G42 ' MESSES. E. HEEON-ALLEN AND A. EAELAND ON THE 



4 Stations. 



The typical B. convohda occurs at only 4 Stns., good specimens at Stns. 1 and 4, 

 and a single test at Stns. 10 and 11. The specimens are quite normal and typical. 



209. Bulimina convoluta, var. nitida Millett. 



Bulimina convoluta, var. mtidaWiWett, 1898, etc., FM. 1900, p. 280, pi. ii. fig. 10. 



Sidebottom, 1904, etc., RFD. 1905, p. 12, pi. iii. fig. 3. 



15 Stations. 



This occurs at every Stn., except 7 and 8 ; the best at Stns. 1 and 12, very rare at 

 Stns. 2, 3, 5, and 11. They all agree with Millett's description and figure, except 

 in the appearance of the shell-vi'all. He describes the shell-substance as " opaque and 

 lustrous, almost iridescent " ; the Kerimba specimens, however, are characterized by a 

 peculiar opalescent shell-wall, dappled with patches of absolutely hyaline shell, which 

 appear black by contrast with their surroundings. The variety is widely distributed, 

 but appears to be confined to tropical waters, whereas the type-species is of practically 

 world-wide distribution, though always rare. 



210. Bulimina squanimigera d'Orbigny. (PI. XLVIII. figs. 31-35.) 



Bulimina squanimigera d'Orbigny, 1839, FIC. p. 137, pi. i. figs. 22-24.. 



Polymorphina appula Costa, 1853, etc., PEN. 1856, p. 286 (error for 283), pi. xviii. fig. 17. 



Bulimina squamigera (sic) Siddal), 1878, FRD. p. 49. 



Earlaiid, 1905, FBS. p. 207. 



Heron-Allen & Earland, 1913, CI. p. 61. 



9 Stations. 



Sparingly distributed at many Stns., the best individuals at Stns. 7 and 12. 



YiEGULiNA d'Orbigny. 



211. Virgulina sdireibersiana Czjzek. (Pi. XLIX. figs. 1-12.) 



Virgulina schreibersiana Czjzek, 1848, FWB. p. 147, pi. xiii. figs. 18-21. 



Fulymorphina longissima Costa, 1853, etc., PRN. 1856, pi. xiii. figs. 2.2, 23. 



Bulimina presli, \ar. [Virgulina) schreibersii Parker & Jones, 1865, NAAF. p. 375, pi. xv. 



fig. 18; pi. xvii. figs. 72, 73. 

 Virgulina scfi?-eibersiana Brady, 1884, FC. p. 414, pi. lii. figs. 1-3. 



Egger, 1893, FG. p. 290, pi. viii. figs. 93, 95. 



Goes, 1894, ASF. p. 48, pi. ix. figs. 459, 461-472. 



Herou-AUen & Earland, 1908, etc., SB. 1910, p. 409, pi. vi. fig. 13. 



13 Stations. 



Almost universally distributed. Although never abundant, this species exhibits an 

 extraordinary diversity in development and construction. The original type of Czjzek, 

 marked by slightly swollen chambers and a somewhat small and inconspicuous aperture, 

 is very rare, and occurs only at Stn. 7. The form gen(;rally assumed throughout the 

 aalherings is a broad-mouthed, somewhat compressed, but regular-chambered type, 



