1848.] 



95 



Catalogue nf Ihe Tertiary Testacea of the United States. 

 By Henry C. Lea. 



The following list is intended as a mere mechanical assi-tance to the student of 

 onr Tertiary Testacea. The descriptions of these species are scattered through 

 the Transactions of learned Societies, Scientific Jonrnals, Pamphlets, and other 

 publications difficult of access, presenting a serious obstacle to any one endea- 

 vouring to identify specimens. Labouring under this difficulty myself, I pre- 

 pared this catalogue, and from my experience of its convenience, I presume that 

 it may be found of assistance to others. I have endeavoured to introduce the 

 recent shells which have been observed in a fossil state, as far as I have seen 

 them noted, but as no regular record has been kept of the.Ti, I fear that in that 

 particular, especially, this list may be found imperfect. I have not attempted to 

 determine the conflicting synonymes, either generic or specific, but have merely 

 given the names with a reference to the publications in which they are alluded 

 to or described. 



REFERENCES. 



Jour. Acad. 

 Pro. Acad.- 

 Sil. Jour.— 

 " " N. 

 Trans. Phi 

 Trans. Geo 

 Best. Jour. 

 Nat. Inst.— 

 (Jont. Geol. 

 Tert. Foss. 

 Med. Tert.- 



— Journal of the Academy of Natural Sciences of Philadelpliia. 

 -Proceedings " " " " " 



Silliman's American Journal of Science and Arts. 



S. " " " " " New Series, (commenced in 1846. 5 



. — Transactions of the American Pliilosophical Society. 

 I. — Transactions of the Geolog:ical Society of Pennsylvania. 

 — Boston Journal of Natural History. 

 Bulletin of the National Institution. 

 — Contributions to Gsologv, hy Isaac Lea. 



—Fossil Shells of the Tertiary Formations of North America, by T. A. Conrad. 

 -Fossil Shells from the Medial Tertiary of the United States, by T. A. Conrad. 



CATALOGUE. 



ACTEON. 



Andersoni, Con., Pro. Acad. iii. 

 angulatus, H. C . Lea, Trans. Phil . ix. 

 costellatus, Con., Tert. Foss. 

 elevatus, Lea, Cent. Geol. 

 glans., H. C. Lea, Trans. Phil. ix. 

 globosus, H. C. Lea, " '• 

 granulatus, H. C. Lea, " 



idoneus, Con., Tert. Foss. 

 laevis, H. C. Lea, Sil. Journ. xl. 

 lineatus. Lea, Cont. Geol. 

 magnoplicatus, H. C. Lea, Sil. 



Journal, xl. 

 melanellus. Lea, Cont. Geol. 

 melanoides. Con., Jour. Acad. vi. 

 milium, H. C. Lea, Trans. Phil. ix. 

 nitens, H. C. Lea, " " " 

 novellus. Con., Jour. Acad. vii. 

 ovoides. Con., " " vi 

 ponailius, Con., Tert. Foss. 

 punctatus, Lea, Cont. Geol. 



A. pygmaeus. Lea, Cont. Geol. 



sculptus, H. C. Lea, Trans. Phil. ix. 



simplex, H. C. Lea, " " 



striatus. Lea, Cont. Geol. 



turbinatus, H. C. Lea, Trans. 

 Phil. ix. 



Aligena. 

 A. lasvis, H, C. Lea, Trans. Phil. ix. 



striata, H. C. Lea, " '< 



Amphidesma. 

 A. ajquale. Say, Sil. Jour. xli. 



ffiquatum. Con.. Pro Acad. i. 



bellastriatum. Con., Nat. Inst. No. 2. 



carinatum, Con., Jour. Acad. vi. 



constrictum, Con., Sil. Jour. xli. 



inaequale, Say, Jour. Acad. vii. 



linosum, Con., Tert. Foss. 



Mississippiense,Con., Pro. Acad. iii. 



nuculoide, Con., Sil. Jour. xli. 



protextum. Con., " 



subobliquum, '< " 





