3C.2 



Mr. E. A. Smith on the Gen'i. 



but, being tliinner shells, they have the appearance of cracks 

 lather tliaii varices. 



The general form of tlie sliells and the spiral liration or 

 carinatioii, and also the coloration, show relationship with 

 TunittUa rather than with Epitonium, and the only concho- 

 loi^ical difference occurs in respect of the aperture. In 

 Ei]lisia the pt^ristome is distinctly continuous, as in E, spi- 

 rala and tricurinnia, or the columella is joined to the outer 

 lip by a thin callus as in lanceolaia and elegans. Tiie arched 

 columella also is thickened and reflcxed. 



In 2'urritella the columella is thin and usuall}^ separated 

 from the end of the outer lip. Occasionally, however, a thin 

 connecting callus is present in some species. 



Another feature common to all the Eglisias is the base of 

 the body-whorl being marked off by a keel and the very fine 

 sculpture upon it, of quite a dill'ereut cliaracter from that on 

 the rest of the shell. 



I am now able, through the kindness of Mr. J. R. Le B. 

 Tomlin, who possesses a specimen of E. spirata with the 

 operculum in situ, to describe that feature. 



It is horny, roundly ovate, almost black, and consists of 

 about 3-4 not clearly defined, very rapidly increasing whorls, 

 the pit-like nucleus being markedly excentric. It is slightly 



Fi<r. 1. 



concave externally and sculptured with well-marked very 

 arcuite lines of growth. In fact, it closely resemhles tiie 

 ojjercula of Epitvniian and Meaaha, both of which are 

 paucispiral, and not multispiral as in Turritella*. 



EgJisia spirata (Sowerby) . 



1825. Turritella spirata, Sowerby, Cat. Tankerville, Appendix, p. xiv, 

 184!). E'jlisia spirata: Keeve, Conoh. Icon. vol. v. pi. i. fig. 1. 

 18o2. E(/lesia (sic) spirata : Sowerby, Conch. Man. p. 337, pi. xxviii. 

 lig. o{i2. 



* Since the above was in type, I have heard from Professor H. M. 

 Gwatkin that, judging from the radiila, " EfjHsia spiiata is a clear 

 iSffl/flr/o." 



