276 HYSROMIA. 



Shell narrowly umbilicate, subdepressed, keeled or angular at 

 periphery, thin and brownish ; surface sculptured with short, scale- 

 like cuticular processes ; aperture oblique, oval ; outer and basal 

 lips well expanded, somewhat thickened within. Type H. ciliata 

 Yen., pi. 55, figs. 22, 23, 24. 



Animal having the mantle blotched with black as usual in the 

 genus. 



Jaw arched, transparent and yellowish, with numerous, fine, 

 close, regular but not well defined riblets, hardly crenulating the 

 margins (H. ciliata}. Genital system (pi. 70, fig. 30, H. ciliata') 

 with short, stout penis, its retractor terminal and with bifid inser- 

 tion ; epiphallus ending in a short, stumpy flagellum. Duct of 

 spermatheca moderately short, swollen at base. Dart sack and 

 Caucus glands wanting. 



Distribution, south-central Europe, Canary Islands. 



H. ciliata Ven., iii, 187. H. guevarriana Bgt. 



folliculata Risso. H. stussineri Bttg. 



hirsuta Jan. H. leprosa Shutt., iii, 223. 



v. biformis Beck. H. lanosa Mouss., iii, 223. 



Section Metafraticicola v. Ihering. 



Pseudocampylcea HESSE, Jahrb. D. M. Ges. 1884, p. 237, (q. v. for 

 anatomy) ; TRYON, Manual of Conch. (2), iv, p. 114 (part), and of 

 other authors. Not Pseudocampylcea Pfeiffer, Mai. Bl., xxiv, p. 8, 

 1877. Cressa WESTERLUND, Fauna Palaarct. Reg. Binnen-Conch., 

 Helix, p. 4, 101, 1889. Not Cressa Bock, 1871 (Amphipoda).- 

 Metafruticicola IHER., Zeitschr. f. Wissensch. Zool. liv, p. 452 (Oct. 

 4, 1892). 



Shell moderately solid, opaque, rather small, depressed-globose,^ 

 umbilicated, with convex spire of nearly 5 whorls, the first one 

 smooth or costulate, the remainder granulate, grano-costulate or 

 spirally decussated, often with hairs standing in oblique series. 

 Last whorl rounded at periphery, descending in front. Aperture 

 subcircular or oval ; peristome sharp-edged, slightly expanded 

 below, strengthened by a scrong submarginal internal rib. Type 

 H. pellita Fer. 



Mantle flecked with dark. Right eye retractor passing between 

 branches of genitalia. Jaw with many (15 to 20) fine vertical rib- 

 lets (pi. 70, fig. 31, H. pellita). 



