FOSSIL CORALS FROM WEST INDIES WELLS 



99 



Specimen.— U.S.l^M. no. 44289. 



Occnn^ence. — Probably from the Yellow limestone at Williams- 

 field, St, James Parish, Jamaica (Matley collection). 



Beniarks. — This specimen very likely represents a new species but 

 it is in very poor condition as a result of much surface wear, which 

 has almost destroyed the wall and has obliterated the upper mar- 

 gins of the septa. The generic affinities are doubtful until better 

 specimens can be found. 



Family EUPSAMMIDAE Milne Edwards and Haime 

 Genus EUPSAMMIA Milne Edwards and Haime, 1848 



EUPSAMMIA CLARENDONENSIS, new species 



Plate 4, Figukes 6, 7 ; Plate 5, Figure 6 



Descnption. — Corallum simple, free, small, short, turbinate or 

 subhemispherical, with a shallow, slightly elliptical calice and a 

 nipple-shaped scar of early attachment at the base. The exterior is 

 not well shown by either of the specimens, but no epitheca appears 

 to have been present. The wall is porous, synapticulate, and of some 

 thickness. The septa are imperforate and laminar, with a few scat- 

 tered pores. Their arrangement is characteristic of the Eupsam- 

 mids, the septa of the first two cycles being free and straight, extend- 

 ing to the center; the septa of the fourth cycle fusing to the third 

 cycle near the columella, producing a delta-shaped group of septa; 

 and the fifth cycle fusing to the fourth. About three-fourths of the 

 sixth cycle is developed. The columella is well developed, spongy, 

 and joined to the inner ends of the first three cycles of septa. The 

 distal ends of the septa are lost in the synapticular tangle of the 

 wall. The synapticulae are well developed and are most abundant 

 near the wall. There are no dissepiments. 



Measureinents. — As follows : 



Specimen 



1 (type) 



2 (paratype)- 



Height 



Mm 

 6.5 

 6.5 



Diameters 



Mm 

 10.5 by 12 

 9 by 10 



Type.—U.^.'^M. no. 44290. 



Paratype.—U.^.'^M. no. 44291. 



Occurrence. — In the Yellow limestone on Peace Kiver, Clarendon 

 Parish (type specimen) ; and on the bridle trail near Whitney 

 Valley, ll^ miles from Peace River, Clarendon Parish (Matley 

 collection). 



