THE NAUTILUS. 35 



Nov., 1897, supplements the preceding. " Hygromia urnbrosa Partsch 

 (from Ightham fissure) is by far the most noteworthy form, since it 

 has not been met with previously on this side of the channel. Its 

 present range is southern Germany, Bohemia, Switzerland, etc., and 

 according to Morch, near Holstenburg in Denmark." A peculiar 

 form of Carycldum minimum also occurs. The exact age of this 

 deposit is somewhat doubtful, but it is certainly Pleistocene. " Taken 

 altogether, the shells from our cave deposits are decidedly larger 

 than recent examples, and there can be no doubt that there has been 

 a marked diminution in the size of our indigenous mollusca, and 

 probably also in their numbers since Pleistocene times." In Amer- 

 ica the only extensive Post-Pliocene deposit, the Loess, shows an 

 opposite tendency, and the few Pleistocene caves, such as the fissure 

 at Port Kennedy, which proved to be rich in sloth, sabre-tooth, pec- 

 cary and other mammalian remains, have so far yielded no mollusca. 



M. le Dr. JOUSSEAME describes an alleged new genus and species 

 of Nueulidce as Diabolica diabolica (Le Naturaliste, Nov., 1897, p. 

 265). Comment is superfluous. 



VERZEICHNISS DER AUF DEN PHILIPPINEN LEBENDEN LAND 

 MOLLUSKEN, by Dr. O. von MollendorfF. (Abhandl. naturforsch 

 Gesellsch.). In this timely list the multitudinous new species added 

 to the Philippine fauna in recent years by Hidalgo and especially von 

 Molleudorff are intercalated with those made known by Semper and 

 the older authors, the whole classified, with references to descriptions 

 and localities ; forming an indispensible handbook to the Philippine 

 fauna. One thousand and seventy-nine species is the grand total of 

 land shells. As an instance of the additions to this fauna made by 

 von Molleudorff and his collaborator Quadras, we may mention the 

 section Diaphora of Ennea, in which 32 of the 35 known species 

 were described by him. This is an extreme case, but many genera 

 have been more than doubled in species by von Mollendorff's 

 researches. A very large number of the new species were des- 

 cribed in the " Nachrichtsblatt " without figures; and it is to be 

 hoped that the author's intention of figuring these forms will be 

 fulfilled. We understand that another volume of Sernper's great 

 work will be devoted to this purpose. 



MR. W. Moss has been investigating the genitalia of the English 

 Zonitoides species, and has given a preliminary notice of some 

 interesting results before the (Brit.) Conch. Soc., May 12, 1897. 

 He announces the finding of a channel-shaped calcareous organ with 



