MAZATIATT TTNIYAIVES 255 



Tablet 1179 contains 2 rubbed operciila, wliicli may have 

 been wasbed up from young Callopoma saxosuin. 



Tablet 1180 contains a sbelly operculum (apes broken) wbich 

 must bave bad about 10 wbirls in a diameter of "45 ; outside 

 nearly smootb, convex ; inside very concave, witb tbe margins 

 of tbe wbirls projecting, and beavitifidly crenated. 



Sab. — Mazatlan ; from sbell wasbings ; L'pool Col. 



Family NEEITID^. 

 Genus NEEITA, Unn. 

 ■ Odontostoma, Klein, non D'Orh., nee PhiL 



326. Nehita scabeicosta, Lam. 



An. s. Vert. vol. viii. p. 608, no. 14. — Reel, in Petit Joum. 



Conch, vol. i. pp. 287, 410, pi. 11, f. 2.—C. B. Ad. Pan. Shells, 



p. 204, no. 304. — (Non Deless. in jRec.) 

 =N. jornata, Soio. Gen. -pi. 4, f. 4. — Wood, Tad. Test. Suppl. 



pi. 8, f. 4.— i?ye. Conch. S>/st. pi. 202, f. i.—Phil. AhhiU. 



p. 1, pi. 1, f. 2, ^.—Mhe. in Zeit.f. Mai. 1850, p. 167, no. 21.— 



Rve. Conch. Tc. pi. 1, f. 3, a, b. 

 + N. Desbavesii, Bed. in Pev. Zool. 1841, p. 1S4. — Rve. Conch. 



Tc. pi. 2, f. 7, a, b. 

 + N. multijugis, Ifke. in Zeit.f. Mai. 1847, p. 179, no. 7, 



(teste Mke. ipso, loc. cit. 1850,)— i?re. Elem. Conch, pi. 16, 



f. 86. 

 =Pila multijutris + P. ornata + P. scabricosta, S. Sf A. Ad. 



Gen. i. 379, 380. 



Tbe N. ornata of Soio. is referred to tbe N. scabricosta of 

 Lam. on tbe undoubting autbority of Prof. Adams. Tbe 

 original description (from a supposed unique specimen,) migbt 

 fit many species ; and Dcsh. (wbo was debarred by Kien. from 

 inspecting tbe Lamarckian tyi^es, even wben editing tbe An. s. 

 Vert.) does not venture on synonyms. Tbe N. multijugis of 

 Menke, described from adolescent specimens, was abandoned 

 by bimself, and yet appears in modern works as distinct. The 

 form N. Dcsbaysii, (to wbicb most of tbe Mazatlan specimens 

 belong) is separated iu consequence of baving more niimerous 



