FORAMINIFERA OF THE ATLANTIC OCEAN 119 



(1917), pp. 33, 45, 69, pi. 3, fig. 26. — Sidebottom, Journ. Roy. Micr. Soc, 

 1918, p. 255. — Halkyard, Mem. Proc. Manchester Lit. Philos. Soc, 

 vol. 62, pt. 2, 1918(1919), p. 116.— Cushman, Proc. U. S. Nat. Mus., 

 vol. 56, 1919, p. 627.— Martinotti, Atti Soc. Ital. Sci. Nat., vol. 59, 

 1920, p. 333. — Clodius, Archiv. Ver. Freunde Nat. Mecklenburg, 75 

 Jahr., 1922, p. 132.— Cushman, Contrib. Canadian Biol., 1921 (1922), 

 p. 12. — Heron-Allen and Earland, Bull. Soc. Sci. Hist. Nat. Corse, 

 1922, p. 137; British Antarctic Exped., Zool., vol. 6, 1922, p. 208; Journ. 

 Linn. Soc. Zool., vol. 35, 1924, p. 635. — Paalzow, Ber. OfFenb. Ver. Nat., 

 1912-1924(1924), p. 26, pi. 2, figs. 9a, 6.— Heron-Allen and Earland, 

 Journ. Ro3\ Micr. Soc, 1924, p. 175. — Applin, Bull. Anier. Assoc. Petr. 

 Geol., vol. 9, 1925, p. 25. — Hanzawa, Jap. Journ. Geol. Pal., vol. 4, 1925 

 (1926), p. 43 (table).— Martinotti, Boll. R. Officio geol. Ital., vol. 51, 

 1926, p. 3 (list). — Yabe and Hanzawa, Jap. Journ. Geol. Pal., vol. 4, 1925 

 (1926), p. 52.— Koch, Ber. Schweiz. Pal. Ges., vol. 19, No. 3, 1926, p. 

 747. — Casasnovas, Not. Y. Res. Instit. Esp. Ocean., ser. 2, No. 29, 1928, 

 p. 7. — Nuttall, Quart. Journ. Geol. Soc, vol. 84, 1928, p. 98. — Heron- 

 Allen and Earland, Journ. Roy. Micr. Soc, 1930, p. 187. 



Planorbulina farcata, var. (Truncatulina) lobatula Parker and Jones, 

 Philos. Trans., vol. 155, 1865, p. 381, pi. 14, figs. 3-6; pi. 16, figs. 18-20. 



Planorbulina lobatula Goes, Kongl. Svensk. Vet. Akad. Handl., vol. 25, 

 No. 9, 1894, p. 88, pi. 15, fig. 774. 



Truncatulina miquelonensis d'Orbigny, Ann. Sci. Nat., vol. 7, 1826, p. 279, 

 No. 7. — FoRNASiNi, Mem. R. Accad. Sci. Istit. Bologna, ser. 6, vol. 3, 1906, 

 p. 69, pi. 4, fig. 9. 



Test plano-convex, typically adherent by the dorsal side, dorsal 

 face flattened or concave, ventral side moderately convex, peripheral 

 margin acute or rounded, slightly keeled; chambers numerous, 

 usually seven in the last-formed whorl; sutures distinct, depressed 

 slightly on the ventral side, flush and limbate on the dorsal side, on 

 the ventral side nearly radial, dorsal ones curved; wall usually 

 smooth, but sometimes ornamented with thickenings especially on 

 the ventral side, rather coarsely perforate; aperture at the periphery 

 and extending over and along the inner margin of the chamber on 

 the dorsal side. 



Diameter up to 1.2 mm.; thickness up to 0.35 mm. 



This is a very common species in cool waters attached to hydroid 

 stems, algae and almost any sort of support. It often comes in on 

 northern beaches in considerable numbers after storms. There is 

 considerable variation in the species, but the variation seems to be 

 within very definite limits. There are various other names used by 

 Terquem and others for this species. 

 2305—31 9 



