56 GUDE : LIST OF HELICIOD LAND SHELLS. 



= taivanica, Mdff. (Tryon). v. amblytropis, Pils. 



Genus Eulota, Hartm. sargentiana, Pils. 



Section Eulota, s.s. mellea, Pfr. 



redfieldi, Pfr. friesiana, Mdff. 



sieboldiana, Pfr. nux, Mdff. 



[ = ?Naninasieboldiana,Kobelt] Section Dolichkatlota, Pils. 



touaannensis, Soul. swinhoeana, Pils. 



Section Eulotella, Mts. = Bulinius swinhoei, Pfr. 



similaris, Fer. elongata, Pfr. 



assimilis, H. Ad. = Bulimus(Amphidromus) 



Section Euhadra, Pils. formosensis, H. Ad. 



luhuana, Sow. Genus Plectotropis, Mts. 



swinhoei, Pfr. mackensii, Ad. and Rve. 



bairdi, H. Ad. shermani, Pfr. 



formosensis, Pfr. v. lautsi, Schm. and Bttgr. 



bacca, Pfr. granti, Pfr. 



V. pancala, Schm. and Bttgr. Genus Aegista, Alb. 



succincta, H. Ad. subchinensis, Pfr. 



H. HONG-KONG. 



As its close proximity to the Chinese mainland would lead one to 

 expect, the mollusca of this island are essentially Chinese. No less 

 than nine genera of Helicoids are represented, including such typically 

 Chinese as Plerfopi/lix and Moellemlorjfia ; but Cafhaira is absent. 

 The majority of the species were described by Dr. von Mollendorff, 

 who collected there extensively himself, as did Dr. Hungerford and 

 Mr. T. W. Eastlake. Some remarks by the latter are worth quoting 

 here : " It is remarkable that the Island of Hong-kong should have 

 produced so many indigenous species. A British possession for more 

 than thirty years, hardly one scientific expedition has touched the shores 

 of this ' barren rock in the ocean ' without discovering a new species. 



"There are only a few places where shells are to be found, as the 

 larger part of the island consists of naked rocks, or is sparsely covered 

 by GJeirhenia dichofonia — a fern, which is a sure indication of the 

 absence of terrestrial mollusca. In the valleys, however, vegetation is 

 luxuriant, and it is in these places that most of the shells are to be 

 found. The dense woods of Little Hong-kong (a Chinese village about 

 six miles from the colony) and the little valley near Sheko (ten miles 

 from the colony), are favorite resorts for collectors. Curiously enough, 

 one of the highest peaks on the island, known as High West (1608") 

 is the only place where some of the rarest species are to be found ; in 

 especial Helix 2>ulvinaris, Gould." [Pledopijli^.^ .... 



