

NORTH AMERICAN CONCHOLOGY. 



469 



[Carpenter, Mazatlan Shells.] 

 Tage. 



334 Cerithium ? famelicum C. 

 B. Adams. 

 C. uncinatum Sowb. 



334 var. mediolaeve. 



C. uinbonatum Sowb. 



335 ? uncinatum Gmel. 



Murex uncinatus Gmel. 

 No. 198 Schr. 



Strombus muricatus &c. Sc. 

 C. famelicum (pars.) C.B.A. 

 (sp. ined. a.) 



336 

 336 

 337 

 337 



338 



339 



340 

 341 

 341 

 342 



342 



alboliratum Carp. 



(sp. ined. 6.) 



stercus-muscarum Val. 



C. irroratum Gould. 

 occellatum Mke. 

 interruptum Mke. 



? C. (sp.ined.)C.B.A. 



Vertagus gemmatus Hinds. 



Cerithium gemmatum Hds. 



V. gemmatus H. & A. Ad. 

 (sp. ined.) 



Triforis alternatus C. B. Ad. 

 inconspicuus C. B. Ad. 

 ? infrequens C. B. Ad. 

 Cerithidea Montagnei D'O. 

 Cerithium Montagnei D'Or. 

 Reeveanum C. B. A. 

 344 varicosa Soivb. (var.) 



Mazatlanica. 

 C. varicosum Sowb. ? 

 validum C. B. Ad. 

 34G Littorina conspersa Phil. 

 L. puncticulata Phil. 

 Melaraphe puncticulata H. 

 and A. Adams. 

 L. modest a Mke. 



348 aspera Phil. 



Melaraphe aspera II.&A. A. 

 Oct. 1856. 



349 Philippii Carp. 



350 (sp. ined.) 



351 Littorina fasciata Grog. 



Melaraphe fasciata Gr. 



Page. 



352 Modulus catenulatus Phil. 



Trochus catenulatus Kiist. 



M. trochiformis Ey. & Soul. 



Carchedonicus Carp. 



353 (sp. ined.) 



353 disculus Phil. 



Trochus disculus Phil. 

 M. duplicatus (var.) A. Ad. 

 dorsuosus Gould. 



354 Fossarus tuber osus Carp. 



f Trichotropis (&p. 1.) 



[Carp. 



354 angulatus Carp. 



355 Isapis maculosa Carp. 



356 (?sp. ined.) 



356 Rissoina stricta Mice. 



Rissoa stricta Mke. 



357 (sp. ined.) 



357 Woodwardii Carp. 



358 lirata Carp. 



359 Alvania excurvata Carp. 



359 effusa Carp. 



360 tumida Carp. 

 360 (sp. ined.) 



360 Cingula (sp. ined.) 



361 Hydrobia ulvae Penn. 



Turbo ulvas Penn. 

 Paludinella stagnal isMidA. 

 ? Helix stagnalis Linn. 



361 (sp. ined.) 



362 Jefifreyssia bifasciata Carp, 



362 ? Alderi Carp. 



363 tumens Carp. 



363 ? (sp. ined.) 



364 Truncatella (sp. ined.) 



364 Planaxis nigritella Forbes. 



PL acutus Mke. 

 otisoletus Mke. 



366 Alaba supralirata Carp. 



367 violacea Carp. 



367 terebralis Carp. 



368 alabastrites Carp. 

 368 scalata Carp. 



