FOSSIL FORAMINIFERA FROM THE WEST INDIES. 45 



described by d'Orbigny from Cuba in 1839. The exact proportions 

 and relations of the chambers that are shown in d'Orbigny's figures are 

 found in the fossil specimens. The species is known from the Miocene 

 of Florida and Virginia, and probably occurs in Panama as well. It is 

 a common species in the Indo-Pacific. 



Rotalia species. 

 (Plate 8, Figure 6.) 



A small, close-coiled, rotaliform species with numerous chambers in 

 each volution occurs at a number of the Cuban stations, as follows: 

 7512, Ocujal; 7513, orbitoidal limestone, outcrop where Palmer Trail 

 joins Ocujal Trail; 7516, west end, Los Melones Mountain; 7519, from 

 drift near top of landslide next north of Los Melones; and 7543, lime- 

 stone outcrop, east side of Yateras; all collected by O. E. Meinzer. 



Asterigerina carinata d'Orbigny. 



Asterigerina carinata d'Orbigny, in De la Sagra, Hist, Fis. Pol. Nat. Cuba, 1839, "Foramin- 

 iferes," p. 118, plate 5, fig. 25, plate 6, figs. 1, 2. 



A very typical specimen came from Bluff 2, Cercado de Mao, Santo 

 Domingo. 



Asterigerina angulata, new species. 

 (Plate 13, Figure 1.) 



The following is a description of this species: 



Test free, rotaliform, dorsal side very slightly convex, ventral side high, 

 acutely angled at the peripheral edge but not carinate; last-formed whorl with 

 typically about 15 chambers; sutures on the dorsal side obliquely recurved, 

 of clearer material than the chamber walls, occasionally with a slight bead- 

 like enlargement on the inner border, earlier whorls slightly exposed and the 

 umbonate region with a transparent clear area; ventral side with the sutures 

 ending in an angle about midway between the center and the periphery, from 

 which a secondary chamber is developed to the umbilical region, alternating 

 with the main chambers; umbilical region solid, of clearer shell material; 

 aperture rather long and narrow at the inner margin of the ventral face; 

 surface granular or slightly papillate, especially about the aperture. 



Average diameter 1.5 to 2 mm. 



Specimens of Asterigerina angulata are frequent or abundant at the 

 four stations Zones H and I, Rio Cana, and Bluffs 2 and 3, Cercado 

 de Mao, Santo Domingo. 



It is thicker species than A. carinata d'Orbigny; and it has an acute 

 but not carinate angle and nearly double the number of chambers. 



Asterigerina rotundata, new species. 

 (Plate 13, Figure 2.) 



The following is a description of this species: 



Test free, rotaliform, biconvex, dorsal side less convex than the ventral, 

 peripheral angle broadly rounded; last-formed coil with 15 to 18 chambers; 

 sutures on the dorsal side gently recurved, slightly limbate, earlier whorls 

 exposed and forming nearly half the width of the dorsal side of the test 



