FOBAMINIFERA OF THE ATLANTIC OCEAN. 



95 



LINGULINA CARINATA D'Orbigny. 



Plate 19, figs. 1, 2. 



Lingulina carinata D'Orbigny, Ann. Sci. Nat., vol. 7, 1826, p. 257, No. 1 ; 

 Modeles, No. 26; in Barker, Webb, and Berthelot, Hist. Nat. Isles Ca- 

 naries, vol. 2, pt. 2, Foraminif&res, 1839, p. 124, pi. 1, figs. 5, 6. — Goes 

 (part). Bull. Mils. Comp. Zool., vol. 29, 1896, p. 65.— Flint, Rep. U. S. 

 Nat. Mus., 1897 (1899), p. 312, pi. 58, fig. 3. 



Description. — Test elongate, tapering, much compressed, periphery 

 carinate, with a definite keel, which is continuous from the last- 

 formed chamber to the initial end ; chambers distinct, somewhat in- 

 flated, periphery not lobulate; sutures distinct, slightly depressed; 

 wall smooth ; aperture elongate, with lateral projections rising above 

 the apertural end of the test. 



Length up to 4 mm. 



Distribution. — D'Orbigny's type-specimens were from the Antilles, 

 probably from Cuba in shallow water. Flint had specimens from 

 Albatross station D2416, off the coast of Georgia, which I have 

 seen. They are young specimens and I have a similar specimen from 

 the same station. There is a much finer specimen in the collection 

 from off Ajax Reef, Florida, in 40 fathoms (73 meters). This would 

 seem to indicate that this species is well developed in this region in 

 comparatively shallow water. It is very doubtful if much of the 

 material from other regions referred to this species is really the 

 same. 



It is close to Lingulina grandis which I described from the 

 Philippine region. 



Lingulina carinata — material examined. 



LINGULINA SEMINUDA Hantken. 



Plate 17, figs. 8, 9, 11 ; pi. 18, figs. 1, 2. 



Lingulina costata D'Orbigny, var. seminuda Hantken, Mitth. Jahrb. ung. 

 geol. Anstalt, vol. 4, 1875, p. 41, pi. 4. figs. 8a, b. 



Lingulina carinata D'Orbigny, var. seminuda H. B. Brady, Rep. Voy. Chal- 

 lenger, Zoology, vol. 9, 1884, p. 518, pi. 65, figs. 14. 15.— Flint, Rep. 

 U. S. Nat. Mus., 1897 (1899), p. 312, pi. 58, fig. 4. 



Nodosarina carinata Goes (not D'Orbigny), Kongl. Svensk. Vet. Akad. 

 Handl., vol. 19. No. 4, 1882, p. 58, pi. 1, fig. 67 (not figs. 65, 66). 



