SPIRAXIS. 45 



gives place to the neanic stage, with adult sculpture of rib- 

 lets' separated by spaces of about double their width. 



In the general shape and the columella Glandinella is like 

 the Jamaican group Sigmataxis, but it differs in the system 

 of sculpture. The long aperture and colored streaks are 

 features unlike Volutaxis. 



47. S. POEYANUS (Pfeiffer). PL 3, figs. 37, 38. 



Shell imperforate, subulate, thin, subarcuately plicate, but 

 little shining, diaphanous, pale corneous, irregularly marked 

 with somewhat varix-like reddish streaks. Spire long, slen- 

 der, the apex rather acute, suture impressed. Whorls 8, 

 slightly convex, the last about one-third the total length, 

 slightly tapering basally. Columella callous, somewhat 

 twisted, obliquely receding. Aperture oblique, oblong-oval; 

 peristome simple, the margins joined by a thin callus, right 

 margin reddish bordered, arche'd forward above the middle, 

 somewhat bent in. Length 12, diam. 3, aperture 4 x 1.75 

 mm. (Pfr.). 



Isle of Pines (Gundlach). 



Bulimus poeyanus PFR., Malak. Bl. i, 1854, p. 157; ii, p. 

 156 (Opeas) ; Monographia iv, 458; vi, 97. Spiraxis (Glan- 

 dinella) poeyanus PFR., Nomencl. Hel. Viv. p. *328, no. 970 

 (1878). Glandinella poeyana CROSSE, Journ. de Conch. 1890, 

 p. 248. Bulimus Bayanus (error for poeyanus) PFR., 

 Malak. Bl. i, 1854, pi. 3, f. l-3.Achatina (Glandina ?) 

 pazensis PEREZ ARCAS, Journ. de Conchyl. vi, 1857, p. 282, 

 pi. 10, f. 8, 9. Glandina pacensis Perez, MARTENS in Albers, 

 Die Hel., p. 30. 



The glossy surface is sculptured with sinuous riblets about 

 half as wide as their intervals. The brown streaks lie par- 

 allel to the riblets, and usually there are about 4 or 5 on the 

 last whorl, 2 to 4 on earlier whorls. The columella is nearly 

 straight, but -when viewed obliquely a slow spiral twist may 

 be noticed. There is no trace of basal truncation. The 

 species has no close relatives. The specimen figured meas- 

 ures, length 11.5, diam. 3, length of aperture 3.8 mm., with 

 8% whorls. 



