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Show 336 DR. O. F. VON M O E L L E N D O R F F O N [June 2, narrow whorls. Taken in this sense, the genus Chloritis includes to my knowledge the following species : - Solomon Islands: C. hombronis, Pfr., erinaceus, Pfr., gaimardi, Desh. Torres Strait: C. buxtoni, Braz., brevipila, Pfr. Philippine Islands : C. sanziana, liombr. & Jacq., spinosissima, Semp., quieta, Reeve, leytensis, v. Molldff., brevidens, caliyinosa, Ad. & Rve., malbafensis, Hid. Malav Archipelago : C. tomentosa, Pfr., crassula, Phil., gruneri, Pfr. Malay Peninsula : C. deliciosa, Pfr., breviseta, Pfr., malayana, v. Molldff., penangensis, Stol., delibrata, Bens., gabata, Gld., procumbens, Gld., hardouini, de Morg., wrayi, de Morg., samuiana, v. Molldff. China: C. herziana, v. Molldff., hungerfordiana, Nev.,fran-ciscanorum, Gredl., 1 submissa, Desh. Fossil: C. lepidotricha, Alph. Br. I have no doubt that there are many more species to be placed in this interesting genus, but I have purposely only mentioned those examined by my>elf. The name Philidora, de Morgan, is to be entirely rejected, although Prof, von Martens has rendered it the unmerited honour of adopting it for H. gabata (J. Linn. Soc, Zool. xxi. 1887, p. 162). As the author says himself (/. c. p. 36, note), the name is meant to replace Philina, Albers, the latter being preoccupied by Philina, A^canius (1772). Now Philina, Albers (Bel. 1st ed. 185*0, p. 119) contains mostly species of Obba, a few Planispirce, and only one Chloritis (brevidens, Pfr.), and was already in the second edition referred to the synonymy of Obba. There was therefore not the slightest reason to revive and to rename it. To create a new group for the species in question was also unnecessary, as they without any doubt belong to Chloritis. Only if it was thought advisable to make a special subgroup or section of all carinated forms of Chloritis, the name might be retained ; but as we have species of Chloritis with rounded, subangulate, angulate, and keeled periphery, such subdivision would be artificial and unscientific. Fam. BULIMID^E. 30. AMPHIDROMUS PERVERSUS, Linn. Perak (Townsend) ; all over Perak and Patani (de Morgan). 31. AMPHIDROMUS MELANOMMA, Pfr. Mt. Tchora, Mt. Tchehel (de Morgan). Otherwise known from Singapore, Penang, Borneo. 32. ? AMPHIDROMUS CHLORIS, Reeve. Larut plain and Kinta valley (de Morgan). Described from the Philippine Islands, so that its occurrence in Perak is somewhat surprising. I cannot but doubt the correctness of the identification. |