36 THE NAUTILUS. 



and Area reticulata are figured. The list of non-marine forms com- 

 prises 147 species and numerous varieties, the following being de- 

 scribed as new: Cerion rhyssum, Cepolis (Hemitrochus) exumana, C. 

 (ff.) agassizi, (7. (Plagioptycha) gregoriana, C. (P.) inaguana, C. 

 (P.) pharcida, and a number of varieties. All are figured. An in- 

 teresting discussion of the relationships and history of the fauna pre- 

 cedes the descriptions. 



CHECK LIST OF THE MOLLUSCA OF NEW YORK By Elizabeth 

 J. Letson. (Bull. 88 N. Y. State Museum, 1905). 1 Miss Letson has 

 brought together references to the New York mollusca from all 

 sources from the time of DeKay (1843) to the present time ; so that 

 her check list is a bibliography as well. The marine fauna is not a 

 rich one. Of non-marine forms, 243 species and some varieties are 

 recorded ; and though a few given on the authority of old records 

 will probably be deleted, yet the number of species remaining is re- 

 markably large for a Northern State. The work will be useful to all 

 interested in the species of our northern and middle States. H. A. P. 



BEMERKUNGEN UEBER DIE CHITONEN-SAMMLUNG IM ZOOLOG- 

 ISCHEN MUSEUM zu LEIDEN Von Dr. H. F. Nierstrasz. Notes 

 Leiden Mus., vol. xxv. Dr. Nierstrasz is known as a careful and 

 competent author on Chitons by his report on those of the Siboga 

 Expedition. In the present paper he describes as new Callistochiton 

 leidensis from Santa Elena and Callistochiton porosus from Rio Jan- 

 eiro, and gives interesting notes on various species of Liolophura, 

 Onitho chiton and other genera. Full details are given of Dr. 

 Nierstrasz's genus Squamipleura, from a series of 40 examples from 

 near Timor. It stands between Acanthopleura and Liolophttra, but 

 nearer the latter. A few locality records, on the authority of 

 specimens in the Leiden Museum (no collector mentioned) are un- 

 doubtedly erroneous. Ischnochiton magdalensis surely never came 

 from Martinique, nor 1. punctulatissimus from the Gulf of Mexico. 

 The record of Nuttallina scabra from Chili is almost as doubtful; 

 and only the most definite data would justify us in adding Acan- 

 thopleura granulata to the faunas of Magellan Strait and the Cape of 

 Good Hope H. A. P. 



1 Pp. 112, New York State Educational Department, Albany. 



