AMPULLARIA. 55 



Allipullai'ia depressa, Say — Shell ventricose, subglobular, obso- 

 letely banded witii obscure green ; whirls 



four, slightly wrinkled ; body whirl more ^^S- ^3* 



prominent above, somewhat flattened to- 

 wards the suture, of a pale olivaceous 

 color, which is almost concealed by nume- 

 rous unequal, longitudinal and transverse 

 greenish and brownish lines ; spire very 

 much depressed ; aperture suboval, within 

 somewhat glaucous, on the margin exhi- 

 biting the bands distinctly ; labrum sim- 

 ple, as much rounded above as below ; 

 umbilicus small, nearly closed. Greatest 

 width one inch and nine-twentieths, total 



length one inch and a half ; length of the Ampullaria depressa. 



aperture one and one-fifth of an inch nearly. 

 Inhabits East Florida. 



During an excursion to East Florida, in company with Messrs. Maclure, 

 Ord, and T. Peale, I obtained a single dead and imperfect specimen of this 

 interesting shell. It occurred in a small creek, tributary to St. John's 

 River, and on the plantation of Mr. Fatio. Captain Le Conte of the Topo- 

 graphical Engineers has since presented me with a perfect specimen, with 

 the information that he observed them in very great numbers on the shores 

 of Lake George, a dilatation of St. John's River ; that in some places the 

 dead shells were piled up confusedly to a considerable height, and that the 

 Numenius longirostra feeds upon the living animal. The spire is still less 

 elevated than that of the c/lobosa of Swainson. 



Ampullaria depressa. — As the name depressa of the Appendix to Long's 

 Exped. p. 264, is preoccupied by Lamarck for a fossil species, it may be 

 changed to paludosa. (Say.) 



Ampidlaria depressa, Say, Long's Ex. 264, pi. xiv, f. 2 ; Binney's ed. p. 



130, pi. Ixxiii, f. 2. — Haldeman, Mon. p. 5, pi. 1, ii. — De Kay, N. Y. 



Moll. 124. — Hasley, Conch. Misc. pi. iii, f. 9. — Philippi, in Chemn. 



ed. 2, p. 52, pi. xvi, f. 4. 

 Ampullaria paludosa, Say, New Harm. Diss. 260 ; Desc. 22 ; Binney's ed. 



p. 147. 

 Ampullaria hopetonensis, Lea, Tr. Am. Phil. S. V, 115, pi. xix, f. 84. — 



DeKay, N. Y. Moll. 124.— Reeve, Con. Icon. fig. 60.— Philippi, in 



Chemn. ed. 2, p. 36, pi. ix, f. 7. 



Mr. Say proposed the name imludosa because his first name, 

 depressa, was preoccupied by Lamarck, An. s. Yert. 1822. Since, 

 however, that Ampullaria depressa, Lam. has been removed to 

 the genus Natica, I adopt Mr. Say's first name. Figs. 91 — 92, 

 represent the animal and operculum of this species, copied from 

 Haldeman, the former being reduced in size. Fig. 93 is a fac- 



