202 BULLETIN OF THE 



Stenocyathus vermiformis Pouht. 



Station No. 5. Lat. 24° 16' N., Long. 82° 13' W. 152 - 229 fms. 

 (Sigsbee.) Off Havana. 243 - 450 fms. 



Theeocyathus Isevigatus Pourt. 



Station No. 5. Lat. 24° 16' N., Long. 82° 13' W. 229 fms. 

 " " 19. Lat. 23° 3' N., Long. 83° 10' W. 310 fms. 



Theeocyathus reeurvatus Poubt. spec. nov. 



Corallum conical, pedicellate, free when full grown, curved at base, covered 

 by a thin, pellicular, wrinkled epitheca, extending to the border of the calicle ; 

 the costae can be distinguished through it. Septa very slightly exsert, rounded, 

 granulated, somewhat plicated near the edge ; in six equal systems, having the 

 fourth cycle developed in only a part of them. Pali thick, conical, in front of 

 the septa of the first, second, and third order, wanting, however, in front of those 

 of the third in the half-systems lacking the fourth order. Columella composed 

 of about ten papilla), very similar to the pali, and on the same level with them. 

 Height, 8 mm. ; diameter of calicle, 6 mm. 



(Sigsbee.) Oflf Havana. 175 fms. 



Conotrochus typus Seo. 



A young specimen from 292 fathoms off Havana was at first doubtfully re- 

 ferred to this species, but afterwards an adult one was found among the corals 

 dredged by Dr. Stimpson in the Gulf of Mexico. (Depth and exact locality not 

 recorded.) There is no striking difference from the European fossil, which is 

 well figured by Seguenza and by Reuss. The columella is somewhat more 

 loose and composed of fewer papilloo. The larger specimen has the systems, 

 which are regular in the young, somewhat incompletely developed, as is the 

 case in the fossil. Younger. 12 mm. long ; diameter of calicle, 3 mm. Larger, 

 24 mm. long ; diameter of calicle, 10 mm. 



Station No. 16. Off Havana. 292 fms. 



Ceratotroehus hispidus Pourt. spec. nov. 



Plate I. Figrs. 10, 20. 



Corallum attached by a slender peduncle, rather elongated turbinate ; costoe 

 ornamented with short and thick hirsute spines ; calicle circular ; three com- 

 plete cycles, six regular systems. Septa not exsert, rounded, granulated with 

 inner border re-entering below. Columella formed of about 10 papilla), not 

 very dense. Height, 1 cm. ; diameter of calicle, 5 mm. One single specimen 

 was obtained, and this is, as far as I am aware, the first representative of this 

 genus found living. 



Station No. 19. Lat. 23° 3' N., Long. 83° 10' W. 310 fms. 



