242 BULLETIN: MUSEUM OF COMPAEATIVE ZOOLOGY. 



TROCHOSERIS, Edwaeds and Haime. 

 Trochoseris catadupensis, sp, nov. 



Plate XXXIX. Figs. 5, 6. 



Corallum short cornute, attached by a pedicel, calice flaring out. Height of 

 corallum 13 mm. Diameters 3 mm. below calicular margin: longer, 12 mm. ; 

 shorter, 10 mm. Diameters of calice : greater 16 mm. ; lesser 15.5 mm. The 

 outer surface marked by low subacute costse, alternately larger and smaller in 

 size, with granulated or dentate margins. The wall, where it could be cleaned, 

 showed no perforations. The exact number of septa could not be made out 

 with absolute certainty ; by counting costee and septa where not broken off, 

 140 seemed to be the number, — i. e. there are five complete cycles with 

 about half the members of the sixth. To be sure, the septa are much 

 crowded together. The members of the first, second, and some of the third 

 cycles reach the columella ; those of the higher anastomose to the lower after 

 the type of junction in Trochoseris distorta (Michelin). The septa are solid, 

 their sides are granulate, and their margins appear to be dentate. Synapticulse 

 present in the interseptal loculi. The interseptal loculi filled up with calcareous 

 deposit. The calicular fossette in the axial region is narrow and moderately 

 deep. The columella is small, rather deep seated. It appears to be composed 

 of several trabeculae. The characters of the columella could not be made out 

 as fully as was desired, but one is present, though it is small. 



Locality. Catadupa (R. T. Hill, collector). 



Type. Museum of Comparative Zoology, Harvard University. 



Remarks. The specimen on which this species is based is apparently well 

 preserved, but on account of the calcareous filling of the lower portion and 

 the indurated condition of the matrix, calcareous sand and clay, many hours 

 of study were necessary before the features embodied in the above description 

 could be discovered. The description is not so full as is desirable, but in 

 every essential feature the species coincides generically with Trochoseris, as a 

 very careful comparison with T. distorta showed, and as it is peculiar for the 

 West Indies, it should be easy to recognize it hereafter. 



LEPTOPHYLLIA, Reuss. 

 Leptophyllia agassizi, sp. nov. 



Plate XI.. Figs. 1-4. 



Form of corallara : only one piece, with a few attached very young indi- 

 viduals, has been submitted to me. This piece is 27 mm. long ; on the lower 

 end the greater diameter is 14 mm., the lessor 12.5 ; on tlie upper end the 

 cross section is practically circular, and is about 17 mm. in diameter. The 



