CERASTUS. 269 



number, convex, obliquely striated, columella broad, vertical, 

 aporture small, rounded, lip thin; dull horny." (lieeve.) 



Long. 11, diani. 6 mm. {e,v icon.). 



Hah. India : Simla {Benson) ; Chinab Valley, Kashmir (var. 

 piisllhis, Theobald). Turkestan : Hills near Schachimardan (var. 

 minor, Fedtsclienko). 



Theobald recoi-ds the finding in Kashmir of a single specimen 

 of what seemed to him a variety of segregatus, but it had an ab- 

 normal look about it. It measured ll"2x5 mm. and had the 

 ordinary horny appearance of ccelehs and its allies. A smaller 

 form, which he names var. pusiUus, he also considered to pertain 

 to this species and was far from rare in the Chinab Valley above 

 6000 feet. It only measured 9 x 3*8 mm. Pfeiffer records the 

 following measurements from shells in the Benson collection : — 

 Long. 13, diam. 7 mm. A^. 5 mm. longa, 3-5 lata. 



I have not seen specimens, and the type appears to be lost. 



239. Cerastus densus, P/^?^er. 



Btilimus (Pctraeus) densus, Pfeifter, Malak. Blatt. ii, 1856, p. 1-54. 

 Bulimus densus, I'feift'er, Mon. Helic. \iv. iv, 1859, p. 424 : ibid., 



Novit. Oonch. ser. 1, iii, 1868, p. 377, pi. 87, figs. 2.5, 26; 



Ilaiiley & Theobald, Conch. Ind. 1874, pi. 79, fig. 6. 

 Buliminus ( Cerasttts) densus, Nevill, Hand List, i, 1878, p. 286 ; 



Kobelt, Conch.-Cab., Fam. J^uhminidae, 1901, p. 686, pi. 103, 



Bulimina {Cerasttis) densa, Pfeifler & Clessin, Nomencl. Helic. Viv. 



1881, p. 286. 

 Cerastus densus, Kobelt & MoUendorff, Nachr. Bents. Malak. Ges. 



1903, p. 40, 



Original description : — " T. profunde rimata, subperforata, ovato- 

 conica, solidula, dense costulato-striata, vix iiitidula, pallide caruea; 

 spira conica, obtusiuscula ; sutura obsolete marginata ; anfr. 6, 

 convexiusculi, ultimus spira vix bi'evior, basi compressus ; colu- 

 mella leviter arcuata ; apertura parum obliqua, elliptico-ovalis; 

 perist. albo-labiatum, marginibus conniventibus, dextro arcuato, 

 expanso, coluuiellari late patente. 



"Long. 20, diam. 10 mill. Ap. c. perist. 10 mill, longa, 74 

 lata." {Pfeiffer.) 



Hah. India : Malabar {Fairbanh) ; Ahuiednuggar {Blanford) ; 

 Poona {Stoliczlcu). 



Pfeiffer indicates a var. /3 " elongatus, basi subangulatus ; long. 

 24^, diam. 10 miU." 



The Beddome collection contains five specimens, from Ahmed- 

 nuggar, which were labelled ji'erf^m", but which, without hesitation, 

 I refer to densus. 



C densus dif^ars h'om C.jerdoni in having a more attenuated 

 spire, the whorls increase less rapidly, and the lip, while more 

 thickened, is less refiexed. The sculpture is also different, the 

 transverse strije being a trifie coarser and more regularly spaced, 



