RIMULA. 269 



E. Icevicostata AD., P. Z. S. 1851, p. 57, no. 37. SOWB. Thes., p. 

 216, f. 57. 



E. BELLA Gabb. Unfyured. 



Monterey, Cal. 

 E. bella GABB, Proc. Cal. Acad. iii, p. 188, 1865. 



Section Nesta H. Adams, 1870. 



Nesta AD. P. Z. S. 1870, p. 5. 



Shell oblong-oval, convex above ; apex terminal, subincurved y 

 outside decussated; dorsal sulcus ending in a fissure; margin of 

 aperture crenulated. (Ad.) 



E. NESTA Pilsbry. PI. 28, fig. 10. 



Shell oblong-oval, thin ; beautifully decussated with elevated very 

 delicate concentric and radiating lirulse ; snowy-white ; dorsal sulcus 

 with distinct sides, transversely striated ; front fissure strong ; margin 

 of aperture a little thickened behind, delicately crenulated all 

 around. Length 5J, width 3, alt. If mill. (Ad.) 



Red Sea. 



Nesta Candida H. AD. P. Z. S. 1870, p. 5, t. 1, f. 1, la ; not Emar- 

 ginula Candida Ad. 



I am compelled to change the name of this shell as Candida has 

 been used several times in Emarginula. I fail to see that Nesta has 

 any generic characters. It is simply an Emarginula in which the 

 recurved apex is bent down more than usual. 



? Section Emarginella Pilsbry, 1891. 



Founded on E. cuvieri Aud. The animal is black, very volumi- 

 nous, mantle extending far over the borders of the foot and parti- 

 ally enveloping the shell ; epipodial papillae well-developed. Shell 

 coarsely latticed. 



E. CUVIERI Audouin. PI. 64. fig. 32. 



SAVIGNY, Descrip. de 1'Egypte., Coq. t. 3, f. 2. 1, 2. 2, 2. 3, 2. 4, 2. 

 5, 2. 6, 2. 7. Emarginula cuvieri Audouin, ISSEL, Mai. Mar Rosso, 

 p. 316. E. cuvieri COOKE, Ann. Mag. N. H 1885, xvi, p. 271, 

 (E. clypeus Ad. and planulata Ad. said to be the same.) 



Red Sea ; Gulf of Suez. 



Subgenus RIMULA Defrance, 1827. 



Rimula (Rimulaire or Rimule) DEFRANCE, Diet, des Sci. Nat. 

 XLV, p. 471, 472. Type R. blainvillii Defr., I. c. p. 472, t. 48 bis., 

 f. 1, la, Ib. 



