34 



PALUDINA MAGNIFICA, Conrad. 



PLATE 11. 



P. testa conica, crassa, olivacea, longitudinaliter subru- 

 gosa ; lineis duobus transversis tuberculatis ; apice truncate - 

 erosa ; anfractibus quaternis, suturis valde impressis ; aper- 

 tura obliqua, semicircular!, lutescente, intus transversim 

 fasciata. 



SYNONYMS AND REFERENCES. 



P. MAGNTFICA, Conrad. New Freshwater Shells, p. 48, pi. 8, 



fig. 4. (May, 1834, fide Conrad.) 

 P. BIMONILIFERA, Lea. Tr. Am. Phil. Soc., vol. 5, p. 58, pi. 



xix, fig. 71. (Sept., 1834, fide Conrad, UnionidaB, p. 25.) 

 P. ANGULATA, Lea. Proceed. Am. Phil. Soc., vol. 2, p. 83 ; 



1841. 



DESCRIPTION. 



SHELL ovate, conical, ventricose, apex trun- 

 cate-eroded; whirls four, rough, with a sub- 

 central spiral row of regular tubercles, below 

 which upon the body whirl there is a similar 

 but less prominent row, which is scarcely 

 covered by the advancing growth of the pos- 



