G^EOTIS. 229 



pi. 8, f. 9, 1885), from the summit of mount Tchabang, Perak, is 

 doubtless a Girasia allied to G. (Africarwri] ater Godwin-Austen. 



G. NIGROLINEATA Shuttleworth. PL 62, figs. 41, 42, 43, 44. 



Shell very much depressed, very thin, hyaline-glassy, somewhat 

 opalescent, shining; striated witli flexuous growth lines, obsoletely 

 decussated with spirals. Spire minute, flat, scarcely papillar ; whorls 

 2^, very rapidly widening, the last large, depressed ; suture margined. 

 Aperture very oblique ; peristorne with the right margin sinuously 

 produced, the basal margin with a broad membranous margin. 

 Alt. about 3-J, greatest diam. 12, lesser 9 mill. 



Animal pale greenish-buff, pellucid, ornamented with very fine 

 black lines. Liver a vivid and deep rust color. 



Sierra de Luquillo, Porto Rico, on banana leaves, abundant 

 (BUiuner); Humacao (Bland). 



G. nigrolineala SHUTT., Mittheil. naturforsch. Gesell. Bern, 1854, 

 p. 3o ; Diagnosen neuer Moll., p. 127. PFR., Monogr. v, p. 11 

 CROSSE, Journal de Conchyl. 1892, p. 21. 



This species is very much depressed and very fragile, with the 

 spinil cords'almost obsolete. 



G. FLAVOLINEATA Shuttleworth. 



Shell depressed, very thin, hyaline-glassy, shining, somewhat opal- 

 escent, with flexuous growth-lines and spirals obsoletely decussating 

 them; spire very minute, flat ; whorls 2|, very rapidly increasing, 

 the last large, somewhat inflated and obtusely subangulate, depressed 

 in front ; suture margined, obsoletely crenulate-crispate. Aperture 

 very oblique ; peristome with the right margin flexuous, basal and 

 columellar margins with a very broad membranous margin. Alt. 

 6, greatest diam. 19, lesser diam. 14 mill. 



Animal large, ornamented with very fine yellow lines. 



Sierra de Luquillo and at Rio' Blanco, Porto Rico, very rare on 

 trunks and leaves of the Banana (Blauner) ; between Arecibo and 

 Utuado (Gundlach & Krug). 



G.flavolineata SHUTT., 1. c. p. 35 ; Diagn. p. 127. PFR., Monogr. 

 v, p. 11. v. MARTENS, Jahrb. D. mal. Ges. iv, 1877, p. 353 

 CROSSE, Journ. de Conchyl., 1892, p. 22. 



I have not seen this species, which differs from G. nigrolineata in 

 its somewhat greater convexity, larger size and subangulate last 

 whorl. 



