68 SHALLOW-WATER FORAMINIFERA OF TORTUGAS REGION. 



As I have already noted in a previous paper, Q. tricarinata seems 

 related to Q. kerimhatica (Heron-Allen and Earland), which they 

 described from the east coast of Africa. D'Orbigny's specimens 

 were from Cuba and Jamaica, and I found specimens which could 

 be referred to this species in the collection from the north coast of 

 Jamaica. Specimens apparently either identical or closely allied to 

 this occur in the Tertiary of Santo Domingo. 



Quinqueloculina cf. Q. kerimbatica Heron-Allen and Earland var. philippinensis Cushman. 



From 3 stations there are a few specimens which in their general 

 character of ornamentation resemble a variety I have described from 

 the Philippines (Bull. 100, U. S. Nat. Mus., vol. 4, 1921, p. 438, 

 plate 89, figs. 2, 3). They have a reticulate periphery on each cham- 

 ber, but the sides are smooth and unornamented. 



Quinqueloculina parkeri (H. B. Brady) var. occidentalis Cushman. 



(Plate 12, Figure 2.) 



Quinqueloculina parkeri (H. B. Brady) var. occidentalis Cushman, Proc. U. S..Nat. Mus., 

 vol. 59, 1921, p. 69. 



Test differing from the typical in the great number of fine, transverse or 

 slightly oblique ridges or crenulations, and the tendency for the chambers to 

 become squarely truncate or even tricarinate. 



Length of the Tortugas specimens up to 0.60 mm. 



This variety, which I described from the north coast of Jamaica, 

 occurs also in the Tortugas collections, but is rare. It does not reach 

 so large a size as the typical form, and the ornamentation differs also. 



Quinqueloculina polygona d'Orbigny. 



Quinqueloculina polygona d'Orbigny, in De la Sagra, Hist. Fis. Pol. Nat. Cuba, 1839, 

 "Foraminif feres," p. 198, pi. 12, figs. 21 to 23. 



Test somewhat longer than broad; chambers distinct; sutures slightly de- 

 pressed; each chamber polygonal in cross-section, the periphery usually con- 

 cave, with a projecting carina at either angle; apertural end extending into 

 a short, cylindrical neck, aperture circular with an everted lip, and a single 

 bifid tooth ; surface usually dull. 



Length of the largest Tortugas specimens 0.75 mm. 



This species was originally described by d'Orbigny in Jamaica 

 and Cuba, and both in the material I have had from the north coast 

 of Jamaica and this lot of bottom samples from the Tortugas it is 

 common and in the same form as that described and figured by d'Or- 

 bigny. It is evidently a species of wide distribution in the West 

 Indian region. Brady places Q. polygona as a synonym of Q.ferus- 

 sacii d'Orbigny, but if the original figures of these two species as 

 given by d'Orbigny are compared they seem to have little in common, 

 and it seems as though Q. polygona was a well-characterized species 

 in this region. 



