GUDE : LIST OF HELICOID LAND SHELLS. 



57 



"The wliole eastern side is covered with a dense growth of small 

 ficus, acanthaceae, and orchidaceous plants, and these, protected from 

 the violence of the north-east monsoon, form a favorite shelter for the 

 mollusca. Unluckily, the peak is only accessible from the south, and 

 thus almost the entire eastern side is beyond reach. Still one can 

 decend safeh' thirt\- or forty )'ards below the peak, although great 

 precaution is necessary, for granite boulders abound, and the slippery, 

 as well as insecure footing these afford, renders a greater decent 

 impossible." 



Family Zonitidae. 

 Sub-family Maeroehlaminae. 

 Genus Macrochlamvs, Bens. 



discus, Mdff. 



superlita, Morel. 



nitidissiina, Mdff. 

 Genus MiCROCYSTiNA, Morch. 



schmackeriana, Mdff. 



eastlakeana (Mdff), Eastlake 

 (nom. nud.). 



stenomj)haIa, Mdff. 

 Sub-family Heliearioninae- 

 Genus Cryptosoma, Theob. 



V. imperator, Gld. 

 imperatrix. West. 

 Genus Kali ELLA, Blf. 



depressa, Mdff 



hongkongensis, Mdff. 

 Family Helieidae. 

 Genus Plectopvlis, Bens. 



Section Sinicolo, Gude. 



pulvinaris, Gould. 

 Group Epiphallogona, Pils. 

 Genus Camaena, Alb. 

 Sub-genus Camaena, s.s. 



cicatricosa, Miill. 



xanthoderma, Mdff 

 V. minor, Eastlake. 

 Group Belogona, v. Iher. 

 Belogona Euadenia, Pils. 

 Genus Eulota, Hartm. 

 Section Eulotella, Mts. 



similaris, Fer. 



v. hongkongensis, Desh. 

 Genus Plectotropis, Mts. 



gerlachi, Mdff 

 Belogona Siphonadeni.\, Fer. 

 Genus Helicodonta. Fer. 

 Sub-genus Moellendorffia, Anc. 



eastlakeana, Mdff. 



trisinuata, Mts. 

 I. HAINAN. 

 Most of the Helicoids of this island were described by Dr. von 

 Mollendorff from O. Herz's collections. Of Zonitiilan seven species 

 are known, and of HeUridae six species, all exhibiting decided affinity 

 with the forms from southern China and Indo-China. 



Family Zonitidae. 

 Subfamily Maeroehlaminae. 

 Genus Macrochlamvs, Bens. 



cincta, Mdff 

 Genus Microcystina, Morch. 



sinica var. hainanensis, Mdff 

 Genus Hemiplecta, Alb. 



filicostata, Mdff 

 Sub-family Heliearioninae* 

 Genus Sitala, H. Ad. 



I. Pioc. Ar.-id. N<-t. Sci. Philad., 1882, p. 232. 



