66 GEOLOGY AND PALEONTOLOGY OF THE WEST INDIES. 



Lepidocyclina favosa, new species. 

 (Plate 3, Figures 1, 2, 6; Plate 15, Figure 4.) 



The following is a description of this species : 



Test of medium size, compressed, strongly undulate or saddle-shaped, the 

 central portion umbonate, much curved, thick; the remainder of the test thin 

 and flange-like; central umbonate mass with an ornamentation of polygonal 

 areas formed by raised ribs; remainder of test fairly smooth but irregularly 

 eroded in most cases. 



Vertical section with numerous distinct pillars in the umbonate region, 

 broad at the exterior and narrowing to a point near the equatorial chambers, 

 flattened peripheral portion with few indistinct pillars. 



Diameter 15 to 18 mm. for typical specimens. 



Type specimens (U. S. N. M. No. 328199) from Antigua, Leeward 

 Islands, U. S. G. S. No. 6881, from bluffs on north side of Willoughby 

 Bay. 



This is a very strikingly ornamented species and hardly likely to 

 be mistaken for any other, especially with its very strong saddle- 

 shape in addition. It was not seen in any material from the other 

 Antigua stations, but is very abundant at this station, as the photo- 

 graph (plate 3, fig. 1) will show. 



MILIOLIDJE. 



Spiroloculina species (?). 

 (Plate 5, Figures 9 and 12.) 



A section showing longitudinally a specimen of Spirolculina and 

 an oblique section of a similar specimen are reproduced on plate 5, 

 figure 9. This is from U. S. G. S. No. 6949, Simson Bay Point, St. 

 Martin, Leeward Islands. In this material, in which specimens of 

 Orbitolites are abundant, specimens of Spiroloculina are frequent, but 

 as they show only in section, it is not possible accurately to determine 

 them specifically. In a section from U. S. G. S. No. 6966, southwest 

 shore of Crocus Bay, Anguilla, there is a transverse section of a Spiro- 

 loculina with convex periphery and concave faces (plate 5, fig. 12), 

 but whether it is the same species as that from St. Martin is prob- 

 lematical. The associated species at each locality are very different, 

 however, as the abundant genus in St. Martin is Orbitolites, while in 

 Anguilla it is Heterosteginoides. 



Quinqueloculina agglutinans d'Orbigny. 



Quinqueloculina agglutinans d'Orbigny, in De la Sagra, Hist. Fis. Pol. Nat. Cuba, "Foram- 

 iniferes," p. 195, plate 12, figs. 11 to 13, 1839. 



Occasional very typical specimens occur at Zone H, Rio Cana, and 

 at Bluffs 2 znd 3, Cercado de Mao, Santo Domingo. It may be noted 

 that these specimens are almost exactly like the figures given by 

 d'Orbigny rather than those of recent material given by later authors. 



