GRANOPUPA. 353 



Most nearly related to rupestris Phil., which however has a 

 far more slender, narrower and strongly twisted spire, with 

 deeper, gutter-like suture and very convex whorls ( West. ) . 



15. GRANOPUPA OCCULTA ('Parr.' Rm.). PL 49, figs. 5, 7, 8, 9. 

 Shell small, scarcely rimate, fusiform-turrited, light cor- 

 neous-brown, thin, translucent, lusterless, rib-striate. Whorls 

 5-6, convex, the last noticeably larger than the penult, scarcely 

 as large as the others together. Suture deep. Aperture ovate, 

 somewhat higher than wide ; throat with 3 fold-like teeth, one 

 each on columella (the largest), on the palate, and on the 

 parietal wall. Lip-margins approaching. Length 2*4, width 



1 line (Rossm.). 



Sicily: campagna di Palermo, rare (Benoit). 



Pupa occulta Parr, in litt., ROSSMAESSLER, Iconogr., ii, pt. 

 10, 1839, p. 25, pi. 49, f. 638. PHILIPPI, Enum. Moll. Sicil., ii, 

 p. 114. KUESTER, Conch. Cab., p. 18, pi. 2, f. 25, 26. PPR., 

 Monogr., ii, p. 349. BENOIT, Nuovo Catal. Conch, terr. e fluv. 

 Sicilia, 1881, p. 94; 111. Sist., crit., icon., etc., pi. 5, f. 35 (copy 

 from Rossm.). ?? Pupa (Torquilla) occulta Rossm., WESTER- 

 LUND, Nachrbl. d. m. Ges., 1892, p. 193 ; Synopsis, 1897, p. 103. 



Rossmaessler's figures are copied in pi. 49, figs. 7, 8. The 

 shell is much like rupestris in shape and sculpture, but differs 

 by having teeth parietal, columellar and lower palatal. 



In the specimen figured on pi. 49, fig. 9, the palatal plica is 

 obsolete, but there is a slight thickening in its place; length 

 4.7, diam. over all 2.4 mm. ; 6 whorls. 



PL 49, fig. 5, represents a smaller example, length 3.5, diam. 



2 mm., 5% whorls, in which only a columellar lamella is de- 

 veloped, though the shell appears to be adult. It is transi- 

 tional to rupestris. 



Westerlund's new diagnosis (1892) appears to apply to 

 some other form, not to typical occulta. 



16. GRANOPUPA SCALARIS (Ben.). PL 48, figs. 1, 2, 5, 7, 8. 



A small and elegant shell, rimate, fusiform, rather fragile, 

 of a yellowish color; spire with the summit obtuse; whorls 6 

 in number, obliquely and equally ornamented with riblets, the 



