FAUNA OF OETHAULAX PUGNAX ZONE. 107 



the county bridge, Calhoun County, Florida; and of Sapote, Costa 

 Rica (Gabb). U. S. Nat. Mus. No.^ 165130. 



Genus AMPULLINA (Lamarck) Bo-wdieh. 



Ampullina (Lamarck) Bowdich, El em. Conch., vol. 1, p. 31, 1822. Type, 

 pi. 9, fig. 2 {Ampullaria depressa Lamarck, not Sowerby; not Ampul- 

 Una Blainville, 1S25).— Dall, IT. S. Geol. Survey, Prof, paper No. 59, 

 p. 89, 1909. 



The name of this genus appears in its French form (AmpuUine) 

 in the works of Defrance and other writers, as proposed by Lamarck, 

 some years before it appeared in Latin as above indicated. The type 

 as figured by Bowdich is one of the heavier species with a distinct 

 umbilicus, probably A. depressa Lamarck, and not the form in which 

 the umbilicus is closed over by a mass of callus, as imagined by 

 several respectable authors. 



The group contains both umbilicated and imperforate species and 

 has been considerably divided. Lupia Conrad is an elevated form 

 of the imperforate type and differs from Amauropsis Morch only in 

 having no channel at the suture. The Natica phasianeUoides of 

 Orbigny is a typical Lupia. The full synonymy is given in Profes- 

 sional paper No. 59, above cited, "\\niile not using the Latinized 

 form of the name Defrance, in the Dictionnaire des Sciences Nat- 

 urelles,^ states that Lamarck had arranged, first in Ampullaria and 

 afterwards in a genus which he called "Ampulline," the marine 

 fossils belonging to this group, Defrance gives a list of 14 species. 

 Bowdich, in his work published somewhat later, cites in connection 

 with Ampullina part of the remarks of Defrance. 



AMPULLINA STREPTOSTOMA Heilprin. 

 Plate 32, fig. 27. 



Watica streptnstonia Heilprin, Trans. Wagner Inst., vol. 1, p. 112, pi. 16, 



fig. .51, 18S7. 

 Ampullina strcptofttoma Dall, Trans. Wagner Inst., vol. 3, pt. 2, p. 374, 



1892. 



Oligocene of Tampa silex beds at Ballast Point and La Penotiere's 

 hammock, Florida, and the white limestone of Jacksonboro, Georgia; 

 Heilprin, Dall, and IVliitfield. U. S. Nat. Mus. No. 165131. 



This species is related to A. sigaretina Lamarck, of the Paris basin 

 Eocene, but has a wider basal callus and more open umbilicus. From 

 A. fischeri Dall, of the Chipola beds, it differs by not having the 

 umbilicus closed. The young, however, of these species are prac- 

 tically identical. 



1 Vol. 20, 1821, p. 44G. 



