. — Type-locality, Atlantic coast of North 

 America, at considerable depths. 



Genus BATHYGORGIA Wright and Studer. 



Spicules of polyps and coenenchyma bar-like forms with turgid 

 rounded ends, often biclavate. 



BATHYGORGIA PROFUNDA Wright and Studer. 



Bathygorgia profunda Wright and Studer, Challenger Reports, the Alcyonaria, 

 1889, p. 32. 



A fragment secured by the U. S. Fisheries steamer Albatross 

 evidently belongs to this species. It is 11.4 cm. long, and consists 

 mainly of two stems or branches which seem to adhere throughout, 

 a condition which is probably accidental or abnormal. 



The longest calcareous joint is 4.2 cm. long. The homy joints are 

 very short. The calyces are distant, unequall}^ distributed on all 

 sides of the stem or branch, and are spaced about 7 mm. apart. There 

 is a small branch given off from near the top of one of the calcareous 

 jomts, the polyps vary greatly in size, one of the largest being 4 mm. 

 in height with a diameter of 1.5 mm., somewhat larger distally. 

 There are a number of large, biclavate spicules or bars with enlarged 

 ends. These bar-like forms are mostly longitudinal, but may be 

 oblique on the basal part of the body. They seem to be stuck on to 

 the surface of the coenenchyma, and attain a length of 2 mm. The 

 upper part of calyx walls and bases of the tentacles bear smaller 

 spicules of the same shape, usuall}^ longitudinal in position, but often 

 criss-cross. The dorsal surface of the tentacle on median parts is 

 covered with small bar-like spindles which are mamly transverse. 



Spicules: These are all bar-like forms, mth turgid ends and surfaces 

 irregularly striated and bearii^ig minute points. 



The coenenchyma is thin and contains numerous minute spicules 

 of the same type. 



Color: Orange-brown, with the axis showing plainly through the 

 coenenchyma. The polyps are dark brown, silvered by the spicules. 



iomZ%.— Station 4766; Koniuji Island, S. 22.5° W., 27 miles; 

 1,766 fathoms. 



Type-locality. — Between Yokohama and the Sandwich Islands, 

 2,300 fathoms. 



Genus CERATOISIS Wright. 



Calyces with a crown of needle-like spicules; axis simple or branched; 

 coenenchyma and often the calyces with oblong lenticular or oval 

 scales with comparatively^ smooth surfaces. 



