CHONDRIN.E OF THE PYRENEAN CENTER. 33 



Pupa badia var. gigantea Moquin-Tandcm MS., ROSSMAES- 

 LER, Iconogr., iii, 1859, p. 106, pi. 85, f. 937 (as var. ? of mega- 

 cheilos). 



12. CHONDRINA GONIOSTOMA (Kiister). PI. 2, figs. 13, 14. 



Shell somewhat cylindric-conic, rather thin, translucent, 

 narrowly but deeply umbilicate, very finely rib-striate, glossy, 

 especially on the penult whorl, reddish corneous-brown, the 

 summit yellowish ; the spire is rather drawn out, the 7-8 whorls 

 flatly convex, appearing separated by a deep suture, slowly 

 increasing ; neck flat, yellowish behind the lip, with three whit- 

 ish lines; base compressed, sharpened keel-like. Aperture 

 rather broad, rounded-triangular, with a sharp angle below at 

 the passage of the lip into the columella ; at the base of the 

 latter there is sometimes a tooth-like projection. Four plica? 

 in the palate, the first small, the second very large, emerging 

 to the peristome and forming a blunt tubercle there; colu- 

 mellar lip ascending in a curve, much shorter than the peri- 

 stome. Length 4, breadth li/o lines (Kn-ester). 



France: in the eastern Pyrenees (Kiister). 



Pupa goniostoma KUESTER, Conchyl. Cab., p. 53, pi. 7, f. 1-3. 

 -PFR., Monogr., ii, 345 ; iii, 547 ; iv, 673 ; vi, 314. BOURGUIG- 

 NAT, Moll, de San-Julia de Loria, 1863, p. 22; Malac. de 1'Al- 

 gerie, ii, 85, pi. 5, f. 35-38. 



A species more closely related to P. megacheilos than the 

 preceding [P. moquiniana], but readily distinguished by the 

 peculiar shape of the aperture as well as by the lack of a 

 white lip. The finer striation, stronger gloss, smaller number 

 of folds and more purely conic form separate goniostoma from 

 moquiniana, in which there is also a tendency towards the 

 formation of an apertural angle. From cereana the present 

 species is distinguished by the greater size and especially by 

 the union of the second palatal fold with the peristome ; from 

 avenalay the greater number of palatal folds (Ku-ester). 



This appears to be a variety of tenuimarginata Des Moulins. 



Form aucta West. With 6 palatal folds, the first very short, 

 sutural, 2d short, 3d to 5th marginal, 6th below, near the 

 columella (Fauna Pal. Reg. Binnenconch., iii, 1887, p. 96). 



