EIMULA.— Plate I. 



thin, close ribs, with interstices very minutely 

 fitted ; apex strongly recurved, flatly keeled. 



A. Adams. Proc. Zool. Soc, 1851. 



Hah. Misamis, Isl. Mindinao, Philippines. 



A curious characteristic of this little shell is a sort of 

 flattened keel extending from the coiled apex to the 

 fissure. Mr. Adams describes this as being formed by 

 the convergence of several apical rays. 



Species 5. (Mus. Brit.) 

 RiMDLA Mazatlanica. Rim. testa minutd, pallidc fulvd, 



deprcssd, oblongd, costis crassis, subimbricatis, t-nb- 



distantibus radiatd. 

 The Mazatlan Kimdla. Shell minute, pale fulvous, 



depressed, oblong, rayed with thick, subimbri- 



cated, rather distant ribs. 

 Caiu'ENTEr (P. P.) Shells of Mazatlan. 

 Ilab. Mazatlan. 



