94 BULLETIN 104, UNITED STATES NATIONAL MUSEUM. 



LINGULINA QUADRATA Heron-Allen and Earland. 



Plate 17, fig. 12. 



LinyxiUna quadrata Heron-Alt.en and Earland, Proc. Roy. Irish Acad., 

 vol. 31, pt. 64, 1913, p. 95, pi. 8, fig. 11. 



Description. — " Test bilocular, highly compressed, quadrate and 

 carinate, the final chamber drawn out sometimes at the apex, which 

 is either simple or furnished with an entosolenian tube. The line of 

 suture between the two chambers is slightly depressed and curved at 

 the marginal edges toward the base of the shell. 



"Length 0.16 mm.; breadth 0.13 mm." 



Distribution. — Heron-Allen and Earland described this species 

 from the Clare Island region and recorded it also from Noss Head, 

 in the Moray Firth, and at several other Goldseeker stations about 

 the British Isles, but always rare. 



This is a peculiar little species which has its relations with the 

 entosolenian Lagenas rather than elsewhere. 



LINGULINA BILOCULI Wrieht. 



Plate 18, figs. 3-5. 



Linffulina carinata D'Obbigny, var. biloculi Wkight, Rep. Belfast Nat. Field 



Club, ser. 2, vol. 3, No. 6, 1910 (1911), App. No. 2, p. 13. pi. 2, fig. 10. 

 lAngulina hilocvli Hebon-Allen and Earland, Proc. Roy. Irish Acad., vol. 



31, pt. 64, 1913, p. 94, pi. 8, figs. 5-7 ; Trans. Linn. Soc. London, ser. 2. 



vol. 11, 1916, p. 259. 

 LinguUna carinata Sidebottom (part), Mem. Proc. Manchester Lit. Philos. 



Soc, vol. 51, No. 9, 1907, p. 3, pi. 1, figs. 18, 19. 



Description. — Test more or less compressed, composed of 2 and 

 sometimes 3 chambers, periphery rounded, basal end rounded or 

 slightly truncate; suture distinct, slightly depressed, somewhat lim- 

 bate; wall smooth, thin, finely punctate; aperture elliptical, small, 

 or with an entosolenian tube. 



Length about 0.15 mm. 



Distribution. — Wright originally described this species from the 

 Estuarine Clays of Ireland. Heron-Allen and Earland have re- 

 corded it from off the coast of Ireland, in the Clare Island region, 

 off the west of Scotland, and note that they have found it in several 

 Goldseeker dredgings and that " it will probably be found to occur 

 in muddy shallow-water deposits all round the western coast of Scot- 

 land and Ireland." It does not occur in the western Atlantic ma- 

 terial. 



