68 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.43. 



Color: The axis is a golden brown on the proximal parts of the 

 fragment, lightening distally. The calyces and coenenchyma of the 

 branches are very Hght, almost white. 



Locality.— Si&iion 5079; Omai Saki Light, N. 29° E., 24 miles; 

 475-505 fathoms. 



Types pecimen.—CaX. No. 30040, U. S. N. M. 



This species resembles Thouarella laxa Versluys,^ but it differs con- 

 sistently in the arrangement of the calyces, which are never, or only 

 accidentally, in pairs, as in the latter species. 



THOUARELLA TYPICA Kinoshila. 

 Thouarella typica Kinoshita, Ann. Zool. Japan, ser. 6, vol. 3, 1907, p. 23. 



The specimen secured by the U. S. Fisheries steamer Albatross 

 is broken, but two specimens that seem to match measured together 

 32 cm., with a spread of 5.6 cm. The stem is superficially very- 

 dark, almost black. Greatest diameter 4.3 mm. The stem gives 

 off two branches. The twigs are very densely aggregated, forming 

 a thick flattened brush, and arise from all sides of the stem, the longest 

 being about 3.2 cm. in length. 



The calyces are in very short verticils of 2 or 3, there being 10 to 

 12 verticils to 1 cm. in length of twig. The individual calyces are 

 rather slender clubs, often almost conical, standing with their inner 

 sides almost touching the branch and their mouths opening upward. 

 They are little over 1 mm. in height with an opercular diameter 

 of about 0.7 mm. Calyx scales in very irregular rows, with plain 

 rounded distal edges. The abaxial and lateral rows have 6 scales 

 to the row, and the adaxials 4. The circumopercular scales have 

 each a strong keel projecting from the inner side of its distal edge, 

 and this keel ends in a rather blunt flattened point. 



The operculum is quite low and is concealed by the circumopercular 

 scales. Flaps rather slender triangles, those of the adaxial side 

 being shorter than the others and having their edges tucked under 

 them. 



The scales of the coenenchyma are rounded and often imbricated 

 like fish scales. 



Color: The axis is very dark, almost black, in the stem and twigs 

 almost to their distal ends. The general color of the colony is a 

 grayish-brown. 



Localities.—Station 4894; Ose Saki Light, N. 41° E., 5 miles; 95 

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

 103 fathoms. 



The type-locality is west coast of Satsuma, Japan. 



1 Primnojdae of the Siboga Expedition, 1906, p. 30. 



