1882 ] O. F. von Mollendorff — On a collection of Japanese ClausiliaB. 3 



suhinflatus, irregulariter costulato-striatus ; apertura subohliqua, rotun- 

 dato-piriformis, sinulo recto, peristoma continuum solutum, superne vix 

 sinuatum, valde protractum, expansum, rejlexiusculum, parum incrassatum ; 

 lamella supera ohsoleta, interduin in margine perisfomatis nodali instar vix 

 distinguenda, lamella spiralis recedens, lamella infera a margine valde 

 remota, late arcuata, suhcolumellaris immersa. Plica principalis onodica^ 

 palatalis una supera hrevis cum lunelld interruptd fere obsoletd subtus 

 ramum parvum retrorsum mittente convexa. Glausiliam latissimum, sub' 

 quadratum antice acuminatum. 



Alt. 121 lat. 21, apert. alt. 2f , lat. 2 mm. 



Hab. Nara in insula Nippon. 



In its closing apparatus this pretty little novelty greatly resembles 

 Clausilia proba. The upper parietal lamella is, in the majority of speci- 

 mens, only marked by a slight thickening of the lip. Rarely there is a 

 minute knob. After a distinct interval the " lamella spiralis" sets in. The 

 lamella infera is somewhat like that of Clausilia digonoptyx, Bottg., so 

 that the parietal lamellae would approach very close to one another, if the 

 upper one were properly developed. The specific character of our species 

 is the fine sericine epidermis with alternating white and brown spots. 



b. Group of Clausilia valida, Pfr, = Stereophaedusa, Bottger, Clausilienstudien, 

 p. 61. 



5. Clausilia hilgendorfi. 



1877. Clausilia Hilgendorji, v. Martens, Sitz. Ber. Ges. Nat. Fr. Berlin, 17 April, 



p. 106. 



1877. Bottger, Glaus. Stud. p. 60. 



1878. „ Syst. Verz. p. 55. 



1879. Kobelt, Fauna Jap. p. 76, t. ix, f. 2. 



Three specimens of a large Clausilia, from 30 to 35 millim. in length, 

 of a dark chestnut-brown colour, collected by Mr. Hungerford at Chinsinji, 

 agree very well with Prof, von Martens' diagnosis and Kobelt's figure of 

 G. Hilgendorfi. In one specimen the subcolumellar lamella is somewhat 

 receding. 



6. Clausilia Kobensis. 



1876. Clausilia Kobensis, Edg. Smith, Quart. J. of Conchology, i, p. 122 



(February). . 



Nipponensis, Kobelt, Jahrb. D. Mai. Ges. iii, p. 275, t. viii, 



f. 3,4. 



1877. japonica, E. von. Martens, Sitz. Ber. Nat. Fr. Berlin, p. 108 



(an Crosse ?). 

 ■ ■ japonica (cum var. Nipponensis), Bottger, Claus. Stud. p. 62. 



1878. Syst. Verz. p. 



1879. Kobelt, Fauna Jap. p. 75, t. viii, f. 10, 11. 



