

AM IMIIIU'l.lMA. 



-i \\idth of shell below llie middle of its length; extremely tin 'a 

 and xnnii'irtiat tli'.rililf ; corneous, clouded with opaque yellow, and 

 >par>e|y dotted with russet. Whorls '2}-,, the >uture of the first but 

 little descending, hut on the latter half of the hist it falls steeply. 

 Last whorl convex below the suture, then rather compressed laterally. 

 with faint sculpture of slight, irregular growth-lines and numerous 

 roin-se, very />/ spiral cords. Aperture very large, acutely angular 

 posteriorly, at least four-fifths the total length of the shell, ovate ; 

 outer lip regularly tin-note, a little retracted toward the upper inser- 

 tion. 



Alt. \.~), diam. 0.5, length of aperture 13, width 7.3 mill. 



Alt. 13.;"), diam. IS, length of aperture 10.."i, width 7 mill. 



Inland of Dominica, living buried in thick moss on trees in the 

 higher region of the forest, where the vegetation is always dripping 

 with moisture (Guppy). 



Anii>liil>nlinia pardalina Guri'Y, Ann. Jc Mag. Nat. Hist. (4), i, 

 IbGH, p. 432. Succinea pardalina PKH., Monogr. vii, p. 34. 



Amphibulima tiyrina Les., E. A. SMITH, Ann. and Mag. X. II. 

 (G), ii, isss, p. 231. ANCAS, P. Z. S., 1883, p. .";.". 



A pardalina is considered by many authors a synonym of A. 

 tiurina. The latter species, if distinct from pardalina, is not known 

 to modern collectors and authors; hut I do not unite the two because 

 A. tiijrina is described as having but 1 .V whorls, and no spiral sculp- 

 lure is mentioned, while A. pardalina has at least '1\ whorls, and 

 coarse though very low spirals. 



Guppy *8 original description of pardalina is as follows: Shell long- 

 oval, iSucct/ieo-like, thin, flexible, diaphanous, lightly decussated, 

 marked with tawny ; whorls 3; spire small, obtuse ; aperture ninple, 

 dilated in front ; peristome simple, indexed above ; Miture 1 descending. 

 Length 20, widih 11, height of spire ."., width of aperture ;> mill. 



The specimen figured was collected by Dr. 15. Sharp. Fig. 23 is 

 enlarged I" the ~ame scale a- tig. .'! 1 , and drawn bv camera lucida. 

 The nepionic shell is >moolh in the specimens I have seen. 



A. BROWN1 I'il>bry. n. sp. PI. Cl, 6g8. 2S, _".!, :;o. 31. 



Shell oblong, thin, luit not elastic or fragile, corneous-olivaceous, 

 with niiiiienni> irregularly scattered reddish dots. Surface somewhat 

 wrinkled with growth-virile and showing niimerou> very low hut coar-e 

 irregular >|iirals. Whorl< 2',. thr apex decidedly rai>ed ; the suture 



