HKI.IX. 249 



whorls 5, slightly convex, sensibly increasing, the last rotund, at 

 the periphery white-zoned, scarcely descending anteriorly, base ra- 

 diately marked with brown ; aperture oblique, rotund-lunar; peri- 

 stonie subsimple, the upper margin almost straight, lower briefly re- 

 flexed, much dilated and almost adnatc at the umbilicus. 



Diam. 43, alt. 26 mill. (Rossvtaessler). 



Constantinople. 



I know the species only by Rossmaessler's description, above trail 

 lated. He mentions a var. ft. which is larger, and partly covered 

 by a deciduous yellowish cuticle. 



H. PHILIBINENSIS (Frivaldszky) Rossm., 1839. PI. 67, fig. 100. 



Imperforate, depressed-globose, rather thin, plicate-striate, under 

 a lens decussated with spiral lines, white, with three narrow brown 

 bands above, and two separated, wide ones below ; spire slightly 

 elevated, obtuse ; whorls 4, slightly convex, the last inflated ante- 

 riorly descending, aperture oblique, lunate-rotund, within concolored ; 

 peristome simple, white, right margin deeply arcuate, columellar 

 margin declivous, dilated, appressed. Diam. 24, alt. 16 mill. 



(Pfei/er). 



It'iiHt'/iii : Macedonia. 



This is If. Philibensis (Friv.) Pfr. ('! ). Rossm aessler says : " Der 

 name soil wahrscheinlich Philippinensis helxni." 



Pfeitfer's description is given above. He gives as synonym " H. 

 Philibensis Friv. in sched. ! Nee H. Philibinensis Purr., Roxxin." 



The figure represents Rossmaessler's form. 



H. NILOTICA Bourguignat, 1863-. PI. 68, fig. 16. 



Covered im perforate, large, globose-conic, coarsely striate, almost 

 costulate at the sutures, pale whitish brown, and obscurely zoned 

 with whitish; spire elevated conic, apex smooth, obtuse; whorls ">.', 

 slightly convex, rapidly increasing, separated by an impressed suture , 

 the last large, rotund, slightly descending at the aperture ; aperture 

 slightly oblique, lunate-rotund ; peristome simple, slightly thicken- 

 ed, obtuse; columellar margin nearly straight, expanded, widely 

 reflected, margins joined by a thin parietal callus. 



Diam. 38, alt. 42 mill. (Bourguignaf). 



Damiette, A'.'////''. 



H. VULGARIS (Parreyss) Ros.-m., 1S35I. PI. 57, fig. 19 ; pi. ."!. ti^-. 

 45, 46. 



Imperforate, depressed-globose, rather thin, obliquely striate, de- 

 cussated by spiral impressed lines ; yellowish, with four or five deep 



