MOLLUSCA. 257 
bot. Gesellsch. Wien, xv. pi. 8 ; they were named and described by him 
some years ago : — 
Hydrohia secmaniy Mexico ; consociclla, Dalmatia ; corriyaia [should be 
corrected to corrected or corri(fmdd\^ North America ; plcncrij Real Llejosj 
ffimnii, Tasmania j declinata^ Dalmatia ; reevii and spelcea^ New Zealand. 
Hydrohia californica, sp. n., Tryon, Am. Journ. Conch, i. p. 221, pi. 22. 
fig. 11, California, brackish water j H. glahra^ sp. n., Tryon, /. c. p. 222, 
fig. 12, Bolivia. 
Amnicola schrokingeri, Massachusetts ; exilis^ Greece ; Jlorida7m, Florida ; 
hotschyi,Vox8m) orientalisj [-s?s], Tasmania; moiitencgi'ina, 
Montenegro ; tachomsis,hom the sources of the river Tajo in Spain [in Latin 
Tagus, therefore better tagana, like r1ienana,padaita]. Figured by Frauenfeld, 
Verhandl. zool.-bot. Gesellsch. Wien, xv. pi. 10. 
Airmicola tm'hiniformisy sp. n., Tryon, Am. Journ. Conch, i. p. 219, pi. 22, 
fig. 5, California ; A. similis, sp. n., Tryon, 1. c. fig. 6, Manilla. 
Amnicola lustt'ica (Say) is probably the immature form of Valvata pupoidca 
(Gould), Morse, Journ. Forth Soc. Nat. Hist. 18G4, p. 46. — Frauenfeld de- 
fends this name as belonging to a real shell against Hagen’s supposition that 
it is founded on the tube of a Helicopsyche (Phryganid). Verhandl. zool.- 
bot. Gesellsch. Wien, xv. p. 204. 
Lithoglyphus notatus, Dalmatia ; huschn, La Plata ; crassiusculaf Opara ; 
cwmwytV, California ; Kurdistan ; Fiume ; Opara ; 
pannonicusj Hungary ; and pygmcBus, Croatia. Figured by Frauenfeld, 1. c. 
pis. 10 fell. 
TaludincUa lata, figured by Frauenfeld,/. c. pi. 11, Hungary. 
Paladilhia, g. n., Bourguignat (Monographic du nouveau genre Fran 9 ais 
Paladilhia, Paris, Janvier 1866, 8vo, with one plate ; and also in Rev. Zool. 
1865, pp. 120-123, pi. 13). Known only from the shell, which is similar to 
that of Hydrohia, but distinguished by a deep notch in the outer lip close to 
its upper insertion, very similar to that in Mangelia. Shell vitreous, thin. 
As neither the operculum nor the soft parts are known, the systematic po- 
sition of this genus is far from being ascertained. Three species, found in the 
alluvial soil of the rivers Lez and Mosson, near Montpellier, are named by 
Bourguignat P. pleurotoma, moitessieri, and gervaisiana i figs. 1-8, 9-13, 
14-18. 
Gahhia, g. n., Tryon, Am. Journ. Conch, i. p. 220, pi. 22. fig. 7. Shell 
Amnicola. Operculum paucispiral, calcareous. Station freshwater. This 
is the whole of the description of the new genus. G. australis, sp. n., Tryon, 
New South Wales. 
Po7Jiatiopsis mter77tedia, sp. n., Tryon, /. c. pi. 22. fig. 8, Oregon. 
So7natogyrus a7i7'eus pa7'vuhis, sp. n., Tryon, 1. c. pp. 220 & 221, pi. 22. 
figs. 9 & 10, Tennessee. 
Paludinid^e. 
Dr. von Frauenfeld describes the following new species in Proc. Zool. Soc. 
1866, pp. 668 & 669 : — Vivipara sclateri from Japan ; V. siamc7isis, V. helici- 
fo7'mis from Central Africa; V. jeffreysU, capillata, and 7'ohc7'tsoni from Lake 
Nyassa; F. from West Africa. The same diagnoses are published 
in Verh. zool.-bot. Gesellsch. Wien, xv. pp. 631-633, pi. 22. 
1865. [vor.. II.] s 
