204 BULLETIN OF THE 



Oculina tenella Pourt. 



Station No. 10. Lat. 24° 44' N., Long. 83° 26' W. 37 fms. 

 " " 11. Lat. 24° 43' N., Long. 83° 25' W. 37 fms. 



Lophohelia exigua Pourt. 



A number of specimens were obtained in 100 fathoms on the western edge of 

 the Florida bank ; they show no variation from the type. 

 Station No. 45. Lat. 25° 33' N., Long. 84° 21' W. 101 fms. 



Amphihelia sculpta Seg. 

 Off Havana. 158 fms. 

 Off Havana. 480 fms. 

 Station No. 15. Off Havana. 785 fms. 

 " " 2. Off Havana. 805 fms. 

 Rather numerous specimens of an Amphihelia, agreeing -with Seguenza's spe- 

 cies better than with any of the varieties of Amphihelia ramea figured by Pro- 

 fessor Duncan, were dredged in this locality. 



Amphihelia rostrata Pourt. spec. nov. 



Plate I. Figs. 4. 5. 



Corallum flabellate, with all the calicles facing one way ; cocnenchyma dense, 

 finely striated in all parts, the striae finely spinose and formed by the continua- 

 tion of the costse. The calicles at first rather long infundibuliform, the young 

 rising singly or in pairs from the border of the older ones. On the older 

 branches the calicles are irregularly alternate and but little prominent. Three 

 cycles of septa, in six systems, with entire edges. Primaries and secondaries 

 equal and reaching the loosely spongy columella ; tertiaries smaller. One of the 

 primary septa, generally on the side opposite to the branch, is very much thick- 

 ened, and projects with its costal part outside the calicle in the shape of a rounded 

 spur about 2 mm. long. This appendage is entirely disconnected from the 

 budding process, which always takes place on the opposite side, or nearly so. 

 This elegant coral must have had a spread, when entire, of about 12 cm. 

 Diameter of thickest branches, 5 or 6 mm.; of calicles, 3 to 4 mm. The polyps 

 seem to have been of a pinkish color when alive. The cocnenchyma is pure 

 white. 



Station No. 2. Off Havana. 805 fms. 



Madracis asperula M. Edw. & 11. 

 Station No. 10. Lat. 24° 44' N., Long. 83° 25' W. 37 fms. 



Axohelia dumetosa Ducu. 

 Off Havana. 80 fms. 



Station No. 45. Lat. 25° 33' N., Long. 84° 21' W. 101 fms. 

 Off Havana. 175 fms. 

 Station No. 21. Lat. 23° 2' N., Long. 83° 11' W. 287 fms. 



