868 NEW YORK STATE MUSEUM 



Crustacea contained in this fauna, and this very interesting 

 publi cation is presented with this report. 



Mr Sarle has spent some weeks here, engaged under my direc- 

 tion in prosecuting his studies, and the objects which he first 

 brings to public notice will be esteemed of much interest to all 

 students of these ancient and primitive crustaceans, specially 

 the proposed new genus Hughmilleria, which is intermediate 

 between the well known genera Eurypterus and Pterygotus. 

 Two years ago the writer described some of the phyllocarid 

 Crustacea from these Salina shales and one form of the strange 

 genus Pseudoniscus, so that now the entire list of crustaceans 

 from the shales is as follows : 



Emmelezoe decora Clarke 



Ceratiocaris (Limnocaris) praecedens Clarke 



Pseudoniscus roosevelti Clarke 



Eurypterus pittsfordensis Sarle 



Hughmilleria socialis Sarle 



H. socialis var. robusta Sarle 



Pterygotus monroensis Sarle 



Publications 



During the past year the publications of the department have 

 been two in number, Bulletins 49 and 52. The former contained 

 various brief paleontologic papers as follows: 



Trenton Conglomerate of Rysedorph Hill and its Fauna, by 

 Rudolf Ruedemann. 



Marcellus Limestones of Central and Western New York and 

 their Fauna, by John M. Clarke. 



Marcellus Limestones of Lancaster, Erie co., by Elvira Wood. 



New Agelaerinites, by John M. Clarke. 



Amnigenia as an Indicator of Fresh Water Deposits during 

 the Devonic of New York, Ireland and the Rhineland, by John M. 

 Clarke. 



The latter comprised papers on the following topics: 



Contact Lines of Upper Siluric Formations on the Brockport 

 and Medina Quadrangles, by J. M. Clarke, Rudolf Ruedemann 

 and D. D. Luther. 



