90 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 43. 



General distrihution.—Tjpe-locsiMtj, Atlantic coast of North 

 America, at considerable depths. 



Genus BATHYGORGIA Wright and Studer. 



Spicules of polyps and ccenenchyma bar-Hke 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' 

 mainlv 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 horny joints are 

 very short. The calyces^ are distant, unequally 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 

 joints, 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-Hke 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 ccenenchyma, 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, usually longitudinal in position, but often 

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

 covered with small bar-Hke spindles which are mainly transverse. 



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

 irregularly striated and bearing minute points. 



The ccenenchyma is thin and contains numerous minute spicules 

 of the same type. 



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

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



XomZ%.— 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 crowm of needle-like spicules; axis simple or branched; 

 ccenenchyma and often the calyces with oblong lenticular or oval 

 scales with comparatively smooth surfaces. 



