Streptaxis (?) 1 Rhytida 1 Paryphanta (?) 1 Helicarion 2 Xesta 1 Macrochlamys 1 Hemiplecta 3 Microcystis 2 Trochomorpha 22 Nanina (?) 2 Patula 1 Thalassia 2 Chloritis 3 Philina 2 Hadra 3 Papuina 50 Merope 1 Corasia (?) 10 Placostylus 16 Partula 13 Succinea 1 Melania 18 Diplommatina 2 Pupina 4 Leptopoma 4 Omphalotropis 2 Cyclotus 1 Cyclotropis 2 Helicina 7 Unio 1 (_b_) _The Queensland Province._--The strip of coast-line from Cape York to the Clarence R. stands apart from the rest of Australia, and is closely connected with New Guinea. There can be little doubt that it has been colonised from the latter country, since an elevation of even 10 fathoms would create (see map) a wide bridge between the two. Many of the genera are quite strange to the rest of Australia. Land operculates are abundant, and of a Papuan type. Several of the characteristic Papuan genera of _Helix_ (_Papuina_, _Chloritis_, _Planispira_) occur, while _Hadra_ attains its maximum. _Panda_, _Pedinogyra_, and _Thersites_ are three remarkable groups in a rich _Helix_ fauna. _Parmacochlea_ is a peculiar form akin to _Helicarion_. The carnivorous Mollusca are represented by _Rhytida_, _Diplomphalus_ (New Caledonia), and _Elaea_. One species of _Janella_, a slug peculiar to this region, occurs. The predominant fresh-water genus is _Bulinus_ (_Isidora_). _Ampullaria_ and _Anodonta_ are entirely absent from Australia and New Zealand. [Illustration: FIG. 214.--Characteristic Australian _Helices_: =A=, _H._ (_Hadra_) _pomum_ Pfr.; =B=, _H._ (_Thersites_) _richmondiana_ Pfr. × ⅔.] [Illustration: Map D. _To face page 322._ MAP to illustrate the relations OF THE LAND MOLLUSCA OF NEW GUINEA WITH THOSE OF NORTH AUSTRALIA. _The red line marks the 100 fathom line_ London: Macmillan & Co.] _Land Mollusca of the Queensland Province_