580 PKOCEEDINGS OF THE ACADEMY OF 



S. (Area) rustica, Tuomey and Holmes, Plioc. Foss. S. C. 39, 15, 1. 



S. (Area) stillicidium, C. Foss. Shells of Tert. Form. 14, 1, 3. 



S. (Area) scalaris, C. Miocene Foss. 59, 31, 1. Proceed. A. N. S. i. 324. Tuo- 

 mey and Holmes, Plioc. Foss. S. C. 43, 16, 1, 2. Emmons, Geol. N. C. 

 284. 



S. (Area) subsinuata, C. Miocene Foss. 62, 32, 6. 



S. (Area) subrostrata, C. Miocene Foss. 58, 30, 7. 



S. (Area) transversa? Say, C. Foss. Shells of Tert, Form. 14, 1, 2. Tuomey 

 and Holmes, Plioc. Foss. 42, 15, 6, 7. Emmons, Geol. N. C. 285. 



S. (Area) triquetra, C. Miocene Foss. 59, 31, 2. 



NCETIA, Gray. 



N. (Area) Carolinensis, C. Proceed. A. N. S. 1862, 290. 



N. (Area) limula, C. Foss. Shells of Tert. Form. 15, 1, 1. Miocene Foss. 60, 

 31, 3. 



ARGINA, Gray. 



A. (Area) pexata, Say, Journ. A. N. S. ii. 268. Tuomey and Holmes, Plioc. 

 Foss. S. C. 46, 16, 7, 8. 



ANOMOLOGARD1A, Klein. 



A. (Area) incile, Say, Journ. A. N. S. iv. 139, 10, 8. C. Fossil Shells of Tert. 



Form. 16, 21. Miocene Foss. 56, 29, 5. Tuomey and Holmes, Plioc. Foss. 



S. C. 35, 14, 6, 7. Emmons, Geol. N. C. 284. 

 A. trigintinaria, C. Proceed. A. N. S. 1862, 289. 



A. (Area) protracta, Rogers, Trans. Amer. Philos. Soc. v. 332 ; and vi. 337, 26, 5. 



C. Miocene Foss. 58, 30, 5. 



STRIARCA, Conrad. 1862. 



S. (Area) centenaria, Say, Journ. A. N. S. iv. 138, 10, 2. C. Foss. Shells of 

 Tert. Form. 16, 1, 4. Miocene Foss. 55, 29, 4. Tuomey and Holmes, 

 Plioc. Foss. S. C. 37, 15, 11, 12. Emmons, Geol. N. C. 284, 205. 



BARBATIA, Gray. 



B. (Area) ca;lata, C. Miocene Foss. 61,32, 2. Tuomey and Holmes, Plioc. Foss. 



S. C. 36, 14, 8. 

 B. (Area) hians, Tuomey and Holmes, Plioc. Foss. S. C. 34, 14, 4, 5. 

 B. (Byssoarca) Marylandicu, C. Miocene Foss. 54, 29, 1. 



Subgenus Granoarca, Conrad. 1862. 

 B. (Area) propatula, C. Miocene Foss. 61, 32, 1. 



AXINJEIN&. 

 AXIN^EA, Poli. 



A. (Pectunculus) arata, C. Sillim. Journ. xli. 346. Miocene Foss. 62,3,2. Tuo- 

 mey and Holmes, Plioc. Foss. S. C. 50, 17, 6. Emmons, Geol. N. C. 287, 

 208. 



A. (Pect.) Carolinensis, C. Sillim. Journ. xli. 346. Miocene Foss. 63, 35, 2. 



A. (Pect.) lajvis, Tuomey and Holmes, Plioc. Foss. S. C. 50, 17, 5. 



A. (Pect.) lentiformis, C. Miocene Foss. 64, 36, 2. Tuomey and Homes, Plioc. 

 Foss. S. C. 48, 17, 2. Emmons, Geol. N. C. 286. 



A. (Pect.) passa, C. Miocene Foss. 64, 35, 3. Tuomey and Holmes, Plioc. Foss. 

 S. C. 48, 17, 3. 



A. (Pect.) parilis, C. Proceed. A. N. S. i. 306. Miocene Foss. 64, 36, 2. 



A. (Pect.) quinquerugrata, C. Sillim. Journ. xli. 346. Miocene Foss. 63, 34, 3. 

 Tuomey and Holmes, Plioc. Foss. S. C. 49, 17, 4. 



A. (Pect.) tricenaria, C. Miocene Foss. 63, 35, 1. 



A. (Pect.) transversa, Tuomey and Holmes, Plioc. Foss. 51, 17, 6c. 



[Dec. 



