272 
developed Helices constituting Tribe 5, BELoGona, which is ab- 
sent in Australia. To Tribe 4 belongs the large number of our 
helix-like shells (144) having an expanded or reflected lip. They 
are grouped into several genera, based on shell characters only. 
This group is absent in Tasmania, New Zealand, and New Cale- 
donia, but ranges northward to Ne ew Guinea, Southern Asia, and 
Japan. In America it covers West Indies, Northern South 
America. The distribution of the Australian examples of 
epiphallogonous Helicide is as follows :— 
Chloritis in its wide acceptation extends from North Australia 
to Southern China, but its typical forms belong to the Malay- 
Papuan region. The Australian species, 14 in number, are 
divergent forms, and included in the Section Austrochloritis, with 
which are associated a few Papuan species. 
Planispira is an Indo-Malayan and Papuan genus, but the 
aberrant group, Angasella, is restricted to Australia. 
Angasella, containing nine species, is characteristic of the 
Eremian region, whilst the subgroup, Z'’rachiopsis (11 species), is 
confined to the costal tracts of N.W. and N.E. 
Thersites is almost wholly Australian, strictly Austro-Papuan, 
a few species occurring in Papua and adjacent islands. 
Thersites (sensu stricto) comprises two species inhabiting the 
coast-region of subtropic Queensland and New South Wales. 
Glyptorhagada contains seven species, confined to South Aus- 
tralia, but dominant in the Eremian region. 
Badistes has 42 species distributed throughout the subtropic 
and temperate parts of the continent, and extending from the 
coast to the dry interior. 
Spheerospira, with 47 species, inhabits Queensland, with a few 
forms in Papua, being replaced southward by Badistes and west- 
ward by Waeiiion Wie 
Hadra, as now restricted, consists of three North Queensland 
species. 
Xanthomelon comprises six species, five of which inhabit 
Queensland and one Arnheim Land. 
Rhagada includes ten species belonging to die coast and 
islands of North Australia, chiefly North- West, and of four 
species in the islands north of Timor Sea. 
Papuina is a large and exclusively arboreal genus inhabiting 
Papua, the Solomon Archipelago, the Moluccas, but having its 
southern limit in North Queensland, where it is represented by 
seven species. 
