96 THE NAUTILUS. 



do not pay more attention to the European forms of the circutnpolar 

 types. Judging from the names, one would suppose that the Ameri- 

 can variations ot' L. paiustris, etc., were quite different from those 

 found in Europe, If this is the case, it is a fact of much interest; 

 but it has never been demonstrated by comparisons, nor is it sug- 

 gested by the figures in Mr. Baker's work. The variety esptu/sa 

 llald., of L. prtlustns, is to lie compared with the European var. 

 couifnrmts Bourg., which on the face of things appears to be the 

 same ; while other American palnslris seem referable to varieties 

 eloiigata Moquin (Baker, PI. xxxii, first three shells of fig. 1), and 

 perhaps conica Jeffreys. In fact, it is not yet clear that there is any 

 American variation of L. patustris which cannot be duplicated in 

 Europe. With regard lo L. sUigalis, it is well said that the typical 

 European form is not that found in America, but it is apparently not 

 true that the American form (upprcssa, Say) is absent from Europe. 

 I have seen plenty of European specimens which could not, I think, 

 be distinguished from the American ones; such appear to pertain to 

 the variety fruyilis (Linne) and its allies. Some one should 

 minutely examine the anatomy of these forms, to see whether it is 

 not possible that there are two species, viz.: (1 ) L. stagnalis ( L.), 

 European; (2) L. fragilis (L.), Europe and America, including 



cssti. Sav, raphidia Bourgt., vulgaris Westerlund, etc. 

 Linnisea Woodriiffi Baker, appears from the figures to be the 

 European L. pet'eya, in which case it must have been introduced. 



T. D. A. CoCKEKELL. 



THE death is announced of the Jesuit Father Prof. P. HF.UDE, 

 on January 3d, at Zikavei, near Shanghai, at the age of 06 years. 



At the NovEMr.KR MEETING of the SECTION ox CONCIIOI.OGT, 

 Brooklyn Institute of Arts and Sciences, Mr. S. C. Wheat exhibited 

 two specimens of fresh water mollusca taken from a stream in New 

 Jersey, \\ hich, upon careful inspection by Dr. R. Ellsworth Call, 

 were pronounced to be hybrids between Margaritana marr/inata and 

 Aiiodnntii untJulata. The specimens aroused much interest, as such 

 hybrids are very rare. A specimen of Anodonta implicata seven 

 inches in length taken from Prospect Park Lake was also shown. 

 These specimens were added to the collection in the Children's Mu 

 seiim. F. II. AMES, Sue. 



Description dr Diofl/isques nonreaux provennnt. de fife Obi ( Moluques). 

 In LH Naturaliste, Nov.. 11)02, p. 247, Mr. Dautzenberg has described 

 and figured a series of Helices and two Leptopomas. Of the former 

 //. (Alftersin) omissn seems to he- identical with ff.(Albefsia) obiensis 

 Mart. (Archiv f. Naturg. 1MO'., pi. .'5). //. (I'upnina) ob'ensis 

 Dautz. is ap|iarently //. (P.) p'Vsctts Mts. //. (Papuinn] groulti is 

 a fine, pyramidal, carinate species of the pileolus group, somewhat 

 similar to P. rynchostoma Pfr //. A. P. 



