262 ENID.E. 



Pupoides tutulus. Kobelt & MolleudorfF, Nachr, Deuts. Malak. Ges. 

 1903, p. 71. 



Original description : — " Shell conical, rather broad at the base, 

 compressly umbilicated, whorls six iu number, rounded, very 

 minutely striated, columella broadly vertically dilated, with a small 

 callosity above, aperture nearly round, lip slightly reflected ; light 

 chestnut, somewhat horny, callosity white." {Reeve.) 



Long. 5|, diam. 3 mill. Ap. 2 mill, longa, Ig lata. (Pfeiffer.) 



Hah. India : Humeerpore, Buudelkhund {Benson) ; Delhi and 

 K^agpore ( Wood- Mason) ; Kutch and 8ind {Stoliczlca, Blanford) ; 

 Patna {Maimvaring). 



Reeve, in illustrating the species, makes no mention of the fact 

 that his figure is enlarged, which is especially misleading owing to 

 his invariable habit of omitting all measurement in the ' Conchologia 

 Iconica.' There is, indeed, a note at the bottom of the page 

 stating, "All exceedingly minute," but this is apt to be over- 

 looked. As 1 have not seen any specimens I have been obliged 

 to quote Pfeiffer's measurements taken from Benson's shells. 

 Pupoides iutidns differs from its congeners at a first glance by its 

 much broader base. 



Genus CERASTUS, von Martens. 



Cerastus (Albers), von Marteus, Die Heliceen, ed. 2, 1860, p. 232 (as 

 section oi Buliminus) ; Jickeli, Nova Acta K. Leop.-Carol. Akad. 

 Naturf. xxxvii, no. 1, 1874, p. 103, pi. 2, fig. 2 (jaw and radula, 

 Bidimimis abyssinicus) ; Scliacko, in Mobius, Beitr. Meeresf. 

 Mauritius u. Seychellen, 1880, p. 340 (radula of abyssinicus) ; 

 Pfeiffer & Clessin, Nomencl. Ileiic. Viv. 1881, p. 286 ; Kobelt 

 & MoUendorff, Nachr. Deuts. Malak. Ges. 1903, p. 40 (genus). 



Type, (first species) Bidimus distans, Pfeiffer. 



Range. India, Africa. 



Shell rimate, ovate, costulate or striate, thin, corneous ; whorls 

 6-7 convex, last whorl about equalling the spire ; aperture 

 rotundate- ovate, peristome reflexed, margins approaching, united 

 by a thin callus. 



Jaw 1"5 mm. across, slightly curved, yellowish corneous, strong, 

 and exhibiting distinct, fairly regular lines of growth, which are 

 crossed by stronger transverse strise, which under a more powerful 

 lens appear as irregular fine riblets. {Jickeli.) 



Eadula 4 mm. long, 1*5 mm. broad, tapering anteriorly, with 

 133 transverse rows, which ascend towards the margin, then 

 descend and terminate horizontally. Longitudinal rows from 91 

 to 101. Central tooth varying from 0030 to 0'036 mm. in length. 

 Laterals characterized by prominent cutting edges on either side, 

 and a basal plate elongated posteriorly and projecting somewhat 

 wing-like towards the outer side. (Jickeli.) 



Grenitalia unknown. 



