nV C. IlEDLEY. 301 



sicula, Brazier, now iu tin; Macleay Museum, but whioli I hud, 

 when writinif the former article, been unable to study, I have 

 since opposed to Ta|)paione Canefri's figure of P. meditata, with 

 which it exactly corresponds. There can be no doubt that as 

 Nanina orhiculum, Tapparoue re-described I'razier's Tkalassia 

 annula, and I am sure that Nanina bruijni may similarly be 

 referred to Microci/st/na sappho. From an inspection of authentic 

 specimens (part of the original lot) kindly sent me by Mr. Pilsltrv, 

 1 should consider that his species Ilelicina dentoni is equivalent 

 to //. solitaria, Smith. When writing the piecediug part, I ex 

 amined the series collected by Mr. Bevan on the Douglas River, 

 from which was selected the type of P. agnocheilns, Smith ; after 

 conti'astiug this with a series of /-*. tomnsinelliana, Tapparone 

 C'anefri, from its type locality, the Fly River, I referred it to that 

 species. 



An examination of the actual t^'pe of Helix Idxoni, Brazier, 

 preserved in the collection of Mr. Hobson, enables me to rectify 

 mistakes which have arisen regarding it. I recognise in " Helix 

 Idxoni" the common or large foini of Papniiia hraziera;, occurring 

 abundantly throughout the St. Joseph River district, the veritable 

 ira;:;te;-ae being a dwarf race confined to Yule Island. Tiie classi- 

 fication of Helix hixoni as a Hadra, originated by Tapparone 

 C'anefri, was followed by Pilsbry and myself, who were unac- 

 quainted with the shell. A reference to the " Fauna Malacologica 

 della Nuova Guinea" shows that Tappai-one also never saw it. His 

 figure, presumably from an unpublished sketch forwarded by Mr. 

 Brazier, shows the shell so tilted as to hide the contour of the 

 spire, and it is besides inaccurately drawn. 



It may not be out of place to mention here that specimens in 

 the Australian Museum, collected by Mr. Brazier at Wanga, San 

 Cluistoval, Solomons, answer precisely to Papuan examples of 

 Helicina louisiadensis, Forbes. This considerably extends the 

 known range of that specie.'^. 



