336 DR. o. F. VON MOELLENDORFF ON [June 2, 



narrow whorls. Taken in this sense, the genus Chloritis includes 

 to my knowledge the following species : — 



Solomon Islands : C. hombt^onis, Pfr., erinacetis, Pfr,, gaimardi, 



Desh. 

 Torres Strait : C. huxtoni, Braz., hrevipila, Pfr. 

 Philippine Islands: C sanciana, Hnmbr. & Jacq., spinosissiina, 

 Semp., quieta, Reeve, leytensis, v. Molldff., brevidens, Pfr., 

 caliginosa. Ad. & Rve., malbatensis, Hid. 

 Malay Archipelago : C. tomentosa, Pfr., crassula, Phil., gruneri, 



Pfr. 

 Malay Peninsula : C. deliciosa, Pfr., breviseta, Pfr., malayana, 

 V. Molldff., jjenangensis, Stol., delibrata, Bens,, gabaia, 

 Gld., procumbens, Gld., hardouini, de Mcrg., wrayi^ de 

 Morg., samuiana, v. MoUdfT. 

 China: C. herziana^ v. Molldff., A w??.9er/b?'c?eana, Ne v., //•«??- 



ciscanorum, Gredl., 1 submissa, Desh. 

 Fossil : C. lepidotricha, Alph. Br. 

 I liave no doubt that there are many more species to be placed in 

 this interesting genus, but I have purposely only mentioned those 

 examined by myself. 



The name Philidora, de Morgan, is to be entirely rejected, although 

 Prof, von Martens has rendered it the unmerited honour of adopting 

 it for //. 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, Ascanius 

 (175^2). Now P^/Zmfl, Albers (Plel. 1st ed. 1850, 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 ; hut as we have species of Chloritis 

 with rounded, subangulate, angulate, and keeled periphery, such sub- 

 division would be artificial and unscientific. 



Pam. BuLiMiD^. 



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, Penaug, 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. 



