HORX EXPEDITION—MOLLUSCA. 
211 
respect of exact detiiiitiou may reasonably be raised. Frauenfeld did not figure 
his two species till late in 1865, whereas the publication of Tryon’s species is 
dated July, 1865. The question of identity of these three species should be 
remitted to Europe, as the type of B. schraderi is in the Cummingian Collection 
and that of B. vertiginosa in the Imperial Museum at Vienna. 
Localities. —River Neales and Storm Creek, near Oodnadatta (taken alive), 
and in dry bed of Blood’s Creek and Boggy Flat, near Mt. Daniel j also in Pliocene 
travertine, near Dalhousie Springs. 
The South Australian examples fairly agree with those fi’om the east coast of 
New South Wales, though reaching to a larger size. Some variability in shape 
must be allowed in shells of this group, which also exhibit a slight sexual 
dimorphism. 
The sporadic distribution of this species is quite exceptional among the fresh¬ 
water mollusca of Australia. The known occurrences are Mulgoa Creek, near 
Penrith, and about Parramatta and Chatsworth in New South Wales for B. 
hyalina, Braz. •, Victoria River, N. Australia, for B. australis, Smith ; and in 
the more central parts of the continent as above recorded. 
Family LiMNiEiD^. 
Limn sea vinosa, Ad. and Ang. 
Atnphipeplea vinosa, A. Adams and Angas, P.Z.S., 1863, p. 415, 
Limmca vinosa. Reeve, Icon. Conch., t. 6, f. 37, 1872. 
From analogy of shell-form I had inferred in 1882 that this species was a 
Linuuea, and I am now in a position to affirm that generic position. 
The vinous colour is not constant, not only among the specimens of the 
present collection, but also of those obtained by myself in the Mary River—the 
locality of the type. The present examples compared with those of Arnheim 
Land are smaller, more shouldered, and the last whorl is not so ventricose. 
Localities. —Palm Creek, off Glen of Palms; and Ollara Water on the 
Darwent River (taken alive). Dead shells in Walker River at Tempe Downs, and 
in Finke River at Running Water. 
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