FORAMINIFERA OF THE ATLANTIC OCEAN. 



83 



TROCHAMMINA CONGLOBATA H. B. Brady. 



Plate 17, fig. 3. 



Trochammina roiighhata II. B. BnAnv, Rep. Voy. Challenger. Zoology, vol. 0. 

 1881. p. 341, pi. 40, flg^. 8 9.— Goes, Bull. Tkius. Comp. Zool.. vol. 29, 1896, 

 p. 33.— Flixt, Ann. Rep. U. S. Nat. Mus., 1897 (1899). p. 281, pi. 26, Cg. 2. 



Descn])tion. — Te.st convoluted, subglobiilar, composed of an irregu- 

 larly coiled test, the coils in a constantly changing direction but 

 close coiled, chambers distinct, of unequal size, inflated; wall finely 

 arenaceous with abundant cement, smootli; a])erture a narrow slit 

 at the base of the last-formed chamber; color yellowish brown. 



Diameter 1-2 mm. 



Distnhntion. — This species is known only from the western Atlantic, 

 the kno\\'n range being from the Gulf of Mexico to the coast of 

 Brazil witli the following records: Challenger 23, in 450 fathoms (823 

 meters) ofi" Sombrero Island, West Indies; 120 in 675 fathoms (1,234 

 meters) off Pernambuco, Brazil. Goes records it from Albatross 

 H515 in 769 fathoms (1,406 meters) off western Cuba and D2355 in 

 399 fathoms (730 meters) off Yucatan. Flint records it from D2395 

 in 347 fathoms (635 meters) in the Gulf of Mexico. I have seen addi- 

 tional material from D2760 in 1,019 fathoms (1,864 meters) off Bahia, 

 Brazil, and H215 off tlie southeastern coast of Cuba. 



The species is in some respects allied to Haplophragmoides coronata 

 especially in the character of the wall. From its coiled condition it 

 might as well be placed in Haplojiliragmoides but I have left it in 

 Trochammina for the present. 



Its range corresponds to that of a number of other species; Gulf 

 of Mexico, the West Indies and Caribbean and the tropical coast of 

 South America. 



Trochammina conglobata — material examined. 



Genus GLOBOTEXTULARIA Eimer and Fickert, 1899. 



Ilaplophragmium (part) H. B. Brady, Rep. Voy. Challenger, Zoolog}% vol. 9, 



1884, p. 313. 

 Globotextularia Eimer and Fickert, Zeitschr, Wiss. Zool., vol. 65, 1899, p, 



679. (Type, G. anceps (H. B. Brady)).— Cusuman, Bull. 71, U. S. Nat. 



Mu3., pt. 1, 1910, p. 125. 



