EULIM^^XLA. 313 



E, AFFiNis, Philippi. 



Slenderly subulate, thin, transparent, imperforate ; whorls eight 

 or nine, more or less rounded ; mouth only a fourth or a fifth of 

 the entire length ; apex fine and exserted : basal declination much 

 rounded. 



Plate XCVIII. fig. 7. 



Eulima affinis, Philippi, Moll. Sicil. vol. ii. p. 135, pi. 24, f. 7 (fossil). 

 Pyramis Icevis, Brown, 111. Conch. G. B. p. 14, pi. 9, f. 51, 52 ? 

 Eulimella gracilis, Jkffreys, Ann. Nat. Hist. vol. xix. p. 311. 

 Odostomia affinis, Jeffreys, Ann. Nat. Hist, (new ser.) vol. ii. p. 350. 



The identification of the smaller recent species with their 

 supposed fossil analogues, without the direct comparison of 

 typical examples, must ever be attended with some degree 

 of uncertainty. The great attention bestowed by Mr. 

 Jeffreys on the members of this genus induces us to follow 

 his identification. 



The shell is of a shining white, thin, semitransparent, 

 quite smooth, and of a slenderly subulate form. The 

 spire, which is often arcuated, is usually quadruple the 

 length of the body, and composed of seven ventricose 

 volutions, besides the fine and exserted heterostrophe apical 

 coil. The whorls, which are deeply divided by a simple 

 sutural line, are moderately high (at least the penult is, 

 its length being to its breadth as three to five), and of 

 rather slow longitudinal increase. The body, which is 

 nearly as broad as it is long, is well rounded, especially at 

 its basal declination ; there is no vestige of an axial perfo- 

 ration. The mouth is devoid of sculpture, and fills a fourth 

 or a fifth only (the latter in the adult) of the ventral 

 length ; its foi-m is subovate, but is rather abruptly con- 

 tracted by the swell of the penult turn above, below it is 

 rounded, but not broadly so. The outer lip is simple, 



VOL. 111. s s 



