3G6 



^Ir. E. A. Smith on the Genera 



The followiiifT species liave been placed in Er/Ilsia, but 

 they 00 not in reality belong to that genus: — 



1. /■(jU''iit s'lhdecussadi (Cantraine), Fi-selier, Actes See. Linn. 



Hordeanx, vol. xxvii. j). 115 (18G9). 



This species is now referred to Mesalia. 



2. E(jlisia nincandrecc, H. Adams, Proc. Zool. Soc. 18G5, 



p. 753. 



Regarded as a variety of Mathilda quadricarlnata (Brocchi), 

 and placed in the Pyramidellidre. Sacco has created a 

 family Mathildidae for this genus. 



3. TunheUa [Ei/lisia) si/mmetrtca, llutton, Cat. Marine 



M.dl. New Zeal. p. 30 (1873). 

 Eglisia symmetrica, id. Journ. de Concb. 1878, vol. xxvi, p. 29. 



This is a true Turrittlla. 



18J0. Mesalia, 

 1842. Mesalia, 

 1847. Mesalia, 



Desh. 

 1849. Mesalia, 

 1852. Mesalia, 

 1854. Mesalia, 

 1857. Mesalia, 

 1859. Mesalia, 

 1878. Mesalia, 

 188.3. Mesalia, 

 1885. Mesalia, 

 1887. Mesalia, 



Mesalia, Gray. 



Gray, Synop;is Contents Brit. Mus. p. 147 (name only). 



id. op. cit. ed. 44, p. 01. 



id. Proc. Zool. Soc. 1847, p. 155. For Turritella mesal, 



Reeve, Conch. Icon. vol. v. 

 Sowerby, Conch. Man. ed. 4, p. 200. 

 H. & A. Adams, Gen. Kec. Moll. vol. i. p. 

 Gray, Guide Moll. Brit. Mus. p. 111. 

 Chenu, Man. Conchyl. vol. i. p. 317. 

 Kobelt, lllust. Conchylienbucli, p. 138. 

 Tryou, Struct. Syst. Conch, vol. ii. p. 224. 

 Fi>cher, Man. Conchyl. p. 694. 

 Tryon, Man. Conch, vol. viii. p. 193. 



353. 



As in the case of Eglisia^ the introduction of this genus 

 must date from 1847, when a species was first associated 

 with it. 



Gray (Proc. Zool. Soc. 1847, p. 155) quoted, as examples 

 of his genus, Cerithium mesal, Aclawsow =^ Turritella mesal, 

 Deshayes, a Turritella sp., and T. sulcata, Lamk. He 

 evidently considered the shell described by Adanson as the 

 type of his genus, since he founded the name upon that 

 .'Species. Jeffreys*, therefore, was quite wrong in stating 

 tliat " the type of Gray's genus is Turrittlla sulcata of 

 Lamarck, a Grignon or Eocene £ issil." 



Mesalia may be separated from Turrilellahy ceitain features 



* Troc. Zool. Soc. 1884, p. 132. 



