6U4 BIESSRS. E. HERON-ALLEN AND A. EARLAND ON 
13. Spikolocitlina tenuirostra Karrer. (PI. 35. figs. 6, 7.) 
Spiroloculina tenuirostra Karrer, 1867, FO. p. 358, pi. 2. fig. 5. 
„ acutimargo Brady, 1884, FC. p. 154, pi. 10. fig. 14 (only). 
Egger, 1893, FG. p. 222, pi. 1. figs. 26-28. 
A single specimen, identical with Egger's figure of S. acutimargo Brady. 
Under this name Brady figures three distinctive forms. Fig. 12 is clearly 
S. affixa Terquem. Figs. 13 and 15 are what we may regard as S. acutimargo 
proper. Fig. 14 is a quite distinctive little shell which Cushman (0. 19^21, 
FP. p. 398), under S. acutimargo, Siiirihuies to the gen-as Massilina. It is the 
same as Egger's figure and is in our opinion attributable to S. tenuirostra 
Karrer, the distinctive features of which are a sharp angular edge to the thin 
embracing chambers, almost meeting over the faces of the shell. In our 
specimen the embracing character is so marked that the two final chambers 
with their flanges envelop the entire face, and the separate chambers are only 
visible where the surface of the test is abraded. We have observed this form 
in many tropical coral sands. 
MiLiOLiNA Williamson. 
14. MiLiOLlNA ciRCULARis [Bomemann). 
Triloculina circidaris Bornemann, 1855, FSH. p. 349, pi. 19. fig. 4. 
MilioUna „ Brady, 1S84, FC. p. 169, pi. 4. fig. 3 ; pi. v. figs. 13, 14 (?). 
Heron- Allen' & Earland, 1914-15, FKA. p. 557. 
Abundant, and very variable in size. Both biloculine and triloculine forms, 
as figured by Millett (M. 1898, etc., FM. 1898, p. 499, pi. 11. figs. 1-3), the 
biloculine being relatively rare. 
15. MiLIOLINA VALVtJLARIS (Eeuss). 
Triloculina valvularis Eeuss, 1851, FSUB. p. 85, pi. 7. fig. 56. 
MilioUna „ Brady, 1884, FC. p. 161, pi. 4. figs. 4, 5. 
„ Heron-Allen & Earland, 1913, CI. p. 27. 
Fairly frequent, but small. 
16. MiLIOLINA DILATATA (d' Orbigni/). 
Quinqiieloculina dilatata d'Orbigny, 1839, FC. p. 192, pi. 11. figs. 28-30. 
Sohlumberger, 1893, MGM. p. 75, text-figs. 29, 30, 
pi. 3. figs. 70-74; pi. 4. figs. 87-90. 
MilioUna „ Heron-Allen & Earland, 1914-15, FKA. p. 559. 
Two large characteristic individuals. 
17. MiLIOLINA LABIOSA (d^ Orhigny) . ' 
Triloculina lahiosa d'Orbigny, 1839, FC. p. 178, pi. 10. figs. 12-14. 
MilioUna „ Brady, 1884, FC. p. 170, pi. 6. figs. 3-5. 
„ Millett, 1898, etc., FM. 1898, p. 502, pi. 11. figs. 8, 9. 
Rare, but typical. 
