56 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.59. 



Typical P. mediterranensis is not definitely known from the West 

 Indian region in shallow water. Goes, in 1882, records and figures 

 two forms under the name Planorbulina farcta var. vmlgaris, of which 

 figure 227 seems most like P. mediterranensis or P. vulgaris. Figure 

 226, however, is P. acervalis H. B. Brady without any doubt. These 

 were both from the Caribbean. In 1896 Goes 8 records Planorhulina 

 again from the Caribbean as P. mediterranensis, and places his earlier 

 P. farcta, var. vulgaris as a synonym, but figure 226 as P. acervalis, 

 as noted above. Goes gives the following not very clear note (p. 74) : 



A pygmy form of this species is not seldom met with in the Caribbean Sea in 300 

 fathoms of water. A variety of higher development that Brady has described under 

 a separate denomination (P. acervalis) is also joined with the type, but of more rare 

 occurrence. 



As both forms occur together and one is a "pygmy form" it is 

 possible that this is but the young of P. acervalis; Flint 9 records 

 both species from the Gulf of Mexico, a single specimen of P. medi- 

 terranensis from Albatross station D2377, and P. acervalis from D2399 

 (number of specimens not given). The diameter of the former is 

 given as 1 mm., that of the latter 1.5-2.5 mm. The specimen given 

 as P. mediterranensis is evidently broken, from the evidence of the 

 figure. The accumulative evidence then shows that P. acervalis is 

 abundant in the West Indies and P. mediterranensis very rare or of 

 doubtful occurrence. 



Therefore it might seem from the incomplete evidence that 

 d'Orbigny's P. vulgaris might possibly be the same as P. acervalis 

 of Brady, and if so, would necessarily be used instead of acervalis 

 for this species. The only means of really settling the problem would 

 be the examination of the type specimens of P. vulgaris if they are 

 extant, but the problem is here raised for consideration. 



Genus TRUNCATULINA D'Orbigny, 1826. 



TRUNCATULINA ROSEA (d'Orbigny). 



Plate 13, figs. 1-3. 



Rosalina rosea d'Orbigny, Foram. Cuba, 1839, p. 72, pi. 3, figs. 9-11. 



This is typically a West Indian species described by d'Orbigny in 

 the Cuban Monograph and recorded but a few times since. It is 

 recorded from the shores of Cuba, Martinique, Guadeloupe, St. Thomas, 

 Jamaica, and Haiti. Flint records it from Puerto Rico. 10 In the 

 latter case, however, it is noteworthy that Flint records it only from 

 the shallowest station depths 4-7£ fathoms (7-15 meters), and not 

 in any of the others from 14f-23 fathoms (27-42 meters), indicating 



« Boll. Mus. Comp. Zool., vol. 29, 1S9G, p. 73. 

 J Ann. Kept. U. S. Nat. Mus., 1897 (1899), p. 328. 

 '» Bull. U. S. Fish Commission, 1900, p. 415-4H1. 



