FORAMINIFERA OF THE ATLANTIC OCEAN. 83 



NODOSARIA COMATULA, new species. 



Plate 14, fig. 5. 



Nodosaria comafa H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 0, 1884, 

 p. 509, pi. 64, figs. 1-5.— Goes, Bull. Mus. Comp. Zool., vol. 29, 1896, p. 

 60.— Flint, Rep. U. S. Nat. Mus., 1897 (1899), p. 311, pi. 57, fig. 3.— 

 Chapman, The Foraminifera. 1902, p. 402. — Millett, Journ. Roy. 

 Micr. Soc, 1902, p. 512, pi. 11, fig. 2. 



Nodosaria radicula (Linnaeus), var. raphanus Goes, Kongl. Svensk. Vet. 

 Akad. Handl., vol. 19, No. 4, 1882, pi. 1, figs. 9, 10. 



Description. — Test short and stout, composed of a few chambers, 

 initial end broadly rounded, sometimes with a small central spine, 

 apertural end slightly tapering; chambers inflated, giving a some- 

 what lobulate appearance to the periphery; sutures distinct, some- 

 what depressed; surface ornamented by numerous low, rounded, 

 longitudinal costae, close together, 35-45 in the last-formed chamber 

 of the adult, continuous from one chamber to another, in the adult 

 the apertural end of the last- formed chamber sometimes smooth; 

 aperture central, terminal, radiate. 



Length up to 1 mm. 



Distrihution.—Ty^e-sipecimen (U.S.N.M. Cat. No. 17823) from 

 Albatross station D2377, in 210 fathoms (384 meters), in the Gulf 

 of Mexico. The species is fairly frequent in the northern part of 

 the Gulf of Mexico at depths of 100-300 fathoms (183-549 meters). 

 There is a single specimen from a station off the coast of Georgia. 

 Flint had specimens from both these regions. Goes had specimens 

 from the Caribbean, 300-400 fathoms (549-732 meters). Brady's 

 records for Nodosaria comata are as follows : " Somewhat plenti- 

 fully off Bermuda, 435 fathoms (796 meters) ; and more sparingly 

 off Culebra Island, West Indies, 390 fathoms (713 meters) ; off Som- 

 brero Island, West Indies, 450 fathoms (823 meters) ; and in har- 

 bour-mud from Port Louis, Mauritius." Chapman records it as 

 frequent in 200 fathoms (366 meters) outside the Funafuti Reef 

 and Millett as occurring in great abundance in the Malay Archi- 

 pelago. 



I failed to find it in the collections I had from the North Pacific 

 and, more surprisingly, it did not appear in all the rich collections 

 I examined from the Philippines and adjacent regions where Nodo- 

 saria was so abundant. 



It would seem, therefore, that we have here a species distinct from 

 either N. comata (Batsch) or from N. glans D'Orbigny, This new 

 species, N. comatula., has a distinctly lobed peripher}', the chambers 

 being distinct, the costae close-set but rounded, and very numerous. 

 Its habitat is in the Western Atlantic in warm waters of 100-400 

 fathoms (183-732 meters) or more, and possibly in the Indo-Pacific. 



