when examined with a lens they appear covered with granulations! 
the colusella la formed by papillae similarly granulate. ** 
Original description of Leptaetrea caribaea. 8 "Specie* globular, 
with calicos almost contiguous, circular, margins elevated! columella 
simple* septs alternately smaller. " St* Thomas. 
Botes on .type s Calicos, 2 to 2.5 asm. in diameter! margins slight- 
ly elevated* Septa of the last cycle rarely fused to the sides of the 
secondaries! p&XHorm lobes insignificant or absent. Columella with 
papillate upper surface. 
Original description of Solsnaatrsa mlcans s "Cor&llu® orbicular, 
with crowded calicss, circular, but often deformed, diameter about a 
line [2 ram.]} their upper margin is free, projecting above the rest of 
the surface! the septa are very echinulate and thicken outwardly? ib® 
columella is thick and vesiculate. " St. Thomas.. 
Botes on type ; The calicos are crowded; 2 to 3 mu in diameter. 
Septa in two complete cycles, with a few tertiaries; primaries and 
secondaries of the same sis©. 
Solenactrea alii si , according to Du-chassaing and Mlchelotti, M has 
for a synonym the Actrea pie lades figured in the worlcaof Sills and Sol- 
under, Hoc. X and 4 of Plate 53. w There is a specimen* probably. the 
type, in the Museum of MaturaX History at Turin, labeled goi.an&st rea 
allisii. It has small calicos, 2 mm. In diameter} and three cycles 
o? septa, the last very small. 
Duncan's Plcsiastraoa diet an© and P. gl obosa , from the silt of the 
sandstone plain of Santo- Domingo, belong in the ©am® synpayffly. The type® 
of both specie® ere preserved in the collection of th© Geological Society 
