Catalogue; Recently Described Mollusca 153 



rLEUROCERA ROANENSE (Lea). 



Trypouostouia roancnsc Lea, Obs., XL 1866, p. 98, pi. 23, fig. 52. 



PlEurocera subrobustum (Lea). 



Trypaiiostoina snbrohnstiim Lea, Obs., XL 1866, p. 97, pi. 23, fig. 50. 



Pleurocera terEbraee (Lea). 



Trypaiiostoma terchrale Lea, Pr. A. N. S. P., 1868, p. 153 ; Jour. A. N. S. P., 



VL 339, pl- 54, %• 22; Obs., XH, 1868, p. 99, pi. 54, fig. 22. 

 Type locality : Jackson Co., Ala. 



Peei'ROCEra undulatum (Say). 



Includes M. excuraia Con. and rorata Rve., T. moniliferum Lea and 

 spilliiiaiii Lea, and lo nobilis Lea, nodosa Lea, robiista Lea and variabilis 

 Lea according to Pilsbry (iii, p. 497). 



Pleurocera univittatuai (Lea). 



Trypaiiostoma iiiiiz'ittatiiin Lea, Obs., XL 1866, p. loi, pi. 23, fig. 58. 



Pleurocera yenustum (Lea). 



Trypanostoina venustmn Lea, Pr. A. N. S. P., 1864, p. 12; Jour. A. X". vS. P., 

 \'L 1866, p. 149, pi. 23, fig. 66; Obs., XI, 1866, p. 107, pi. 23, fig. 66. 

 Type locality : Big Prairie Creek, Ala. 



Pleurocera wheatleyi (Lea). 



Trypaiiostoma zdieatlexi Lea, Pr. A. N. S. P., 1868, p. 153; Jour. A. N. 



S. P., \l, i868,"p. 338, pi. 54, fig. 21 ; Obs., XH, 1868, p. 99, pi. 54, 



fig. 21. 

 Type locality : Coosa RiYcr, Ala. 



Section STREPHOBASIS Lea, 1861. 



Pleurocera curtum (Haldeman). 



Dr. James Lewis (68, p. 224) suggested a long synonymy for this species, 

 "not as being conclusive, but as being in many particulars deserving of in- 

 quiry". Tryon (133, p. 88) in a review of Lewis' paper, states that upon the 

 invitation of Dr. Lea, he had re-examined the types of the species included 

 in the proposed synonymy, which resulted in a renewed assurance that his 

 original determinations respecting them were correct. Later, (Tryon, 134, 

 p. 424) Lewis states that on reviewing the matter, he had ascertained ''that 

 one of Say's species (hitherto treated as superfluous) was really entitled to 

 take precedence of curtum" . 



