﻿MancJiester Memoirs, Vol. xlix. (1905), No. 5. 13 



slit as figured. The shell substance is opaque and 

 lustrous, almost iridescent." In the Delos examples of 

 this variety the aperture consists " of a small funnel- 

 shaped depression,'' as Mr. Millett states is sometimes 

 the case in the Malay specimens. The tests are partly 

 lustrous and partly transparent. Rare. 



Virgulina, d'Orbigny. 

 *Virgulina schreibersiana, Czjzek. (PI. 3, fig. 4.) 



Virgulifia sclireibersiana (Cz.), Egger ('93), p. 290, 

 pi. 8, figs. 93, 95. 



V. sclireibersiana (Cz.), Brady ('84), p. 414, pi- 52, 

 figs. 1-3. 



*Virgulina squamosa, d'Orbigny. (PL 3, fig. 5.) 



Virgulina squamosa (d'Orb.), Goes ('94), p. 47, pi. 9, 

 figs. 454, 456, 460. 



Virgulina squamosa (d'Orb.), Parker, Jones, and Brady 

 C65), p. 29, pi. 2, fig. 66. 



*Virgulina subsquamosa, Egger. 



Virgulina subsquamosa (Egger), Brady ('84), p. 4I5> 

 pi. 52, figs. 7-1 1. 



All the Delos examples of these three forms run into 

 each other, and show no line of demarcation. Some of 

 them agree very well with Brady's figures ('84), pi. 52, 

 figs. 1-3, of V. schreibersiana, while the one figured is a 

 shorter and stouter variety. These latter merge through 

 V. subsquamosa into the flat textularian form of V. 

 squamosa (PI. 3, fig. 5). The intermediate forms are 

 very frequent, the others rare. 



