EUGLANDINA. 183 



is somewhat attenuate or concave near the apex. The em- 

 bryonic shell consists of 3% smooth, glossy whorls, the second 

 more or less shouldered, malleate, and stria te near the suture, 

 the last embryonic whorl usually with a plicatulate sutural 

 border. The last whorl has very fine, close striae, generally 

 forked a short distance below the suture, 4 or 5 in a milli- 

 meter at the periphery. These are cut by far finer engraved 

 spiral lines. The sutural border is formed of oblong beads, 

 in which the striae run singly or in pairs. There are usually 

 some white varix-streaks, often shaded with darker brown in 

 front, and varying from one to three on each of the three 

 later whorls. The outer lip is white-edged. The columella is 

 very concave in adult shells, but in the young it is straight. 

 Length 77, diam. 33, aperture 39 mm. ; whorls 7%. 



Venezuela: Cumbre de San Hilario, and Chino, near San 

 Felipe (Appun) ; Cumbre de Valencia (Dr. Kretz) ; San Es- 

 teban, near Puerto Cabello, Caracas (Lansberg) ; mountains 

 between Pto. Cabello and Valencia (C. F. Starke). 



Glandina plicatula Pfr., MARTENS, Die Binnen-molL Venez- 

 uelas, Festschr. Ges. nat. Freunde Berlin, 1873, p. 164. G. 

 plicatula, form A, STREBEL, Beitrag, ii, p. 19, pi. 6, f . 35, a-c ; 

 pi. 1, f . 33 (apex) . 0. plicatula var. cinnamomeofusca TRYON, 

 Manual, i, p. 37. 



The Venezuelan race, described above, becomes larger than 

 plicatula, 70 mm. long or more, with a more produced spire, 

 slightly concave near the summit; the columella is more con- 

 cave, and the surface very glossy. It sometimes shows a few 

 indistinct pale flecks, as noticed by Pfeiffer and repeated by 

 Tryon. The whitish varices are indistinct and rare in some 

 examples. 



13. E. ISABELLA Pilsbry, n. n. PI. 21, figs. 5, 6, 7, 8, 9. 



The embryonic shell consists of about 3% whorls, and is 

 elevated conic dome-shaped with broadly and roundly trun- 

 cate top, reminding one of G. cognata. Its whorls are de- 

 ereasingly convex, the first two increasing comparatively 

 faster than the following ; the first projects, and especially at 

 the end, is somewhat elevated as in G. petiti, etc. ; smooth and 



