468 Systematic Paleontology 



embraces four known species, all of which characterize the Cretaceous 

 period. One occurs in South America, and two in India. The latter are 

 Strombus uncatus Forbes, and S. contortus Sowerby." — Conrad, 1860. 



Shell stout, fusiform in young stages, very heavy and irregularly ovate 

 or trigonal in the adult. Spire rather low, whorls feebly inflated, as a 

 rule, and increasing rather rapidly in size, the earlier volutions partially 

 concealed in the adult forms by the labial flange. External sculpture 

 dominantly axial, body whorl relatively large, aperture wide posteriorly, 

 narrowly contracted anteriorly, thickened marginally, smooth within, 

 produced either into a trigonal flange or into a subfalcate process. Colu- 

 mellar lip very heavily calloused, the wash covering a greater or less sur- 

 face of the body whorl and spire. Columella feebly excavated, non-plicate, 

 anterior canal short and narrow, sharply recurved into a dextral beak 

 abruptly truncated in front and rarely preserved in its entirety. 



The genus is represented by something more than a dozen species, all 

 of them from the Cretaceous. 



A. Axial sculpture developed upon final half turn Pugnellus densatus 



B. Axial sculpture not developed upon final half turn. . . .Pugnellus goldmani 



Pugnellus densatus Conrad 



Strombus densatus Conrad, 1858, Jour. Acad. Nat. Sci., Phila., 2d ser., vol. 



iii, p. 330, pi. xxxv, fig. 14. 

 Pugnellus densatus Conrad, 1860, Ibidem, 2d ser., vol. iv, p. 284. 

 Pugnellus densatus Meek, 1864, Check List Inv. Fossils, N. A., Cret. and 



Jur., p. 20. 

 Pugnellus densatus Hill, 1901, 21st Ann. Rept. U. S. Geol. Survey, pt. vii, 



pi. xlviii, fig. 2. 

 Pugnellus densatus Johnson, 1905, Proc. Acad. Nat. Sci., Phila., p. 23. 

 Pugnellus densatus Veatch, 1906, Prof. Paper U. S. Geol. Survey No. 46, pi. 



x, fig. 3. 

 Pugnellus densatus Weller, 1907, Geol. Survey of New Jersey, Pal., vol. iv, 



p. 720, pi. Ixxxiii, fig. 6. 



Description. — " Lip expanded, very thick ; costae disappearing on the 

 middle of the volution ; labrum suddenly thickened, with a groove behind 

 the raised margin ; a calcareous deposit sometimes coats the whole shell, 

 rising into an oblique, thick, prominent ridge, the upper margin of which 

 is on a line with the apex." — Conrad, 1858. 



Type Locality. — Owl Creek, Tippah County, Mississippi. 



