FORAMINIFEilA OF THE ATLANTIC OCEAN 61 



Miliolina labiosa H. B. Brady. Rep. Voy. Challenger, Zoology, vol. 9, 1884, 

 p. 170, pi. 6, figs. 3-5. 



Test much broader than long; surface largely composed of the two 

 last-formed chambers; chambers often somewhat irregular; periphery- 

 rounded; surface smooth, but dull; aperture crescentiform, with a 

 somewhat triangular tooth, placed somewhat back from the aperture. 



Diameter, 0.60 mm.; thickness, 0.20 mm. 



D'Orbigny described this species from Cuba, and similar specimens 

 occur in the general West Indian region as well as elsewhere. A 

 typical specimen from the Tortugas is figured and another specimen 

 from off the coast of Ireland which may be this species. 



TRILOCULINA ANCONENSIS SchuUze 



Plate 16, Figure 4 



Miliolina anconensis Schultze, Organ. Polythal., 1854, p. 58, pi. 2, figs. 12, 

 13. — Heron-Allen and Earland, Trans. Zool. Soc. London, vol. 20, 

 1915, p. 568; Trans. Linn. Soc. Zool., ser. 2, vol. 11, 1916, p. 211. 



Heron-Allen and Earland refer specimens from the west coast of 

 Scotland to this species described by Schultze from ofT Ancona. The 

 figure is after the type figure of Schultze. 



TRILOCULINA VALVULARIS Reuss 



Heron- Allen and Earland ^ record this species from the Clare Island 

 region of Ireland as follows: 



A few undoubted examples of this form, in which the aperture is narrowed to 

 a slit by the presence of an enlarged plate, instead of the usual tooth were 

 observed at station 36. Specimens of M[iliolina] subrotunda exhibiting a tend- 

 ency toward M. valvularis were observed at six or seven other stations. It has 

 previously been recorded from British waters only by Mr. Pearcey from the 

 Faroe Channel. 



Reuss originally described the species from the Oligocene near 

 Berlin. 



TRILOCULINA PELLUCIDA (Egger) 



Miliolina pellucida Egger, Abhandl. kon. bay. Akad. Wiss. Miinchen, CI. II, 

 vol. 18, 1893, p. 229, pi. 2, figs. 7-12. 

 Among other locahties for this species Egger includes a station from 

 677 meters off the west coast of Africa. I examined the type of this 

 species in Munich. It is a very thin fragile form. 



, SPECIES WITH COSTATE EXTERIOR 



TRILOCULINA LINNEIANA d'Orbigny 



Plate 16, Figures 1, 2 

 Triloculina linneiana d'Orbigny, in De la Sagra, Hist. Fis. Pol. Nat. Cuba, 

 1839, "Foraminiferes," p. 172, pi. 9, figs. 11-13.— Cushman, Bull. 71, U. S. 

 Nat. Mus., pt. 6, 1917, p. 72, pi. 27, fig. 4; Proc. U. S. Nat. Mus., vol. 59, 

 1921, p. 70, pi. 17, figs. 3, 4; Publ. 311, Carnegie Instit. Washington, 1922, 

 p. 75. 

 8 Proc. Roy. Irish Acad., vol. 31, pt. 64, 1913, p. 27. 



