Binnoy oil Terrestrial Mollusks. 189 



oped basal ridge or carina are the characteristics of this 

 species. 



Both of the figures are from Chemnitz. PfcifFer refers 

 to them as representing his species. 



TRUNCATELLA PULCHELLA Pieiffer. 

 Plate LXXV. Figukes 1, 9, 10. 



T. subrimata, oblongo-subcyliiidrii-a, <>racilis, riifo-cornea vol succinea, 

 rarius hyalina, iiitida, subpellucida, subtilitcr costulata ; costulis vix eleva- 

 tis, filiformibus, intcrstitia non a^quantibus, ad suturam raediocrem sa3pe 

 distinctioribus ; ani'r. superst. 4-4i modlce convexi, lente accrescentes, 

 ulfimus infra medium plerumque liuvigatus, basi breviter compresso-cari- 

 natus; apertura subverticalis, oblique fore elliptica, basi subeffusa ; perist. 

 simplex, continuum, expansiusculum, margine dextro crista levissima 

 cincto. (Pfr.) 



SYNONYMS AND REFERENCES. 



Truncatella pidchdla Pfeiffer, in Wiegin. Arch. 1839, i. 356; in Zeitsch. f. 

 Mill. 1846, p. 186; in Mon. Anric. Viv. 192; Mon. 

 Piieum. Viv. ii. 8. 

 Shuttleworth, Diag. 7, p. 155 

 Chemnitz, ed. 2, Auric. 10, pi. ii. figs. 11-15. 



DESCRIPTION. 



Animal not observed. 



Shell subperforated, or grooved, oblongly subcylindrical, 

 light, reddish horn-color or amber, shining, pellucid, lightly 

 ribbed ; ribs scarcely elevated, threadlike, at iiTegular in- 

 tervals, often more distinct at the moderate suture ; re- 

 maining whorls 4 to 4g, rather convex, gradually increasing 

 in size, the last generally smooth below the middle, com- 

 pressly carinated at its base; aperture subvertical, oblique- 

 ly elliptical, enlarging at base ; perist. simple, continuous, 

 somewhat expanding, and furnished with a slight ridge at 

 its right extremity. 



Length 4i-5, diameter l|-2, length of aperture 1^; mil- 

 limetres. 



Geographical Distribution. I detected specimens of 



