106 Miss G. Ricardo on the Tabani //-o/^i the 



H. infelix (Smith *) appears to be the nearest ally of this 

 species. Its spire, however, is more raised, the peripheral 

 keel even more acute, the umbilical perforation a trifle 

 larger, and the form of the aperture rather different. 



Papuina lUimn, Fulton. 



Hub. Choiseul, one of the Solomon Islands. 



The exact locality of this species has not hitherto been 

 recorded. It is remarkable that this very distinct species 

 should have been considered by Dr. Cox (Proc. Zool. Soc. 

 1873, p. 567) as a variety of P. xanthochila, Pfr., quoted by 

 Pilsbry as from Bougainville Island. 



The difference in the number of volutions pointed out by 

 Mr. Fulton is not constant, for both the two specimens in 

 the ]\luseum have six whorls (not 5^). Both are much 

 finer than the shell figured by him and resemble that 

 represented in the Proc. Zool. Sue. 1873, pi. xlviii. fig. 7. 



Papuina Dampiei'i (Angas). 



Heli.v {Geotrochus) Dampieri, Angas, Proc. Zool. Soc. 18G9, p. 47, 



pi. ii. fi*. 6. 

 Papuina Dampieri, Pilsbry, Man. Concli. vol. vii. p. 11. 



Hab. Choiseul Island {Meek) ; Louisiade Archipelago 

 {Angus) ; Choiseul Bay, Bougainville Straits i^Guppy) ; 

 Bougainville Island {Fulton, in Brit. Mus.). 



I am inclined to think that the original locality assigned 

 to this species must be erroneous, for its occurrence at such 

 a remote place separated by three hundred miles of sea is 

 most improbable. 



XXIV. — Notes on the Tabani from the Paleem'dic Region in 

 the British Museum Collection. By Gertrude Ricardo. 



"While going through the Tabani from the Palsearctic Region 

 in the British Museum Collection I ascertained several 

 particulars as regards the species described by Walker, and 

 identified various species in the collection of Diptera from 

 Algeria by the Rev. A. E. Eaton, and append a few notes 

 which may be of use. Brauer's work on the European 

 Tabani is, of course, of the greatest use, but, as has been 



* 'The Conchologist,' vol. ii. p. lOJ ; ' Journal of Malacology,' vol. v. 

 p. 22, pi. ii. figs. 6, 7. 



