240 GEOMITRA. 



G. nitidiuscula So\vb.,iv, 188. G. nitidiuscula. 



vulf/ata Lwe. v. saxipotens Woll. 



v. giramica Lwe.,iv, 188. v. canicalensis Lwe.,iv, 188. 



miaglyptica Rv. G. lurida Lwe., iv, 188. 

 v. deserticola Woll. nitidiuscula Woll., not Sow. 



v. pulchra Paiva. v. hartungi Alb.,iv, 189. 



Subgenus LEMNISCIA Lowe, 1854. 

 Lemniscia LAVE., P. Z. S., 1854, p. 170, type H. michaudii Dh. 



Shell barely perforate, nowhere granular, globose-conoid or glo- 

 bose-depressed, with numerous (6-1 to 8) slowly widening whorls, 

 those of the spire striated ; last whorl but little descending, the base 

 smooth. Aperture half-round, lip blunt, thickened within, ex- 

 panded toward the columella, its ends remote, parietal wall nude. 

 Type G. michaudii Dh., pi. 68, figs. 14, 15. 



G. micliaudii Dh., iv, 21. G. calva Lwe., iv, 41. 



bicolor Lwe. G. galeata Paiva, iv, 41. 



Subgenus HISPIDELLA Lowe, 1852. 



Hixpidella LWE., Ann. Mag. N. H. (2), ix, Feb., 1852, p. 115, 

 for armitageana, revelata, sericea; P. Z. S., 1854, p. 178, type, H 

 hixpida L. 



Shell thin, fragile, brown, not chalky ; perforate, convex-depressed ; 

 surface bearing flattened cuticular scale-like processes, simulating 

 the hairs of Trichia. Whorls less than 5, the last angular, slightly 

 deflexed in front. Aperture half-round, slightly lunate, the peri- 

 stome slightly expanded, reflexed at columella, ends remote. Type 

 G. armitageana Lwe. 



Has a superficial resemblance to the Fruticicoloid Continental 

 forms, but the sculpture is like that of Lowe's section Irus, and I 

 am disposed to consider the group as a member of the present genus. 

 Lowe was clearly in error in naming as the type of his group a spe- 

 cies which he had not mentioned in his original publication of the 

 name. H. horripila, a doubtful member of the group, is from the 

 Azores. 



G. armitageana Lwe., iii, 223. G. horripila M. & D., iii, 222. 



Subgenus SPIRORBULA Lowe, 1852. 



Spirorbula LWE., Ann. Mag. N. H., Feb., 1862, p. 114 (proposed 

 for H. latens and obtecta} ; P. Z. S., 1854, p. 175, type H. obtecta 



