366 ACHATINID.TE. 



regularly tapering to the obtuse, smooth apex, sculptured with 

 narrow, spaced, thread-like riblets which curve forwards above the 

 periphery and are much weaker below it. Whorls slightly more 

 than seven, moderately convex. The aperture is long, the outer 

 lip arched forward above, and the columella reflexed narrowly, 

 leaving a narrow umbilical fissure. Length 13-3, diam. 4'5, length 

 of aperture 5'5 ram. 



" This form seems to differ from P. acliatmaceum by its larger 

 aperture," (Piltbry.) 



Nevill also was of opinion that it differed from the latter (Hand 

 List, i, 1878, p. 173). 



Morch records a variety ft from Kamorta, Katchal, as smaller r 

 rather smooth, length 11, width 9, length of aperture 5 mm., and 

 a var. y, from jSTancouri, as rather solid, length 13, width 4J> 

 length of aperture 4 mm. 



332. Prosopeas roepstorffi, Morch (em.). 



llulimus (Prosopeas) roepstorji, Morch, Journ. Conchyl. 1876, p. 358. 

 Stenogyra (Prosopeas} roepstorffi, Nevill, Hand List,"i, 1878, p. 173. 

 Stenoqyra (Opeas] ropstorjl, Pfeiffer & Clessin, Nomencl. Helic. Viv. 



1881, p. 320. 

 Prosopeas roepstorfi, Pilsbry, Man. Conch, ser. 2, xviii, 1906, p. 27.. 



pi. 3, figs. 97-99. 



Original description: " Stenogyra elonc/atula, " Pfr.," Martens, 

 1. c. [Preuss. Exp. Ost-Asien, Zool., ii, 1867] p. 379, t. 22, f. 12, 

 affinis, sed differt : T. straminea, costulato-striata, suturis pro- 

 fundis ; apertura dilatata, fere ficiformi, faucibus albis, columella 

 torta, imperforata. 



"Long. 22 millim., diam. 6; long, apert. 7g." (Morch.} 



Holy. JN T icobar Islands (Stoliczka} ; Kamorta (Hoepstorff) ; Little 

 Coco Island ( Wood-Mason}. 



The species remained unillustrated until Prof. Pilsbry figured 

 a specimen. It contains " nearly 8 whorls, the first globose 

 and smooth, the rest moderately convex and sculptured with 

 forward! v arcuate, thread-like striae. The aperture is quite 

 oblique, lon and narrow, the thin outer lip arched forward, the 

 columellar lip narrowly reflexed above and imperfectly appressed. 

 The columella is concave, slightly folded at the upper insertion. 

 Length 16, diam, 4*7, length of aperture 5'2 mm." 



Genus ZOOTECUS, Westerlund. 



Zootecus, Westerlund, Fauna Palaarct. Binnenconchyl. iii, 1887, 

 pp. 3, 75 ; Martens, Arch. Naturg. Ixi, 1895, 1, p. 103, pi. 8, 

 figs. 5, 6 (jaw and radula, Stenogyra insularis), figs. 7, 8 (St. 

 pulla] ; Pilsbry, Man. Conch, ser. 2, xviii, 1906, p. 104. 



Chilogymnus, Jousseaume, M<5m. Soc. Zool. France, vii, 1894, p. 289. 



Shell rather small, pale or white, perforate, pupiform, cylindric 



