26 lieut.-col. h, h. godwin-austen on [jan. 6, 



Xesta decrespignyi. 



Nanina {Xesta) decrespignyi, Higgins, P. Z. S. 1868, p. 179, 

 pi. xiv, fig. 4 ; Issel, Ann. Mus. Civ. Genova, vi. p. 392, t. v. 

 figs. 13-15 (1874). 



Hab. Trusan {A. Everett). 



The animal has exactly the same form of shell-lobes as in X. glu- 

 tinosa above described. 



Nov. var. pallida fasciat a. 



In Dr. Hungerford's collection there is one specimen which in 

 everv respect resembles this shell except in coloration, this being of 

 the pale yellowish tint of X. glutinosa, and like that shell having a 

 single thin dark band on the periphery, a similar variation to that 

 met with in X. glutinosa, only in an opposite direction. 



Xesta (?) brotii. 



Helix brotii. Bonnet, Rev. Zool. 1864, p. 67, pi. v. fig. 1 ; 

 Pfeiff. Monogr. Helic. v. p. 460 (1868) ; v. Martens, Preuss. Exped. 

 Ost-Asien, Landschneck. p. 397 (1867). 



Hemiplecta densa. 



Helix densa, Adams & Reeve, Zool. Voy. Samarang, Moll. p. 62, 

 pi. xvi. fig. 8 (1850) ; PfeiflP. Monogr. Helic. iii. p. Ill (1853), et 

 V. p. 180 (1868). 



Helix schumacheriana, Pfeiff. Zeitschr. f. Malak. 1850, p. 70; 

 id. Monogr. Helic. iv. p. 110 (1859); Metcalfe, P. Z. S. 1851, 

 p. 70; Reeve, Conch. Icon. pi. Ixxiii. fig. 379 (1852). 



Nanina corrosa, Mousson, Journ. d. Conch, vi. p. 156 (1857). 



Helix corrosa, Pfeiff. Monogr. Helic. iv, p. 348 (1859). 



Nanina herklotsiana, Dohrn, Malak, Blatt. vi. p. 206 (1859). 



Nanina atrofusca, Albers, Helic. ed. ii. p. 53 (1860). 



Hemiplecta schumacheriana, Wall. P. Z, S. 1865, p. 406. 



Nanina densa, v. Martens, Preuss. Exped. Ost-Asien, Land- 

 schneck. p. 230, t. X. fig. 1 (1867). 



Animal : — The extremity of the foot is rather square, the mucous 

 gland large, not extending to the sole of the foot, and with apparently 

 no overhanging lobe. The right dorsal lobe is of usual size, but the 

 left is very poorly developed, being very narrow and separated 

 into two parts, the posterior portion being narrow and only 6 millim. 

 long ; in the space between them lies a small left shell-lobe, flat and 

 tongue-shaped ; a right shell-lobe is also present, which would appear 

 in life to be broad and triangular in outline. 



The odontophore is like that of H. humphreysiana from Singapur, 

 the type of the geniis Hemiplecta. Jaw circular, no central projection. 

 The shells had been taken evidently in the cold season, and the 

 generative organs were not fully developed in the specimens I dis- 

 sected, but enough was seen to show the presence of a long simple 

 amatorial organ, and the male organ also as in Hemiplecta. 



