no. 2360. FORAMINIFERA FROM JAMAICA— CUSHMAN. 55 



GLOBIGERINA RUBRA d'Orbigny. 



Plate 12, fig. 6. 

 Globu/erina rubra d'Orbigny, Foram. Cuba, 1839, p. 82, pi. 4, figs. 12-14. 



The only specimens of this species are from Montego Bay, stations 

 4 and 6. Specimens are not at all common in spite of the fact that 

 the species is very common in the general region in deeper water. 

 D'Orbigny describes it from shore sands of Cuba, and also recorded 

 it from Jamaica, Guadeloupe, and Martinique. Specimens both with 

 and without the reddish coloring occur in the material, the form 

 alone being sufficient to determine the species. The West Indian 

 material of this species has a peculiar deep red color; but, although 

 the species is recorded from the Pacific, while it often has a similar 

 form, it almost invariably lacks the color. 



GLOBIGERINA DUTERTREI d'Orbigny. 



Plate 12, fig. 7. 

 Globigerina dutertrei d'Orbigny, Foram. Cuba, 1S39, p. 84, pi. 4, figs. 19-21. 



D'Orbigny described this species from Cuba and recorded it also 

 from Martinique and Guadeloupe. It occurred at Montego Bay, at 

 stations 4 and 6, and also at Runaway Bay. It is now known to be 

 widely distributed. 



Family ROTALIIDAE. 



Genus PLANORBULINA d'Orbigny, 1826. 



PLANORBULINA ACEJRVALIS H. B. Brady. 



Plate 12, fig. 8. 



Planorbulina acervalis H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1334, 

 p. 657, pi. 92, fig. 4. 



Somewhat of a problem is presented by the Jamaican specimens of 

 Planorbulina. All the material — and it is abundant — seems very 

 definitely to be P. acervalis. In the Cuban Monograph d'Orbigny 

 describes P. vulgaris, which seems from the figures and notes to be 

 identical with P. mediterranensis d'Orbigny, described in 1826, 

 Neither species as figured by d'Orbigny seems like actual material I 

 have examined, and one is brought to the conclusion that the regular 

 spiral condition shown is due to the conventionalizing of the draw- 

 ings. The Cuban specimen is evidently curved and seemingly an 

 attached form. At Montego Bay the most abundant locality for 

 Planorbulina was the short eel grass of the protected areas behind 

 the Bogue Islands. There it was in great numbers attached to the 

 eel grass. It was, however, also found at stations 2, 4, 5. (3, and at 

 Runaway Bay. 



