Quarterly Journal of Conchology. 291 



east it is quite different. Asia Minor, Syria, and the Caucasus are 

 all rich in Clansilice, second only to the Balkan Peninsula, and 

 indeed it is doubtful whether they be not equally rich^ allowing 

 for the smaller amount of exploration. The prevalent subgenera 

 are somewhat different. In the Balkan Peninsula and Austria the 

 most largely represented subgenera are A/opia, Marpessa, Fusiiliis 

 (chiefly Austrian), Agathylla, Medora (chiefly from the archipelago), 

 Delima and Herilla (Austrian), and Papillifera. In Asia the 

 prevalent subgenera appear to be Laciniaria and Idyla. Alinda 

 is pretty evenly distributed, and Mentissa is equally Asiatic and 

 Crimean. Passing to the East, we find that several species have 

 been discovered in Persia, by the Italian Expedition, and we may 

 conclude that thence the genus has spread through Affghanistan 

 to the Himalayas, where there are several species belonging 

 to the exclusively Eastern subgenus PJuvdusa. In the plains of 

 India proper and the detached mountains of the Indian Peninsula 

 the genus seems to disappear, but strange to say one species has 

 been found in Ceylon. To the eastward it spreads through the 

 Khasia and Cachar Hills to the Indo-Malayan Peninsula, where 

 many species remarkable fcr their size, beauty, and peculiar 

 form have been discovered, as C. ovafa, biilbus and PJiilippiaua, 

 near Moulmein, and the wonderful C. Mouhoti in Cambodia. 

 China and Japan, though comparatively unexplored, have already 

 yielded several species ; the latter especially is remarkable for fine 

 forms, including C' Yokohamensis and C. Pei/iiana, which perhaps 

 surpass even the magnificent C. Mouhoti. To the East the genus 

 appears to die out, though there are several species in Sumatia and 

 Java. In Borneo there are two, in the Philippines and the Moluc- 

 cas there are one each. Finally, the one Alaskan species must be 

 mentioned. 



We have been induced to make this digression In order to 

 explain at one view the distribution of this interesting genus, and 



