Catalogue; Recently Described Moelusca 151 



PLEUROCERA Rafinesque, 1818. 



Pilsbry ( ro5, p. 114) from a consideration of the literature concludes 

 that the type of Pleurocera Raf. is verrucosa Raf. and that it consequently 

 takes the place of Angitrema Hald. and that for this group Ceriphasia Sw. 

 should be used. This has been controverted by Walker, No. 161, who argues 

 that the type of Pleurocera had never been properly designated and desig- 

 nates P. acuta Raf. as the type, thus retaining the name for the group with 

 which it has commonly been known. In a similar case, Dall (20, p. 1141) 

 had already taken the same position as advocated by Walker. 



Pleurocera acuta Rafinesque. 



Pleurocera acuta Rafinesque, Enumeration and Account, 183 1, p. 3 ; Walker, 

 Occ. Pap. Mus. ZooL, U. of M., No. 38, p. 8. 

 Is identical with and has precedence over P. suhulare Lea and is the type 

 of Pleurocera Raf. It includes according to Goodrich (49, p. 122) tractmn 

 Anth., negiectiini Anth., iutensuin Rve., pallidum Lea and labiatuni Lea. 



Pleurocera aeeine (LeaL 



Trypanostoma affine Lea, Obs., XI, 1866, p. loi, pi. 23, fig. 57. 



Pleurocera ai,tipetum (Anthony). 



Trypanostoma corneum Lea, Obs., XI, 1866, p. 104, pi. 23, fig. 63. 



Pleurocera ALVEARE (Conrad). 

 Includes P. plicatuni Tryon. 



Pleurocera aratum (Lea). 



Trypanostoma cinctuni Lea, Ohs., XI, 1866, p. 103, pi. 23, fig. 60. 



Pleurocera bicinctum Tryon. 



Pleurocera bicinctum Tryon, Am. J. of Con., II, 1866, p. 4, pi. II, fig. 2. 

 Type locality : Bridgeport, Ala. - 



Pleurocera carinatum (Lea). 



Trypanostoma carinatum Lea, Obs., XI, 1866, p. 104, pi. 23, fig. 62. 



This species as suggested by Tryon is probably the young of some other 

 species. If, however, it should prove to be a valid one, it will have to be 

 renamed as Plenrocera (Strephobasis) carinatum Lea has prioritv. 



Pleurocera castaneum (Lea). 



Trypanostoma castaneum Lea, Pr. A. N. S. P., 1868, p. 152; lour. A. X'. 



S. P., VI, 1868, p. 338, pi. 54, fig. 20; Obs., XII, 1868, p. 98, pi. 54, 



fig. 20. 

 Type locality : Coosa River, Ala. 



