66 BULLETIN 161, UNITED STATES NATIONAL MUSEUM 



Table 23. — Pyrgo glooula — material examined 



1 Key to abbreviations is given in Table 1. 



PYRGO MILLETTII (Cushman) 



Plate 15, Figures 4, 5 



Miliolina durandii Millett (part), Journ. Roy. Micr. Soc, 1898, p. 268, pi. 6, 

 figs. 8-10 (not fig. 7). — Heron-Allen and Eabland, Trans. Zool. Soc. Lon- 

 don, vol. 20, p. 565, pi. 42, figs. 11-16, 1915. 



Bilooulina millettii Cushman, U. S. Nat. Mus. Bull. 71, pt. 6, p. 81, pi.. 34, 

 figs. 4, 5, 1917 ; Carnegie Inst. Washington, Publ. 311, p. 77, 1922 ; Publ. 342, 

 p. 71, 1924. 



Pyrgo millettii Cushman, U. S. Nat. Mus. Bull. 104, pt. 6, p. 68, pi. 19, fig. 1, 

 1929. 



Test in front view, broadly elliptical, in end view, compressed; 

 chambers biconvex; the periphery with a definitely developed carina; 

 wall smooth, except for occasional transverse ribs usually indistinct ; 

 aperture slightly produced, broadly elliptical, with a slightly thick- 

 ened border joining the carina at its outer edge; the aperture with 

 a small bifid tooth. 



This is a typical Indo-Pacific species of wide distribution and ap- 

 parently extends to the West Indies region, where it is known only 

 from the Tortugas. In the Pacific it is recorded as follows : Malay 

 Archipelago (Millett) ; Kerimba Archipelago, southeast Africa, 

 Burma, Queensland, Java, Macassar, and Tahiti (Heron-Allen and 



