COOKE: ON THE GEXUS CLAUSILIA. 



265 



possible after the discovery, by von Mollendorff, of Caryehium, 

 Acanthimda, and Pyramidula, on the high regions of Java. 



A list of the known species is subjoined ; the date is the date of 

 description. 



Sumatra. 

 1864.^ Pseudonenia sumatrana, Mts. 

 1864. P. excurrens, Mts. 

 1867. Euphcediisa obesa, Mts. 

 1891. Pseudonenia alticola, Mts. 

 1893. Euphcedusa cenigmatica, 



Sykes. 

 1893. E. vielvilli, Sykes. 

 1906. E. robustior, Bullen. 



1864. 



1841. 

 1842. 

 1842. 



Java. 

 Pseudonenia javana, Pfr. 



P. corticina, Busch. 



P. orientalis, Busch. 

 1847. Acrophcudusa cornea, Phil. 

 1847. A. junghuhni, V\i\\. 

 1847. Pseudonenia heldii, Kiist. 

 1849. P. heldii, var. moritzii, Mouss. 

 1890. P. salacana, Bttg. 

 1897. P. schepmani, Mdff. 

 1897. P. nubigena, Mdff. 

 1897. P. fruhstorferi, Mdff. 



Borneo. 

 1854. Formosana borneensis, Pfr. 

 1868. F. schwaneri, Herkl. (Pfr.). 

 1889-1901. Euphcedusa dohertyi, 



Bttg. 

 1903. £■. (?) filialis, Mts. 



Philippines (I. Siquijor). 

 1845. Euphcedusa cumingiana, Pfr. 



1845. 

 1897. 



1845. 



Selangoe. 

 Euphcedusa cuvmigiana, Pfr. 

 E. cumingiana, Pfr., var. 

 simillima, Smith. 



Celebes. 



Euphcedusa cumingiana, Pfr. 



var. moluc- 



E. cumingiana, 



censis, Mts. 

 1883. E. cumingiana, v&t.majuscula, 



Tapp.-Can. 

 1897. E. cumingiana, var. simillima. 



Smith. 

 1912. E. cumingiana, var. kabaence, 



Haas. 

 1896. Parax)h(edusasubpolita,^vcn.ih.. 

 1896. P. usitata. Smith. 

 1896. P. celcbensis, Smith. 



1896. Euphcedusa alternata, Mdff. 



1897. E. pyrrha, Sykes. 

 1897. £■. makassarensis, Sykes. 

 1897. E. balantensis, Sykes ( = cele- 



bensis, Bttg., nee Smith). 

 1899. E. bonthaiensis, Sar. 

 1899. E. minahassce, Sar. 



SuLU Islands. 



1845. Euphcedusa. cjwiingiana, Pfr. 

 1864. E. cxcmingiana, var. moluc- 



ce7isis, Mts. 

 1894. Pseudonenia suluana, Mdff. 



Sangir. 



1845. Euphcedusa cumingiana, Pfr. 

 1864. E. cumingiana, var. moluc- 

 censis, Mts. 



1894. 



SUMBAWA. 



Pseudonenia recondita, Sykes. 



Halmaheira and Ternate. 



1845. Euphcedusa cumingiana, Pfr. 

 1864. E. cumingiana, var. moluc- 



censis, Mts. 

 1894. Pseudonenia recondita, Sykes. 



III. iS'ENIA. 



Clausilia is conspicuously absent from the list of those genera which 

 are described as ' circumpolar ', and is thus entirely wanting in the 

 Nearctic Continent. Although well represented in South America, 

 even on the Equator, it has not succeeded in entering North or even 

 Central America via the Isthmus of Panama. Probably the more 

 low-lying and therefore hotter countries of this region are unsuitable 



^ The dates are the dates of the year in which the species or variety was 

 described. 



