1919. 



NATURAL SCIENCES OF PHILADELPHIA. 



17 



MOLLUSCA FROM THE UPPER MIOCENE OF SOUTH CAROLINA WITH 

 DESCRIPTIONS OF NEW SPECIES 



BY JULIA A. GARDNER and T. H. ALDRICH 



The exact locality from which the mollusca listed in this paper 

 were collected is known as the Muldrow Place, Sumter County, 

 South Carolina, and is located five miles southeast of jNIayesville. 

 The material is a blue clay marl twelve feet thick, exposed on 

 some small streams. Normally it is overlaid by about twelve 

 feet of sand and loam. Earle Sloan listed it on p. 308 of his " Cata- 

 logue of the Mineral Localities of South Carolina," and named it 

 "Upper Pee Dee Phase" of the Miocene. It seems to be very 

 nearly of the same age as the Duplin beds farther north, and con- 

 tains a great number of the same species. The fauna is more 

 tropical in character than the Miocene of Maryland and Virginia. 



List of 



Malampus lineatus Say. 



Acteon cf. shilohensis Whitfield. 



Acteocina canaliculata (Say). 



Acteocina myrmecdon Dall. 



Volvula oxytata Bush. 



Terebra caroHnensis (Conrad). 



Terebra negleda Emmons. 



Terebra dislocata Say. 



Terebra indenta Conrad. 



Terebra concava Say. 



Conus marylandicus Green. 



Conus adversarius Conrad. 



DrilUa tricatenaria Conrad. 



Drillia myrmecdon Dall. 



Drillia elegans Emmons. 



Drillia tuberculata Emmons. 



Drillia aphanitoma subsp. oxia Dall. 



Drillia precursor n. sp. 



Drillia sumterensiis n. sp. 



Drillia limatula Lea. 



Drillia perpolita Dall. 



Drillia polygonalis Dall. 



Drillia pagodula Dall. 



Drillia simpsoni Dall. 



Mangilia eritima Bush. 



Mangilia aff. rubella Kurtz & Stimp- 



son. 

 Glyphostoma johnsoni Dall. 

 Cancellaria tabulata n. sp. 

 Cancellaria venusta Tuomey & Holmes. 



species 



Cancellaria (Trigonosioma) tenera Phil- 

 ippi. 



Oliva litterata Lamarck. 



Olivella mulica (Sayj. 



Marginella borealis Verrill. 



Marginella contracta Conrad. 



Marginella beila (Conrad). 



Marginella denticulata Conrad. 



Marginella aureocincta Stearns. 



Marginella aff. avena subsp. avenacea 

 Deshayes. 



Marginella gravida Dall. 



Marginella anliqua Redfield. 



Marginella oliviformis Tuomey & 

 Holmes. 



Marginella minuta Pfeiffer. 



Marginella (Volutella) dacria Dall. 



Aurinia mutabilis (Conrad). 



Mitra caroHnensis Conrad. 



Miira wandoensis (Holmes). 



Mitra dalli n. sp. 



Mitromorpha mi'.roiila n. sp. 



Fasciolaria rhomboidea Rogers. 



Busycon pyrum subsp. excavaium Con- 

 rad. 



Busycon concinum Conrad. 



Busycon maximum Conrad. 



Busycon perversum Linne. 



Ecphora quadricostata (Say). 



Fusinus I exilis (Conrad). 



