32 



GEOLOGY AND PALEONTOLOGY OF THE WEST INDIES. 



although the younger specimens of T. barrettii often resemble T. 

 trochus in contour, but the surface characters of the two are distinctive, 

 as well as the size, T. trochus not usually exceeding a millimeter in 

 length. The later chambers of T. barrettii also tend to assume a defi- 

 nitely cylindrical shape which is also distinctive. 



Textularia species cf. T. candeiana d'Orbigny. 



Textularia candeiana d'Orbigny, in De la Sagra, Hist. Fis. Pol. Nat. Cuba," Foraminiferes," 

 p. 143, plate 1, figs. 25 to 27, 1839; Cushman, Bull. 71, U. S. Nat. Mus., part 2, 

 p. 12, figs. 14 to 17, 1911. 



A single specimen from station 3461, marl, gorge of Yumurf River, 

 Matanzas, Cuba, collected by T. W. Vaughan, seems to be the young 

 of this species. The material of the test, however, has little agglu- 

 tinated particles, consisting largely of clear shell material. The species 

 was described by d'Orbigny from sands of Cuba, but it is common in 

 shallow waters in the Indo-Pacific region. 



Textularia species. 

 (Plate 5, Figure 7.) 



A single sectioned specimen of Textularia was found in a slide from 

 U.S.G.S. No. 6894, southwest side of Crocus Bay, Anguilla. It is 

 elongate, composed of about 25 chambers. It is apparently the 

 microspheric form, as the early chambers are arranged in an irregularly 

 spiral manner. In general its shape suggests 

 T. agglutinata or some related species, but de- 

 terminations based on the section alone are 

 practically valueless. The occurrence of the 

 genus, however, should be noted both for corre- 

 lation work and in order that the species may 

 be looked for by others working on the material 

 from the same locality at a later time. 



A somewhat similar form occurs in the Cuban 

 material from several stations. It is a form which 

 is here figured. 



Textularia species cf. T. agglutinata d'Orbigny. 

 (Figure 1.) 



There is a large species of Textularia that occurs 

 in the thin sections of material from a number of the 

 Cuban stations. It is made up evidently of rather 

 coarse sand grains, elongate, somewhat decreasing 

 in diameter toward the apertural end. In general 

 characters it is like T. agglutinata d'Orbigny. 



As it is so large and striking a species, it has been used here to check 

 up certain of the Cuban stations in the table. 



FIG. 1. Textularia cf. agglu- 

 tinata d'Orbigny. Lon- 

 gitudinal section. X 35. 

 Specimen from station 

 7516, west end of Los 

 M clones Mountain.Cuba. 



