1869.] 393 [Verrill. 



Deudrophyllia surcularis Verrill, sp. nov. 



Corallum low, rounded above, consifiting of a large number of 

 divergent, elongated, cylindrical corallites, varying greatly in size 

 and length, and all united together into a thick base, which, on the 

 sides, is seen to be made up of numerous, short and thick, closely 

 branched trunks, partially united together laterally, and budding 

 from all parts of the sides, and from the common basal tissue be- 

 tween the corallites of the upper surface, many of the longer coral- 

 lites also bud on the sides and near the summit. The largest 

 corallites are .6 to .8 inch in diameter, and project 1 to 1.4 above the 

 base. Walls thin, very porous, covered externally with fine, subequal, 

 scabrous costs. Cells very deep and ojaen, often nearly as deep as 

 broad, the septa not projectieg above the margin. Septa in four 

 complete cycles, often with narrow rudimentary septa of the fifth 

 cycle. Primary and secondary septa nearly equal, narrow, thin, the 

 lower part perpendicular, the upper part narrowed rapidly to the 

 edge of the cell ; those of the third- cycle similar but smaller ; those 

 of the fourth much narroA^r, excejit far within the cell, where they 

 join the columella ; those of the fifth very narrow and thin. None of 

 the septa unite together, so far as can be seen from the surface, but 

 those of the fourth and fifth cycles are shghtly bent. 



Columella well developed, with a regular convex surface, composed 

 of a fine, spongj'' tissue. 



Color of the unbleached coral nearly black. 



Height 3 inches; breadth 5.25. 



Pearl Islands, Bay of Panama, brought from six to eight fathoms 

 by divers; F. H. Bradley. 



Paracyathus Stearnsii Verrill, sp. nov. 



Corallum with an expanded base, above which it is somewhat con- 

 stricted, and then expands rapidly to the edge of the broad, shallow 

 cup, which is broad oval in form, the edge bent into slight lobes or 

 undulations. Exterior with very numerous, prominent, subequal, 

 scabrous costs, which extend from the summit to the outer edge of 

 the base; on the basal portion three or five smaller ones often alter- 

 nate with one more prominent; toward the summit some of them 

 have a tendency to rise into crests; all arc covered with several series 

 of small, sharp granulations, similar to those on the sides of the 

 septa. Five complete cycles of septa, with some small ones in some 

 of the systems belonging to the sixth cycle, so that the whole number 

 is about one hundred and twenty. The primary and secondary septa 



