12 TAYLOR : DISCOVKRY OK HVGROMIA UMBROSA. 



area, which its present known range incompletely encircles, as it 

 embraces the elevated mountain plateaus of Bavaria, Posen,Thuringia, 

 Saxony, Silesia, Suabia, and Wurtemberg, and the Harz Mountains of 

 Central Germany. In Austro-Hungary it inhabits the entire range of 

 the Austrian Alps, and is known from Austria, Bosnia, Bohemia, 

 Carniola, Carinthia, Croatia, Galicia, Moravia, Salzburg, Styria, Tran- 

 sylvania, and the Tyrol. 



It is found throughout the montane districts of Switzerland, and is 

 recorded by Dr. Morch from the Island of Zealand, and in the present 

 communication from East Kent in Great Britain. 



Mr. Dacie hopes in the spring to revisit the precise spot, and col- 

 lect the living mollusk, so that the animal and its internal organization 

 may be adequately studied. 



It will doubtless be suggested that the species has been introduced 

 to the locality where it was found by some enthusiastic conchologist, 

 or accidentally ; but everyone who has endeavoured to introduce 

 species of moUusks into other localities, except to places where the 

 fauna is distinctly inferior in organization to the species proposed to 

 be introduced, will probably acknowledge the practical impossibility 

 of success ; and until definite and credible information of such intro- 

 duction is afforded in the present instance, I regard these shells as 

 genuine inhabitants of this country. 



I cannot but regret as unfortunate the unnecessary haste of those 

 who always regard as artificial introductions every new form found 

 within our limits, especially if previously unknown from the recent 

 geological deposits in this country which have as yet been very 

 cursorily and slightly examined. 



Note on Urocoptidae. — The groups comprised in this family vary in their 

 method of reproduction, some being oviparous, and others viviparous. Thus Eiua- 

 lodiuni ivalpoleanuiii amongst others is known to be oviparous (see Pils. Man., vol. 

 xvi., p. i.K.), whilst Brachypodella {Mychostoma) agnesiaita (C. B. Ad.), B. (Apoma) 

 cheinni/ziana (Fer. ), and gracilis (Wood)— vide Gloyne, Journal of Conchology, 

 vol. i., p. 53, B. (Liparotes) obesa (W. and M.), and siiliiralis (Wein.) — vide Clapp, 

 "Nautilus," vol. 28, p. 132 — are viviparous. It may, therefore, serve a useful 

 purpose to record the definite oviparity or otherwise of species when this can be 

 ascertained. There are in my collection the whitish calcareous eggs of the follow- 

 ing species : — Coelocentrum gigas von Marts, (oval, 3'5 X 4*5 mm.); Anoiiia solida 

 var. slriatiila (long oval, i X I "5 mm.); JMicroceramus iitexicanusVix. (round, dia- 

 meter '75 mm.) ; Urocoptis {Goiigylostoiita) lavalleana d'Orb. (round, diameter 

 I mui.j; Uroioptis {Idiosteviina) inlus/nalleata Gund. (round, diameter '9 mm.). 

 Perhaps some brother conchologists can amplify this meagre list. — Geo. C. Si'KNCE 

 {Read before the Society, Sept. 8th, 1 91 5). 



