EASTERN PROVINCE INTERIOR REGION SPECIES. 329 



compressed, emarginate in the middle, and often bicuspid ; another at 

 the termination of the axis, marking internally the situation of the um- 

 bilicus, conical, and often composed of two or more tubercles ; a third 

 in the base of the aperture, a fourth upon the peristome, and a fifth, 

 often massive and prominent, deep in the fauces behind the columellar 

 tooth ; umbilicus minute. Length, 21""™ ; diameter, 1""". 



Pupa rupicola, Sw, J ourn. Acad. Nat. Sci. Phila., ii, 163 (1821); Binney's ed., 22 

 {Carijchium f)— Gould, Bost. Journ, Nat. Hist., iv, 355, pi. xvi, fig. 13 (1843).— 

 Pfeiffer, Mou. Hel. Viv., ii, 3.5ti; iii,557, nee SymboL-p, ii,55; in Chemnitz, 

 ed. 2, pi. xvi, figs. 17-19.— De Kay, N. Y. Moll., 52 (1843).— Binney, Terr. 

 Moll., ii, 341, pi. Ixx, fig.— W. G. Binney, Terr. Moll., iv, 145; v, 208; L. & 

 Fr.-W. Sb., i, 243 (1866). 



Pupaprocera, Gould, Bost. Journ. Nat. Hist., iii, 401, pi. iii, fig. 12 (1840) — KtJSTER, 

 in Chemnitz, 58, pi. vii, figs. 20, 21.— Pfeiffer, Mon. Hel. Viv., ii, 360. 



Pupa carinaia, Gould (olim), 1842, Bost. Journ. Nat. Hist., iv, 1, cover, p. 3; see also 

 iv, 359 (1843).— Pfeiffer, Mon. Hel. Viv., ii, 359; iii, .%7. 



Pupa gihhosa, Kijster. in Chemnitz, ed. 2, 123, pi. xvi, figs. 13-16. 



Pupaminuta (Say), Pfeiffer, Mon. Hel. Viv., ii, 356; iii, 555; Symb., ii, 54. 



Vertigo rupicola, Binney, 1. c. 



Leucochila rupicola, Tryon, Am. Journ. Conch., iii, 307 (1868). 



From Key West to Arkausas aud New England ; Louisiana; Texas. 

 It may therefore be said to inhabit all of the Eastern Province. 



Mr. Saj noticed the resemblance between this species and P. cortica- 

 ria; future observations will, I believe, prove them to be identical. 

 That procera and rupicola are synonymous is fully shown by the com- 

 parison of numerous specimens. The length of the spiral cylinder va- 

 ries considerably. The characters of the aperture are constant; but 

 the teeth, except those on the transverse margin and at the extremity 

 of the axis, are frequently wanting ; its outline is well rounded and 

 the peristome broadly expanded. There is often an abrujjt curve of 

 the outer peristome between the tooth of that side and its junction 

 with the body-whorl. The upper boundary of the aperture is dis- 

 tinctly marked by the body-whorl, which makes a horizontal truncat- 

 ure of the superior part of the oval. The teeth, except the two con- 

 stant ones, are deeply seated in the throat, and cannot always be seen 

 without considerable attention. 



Jaw low, wide, slightly arcuate; ends but little attenuated, blunt; 

 no median projection to cutting edge. 



Lingual membrane as usual in the genus (see Terr. Moll., V, Plate 

 IV, Fig. S). The cusps on the laterals, however, are very much 

 stouter. There are 5 perfect laterals ; teeth 11-1-11. 



Genitalia not observed. 



