74 LAND AND FRESHWATER 



Hemipiecta humphreysiana, Lea. (Plato LXXX, figs. 6 -6 b and 

 Plate LXXXI. figs. 1-1 e.) 



Helix liumphreysiana, I. Lea, Trans. Amer. Phil. Soc. vol. vii. 

 p. 463 (1841) (read February 21st, 1841), pi. xii. fig. 16. 



Helix humphreysiana, Chcmn. cd. ii. Helix, no. 168, t. xxxi. f. 3 

 & 4 ; Fer. Hist. iivr. xxxiv. t. 2. f. 7 ; Pfr. vol. i. p. 43 : " Var. /3, 

 pallide lutea, absque fascia, basi fulvesceyis (Mus. Cuming).'' 



Hemij^lecta humphreysiana, Albers, Die Heliceen, 1850, p. 60 

 (a list of 20 species given, but types not defined) ; id. 2nd ed. 

 by Ed. von Martens, 1861, p. 52, made the type. 



Nanina {Hemiplecta) humphreysiana, Nevill, Hand-list, p. 46 

 (4 sp. from Singapur); Clessin, Nomen. Helie. vivent. Pfr. 

 pp. 48, 49. 



Nanina humphreysiana, var. complanata, from Singapur, von 

 Martens, Preuss. Exped. Ost-Asien, t. 10. f. 2 (18()7). 



Nanina humphreysiana, var. bifasciata, von Martens, Preuss. 

 Exped. Ost-Asien, t. 10. f. 4 (1807). 



Nanina humphreysiana, Wallace, P. Z. S. 1865, p. 406. 



Original description : — " Testa orbiculato-conoidea, suhttis con- 

 vexa, minute rugosa, albido-ftilva, ad peripheriam fasciaia, late 

 icmbilicata, ptrofunde perforata ; anfractibus senis, convexis; apertura 

 submagna, obliqua ; labro acuta; columella Icevi. 



" Shell orbicular-conical, convex beneath, minutely wrinkled, 

 tawny, banded on the periphery, widely umbilicate, deeply per- 

 forate ; whorls six, convex ; aperture rather large, oblique ; lip 

 acute ; columella, smooth. 



" Hab. Pondicherry (^S. Humphreys) ; Singapur (J. Balestier). 



" My cabinet. Diam. 1-9. 



" Remarks. About a year since, Mr. Humphreys kindly pre- 

 sented me with several specimens of this shell ; and subsequently I 

 have received two or three from ]\[r. Balestier, of Singapur. In 

 general outline it resembles H. unidentata, Lam. Its spire is 

 elevated. Some individuals have an indistinct baud over the dark 

 one of the periphery." 



We may dismiss the Pondicherry habitat with the above original 

 description and figure of the shell, for nothing approaching it is found 

 in Madras. Fortunately the true habitat — Singapur — can be fixed 

 upon without doubt of any sort. In the old days, and even up to 

 very recently, geographical distribution was of no consideration, 

 and the place from which a collection was despatched was sufiicient 

 for the describer to indicate. 



Description. The animal (Plate LXXX. figs. 6, 6 a) has the foot 

 divided below, pallial line distinct : the surface above on the sides 

 apparently rather rough or warty. The mucous pore, from the very 

 puckered state in the spirit-specimens, is wide and large in the 

 living animal, with an overhanging lobe. The right shell-lobe 

 (fig. 6) is short and triangular in shape ; the left shell-lobe (fig. 6 o) 

 is narrow and ribbon-like, giving off a tongue-shaped process 

 just above the commencement of the posterior portion of the left 



