62 PROCEEDINGS OF THE ^.CADEMY OF [Feb., 



pools on the island, as well as on Assateague. On the latter and on 

 Wallops Island we only found minute Crustacea, and no fresh-water 

 mollusks. The Chincoteague mollusca were identified by Mr. E. G. 

 Vanatta as Lymncea columella, Planorbis alabamensis and Muscu- 

 lium partumeium. XiigvOnly frog met with was Rana pipiens, 

 and these mostly greenish. Bufo americanus was abundant, and we 

 also saw a number of Chelydra serpentina, Kinosternon pensylvanicum 

 and Chrysemys pida. 



Acknowledgment is due to Mr. T. D. Keim, who assisted me in 

 making the collections. 



Mustelus canis (Mitchill). 



Abundant. Chincoteague, Assateague and AVallops. 



Raja ocellata Mitchill. 



Chincoteague and Wallops. 

 Raja eglanteria LacepMe. 



Chincoteague, Assateague and Wallops. This is the most abund- 

 ant skate. 



Acipenser sturio Linnseua. 



Chincoteague. A large one brought in. 

 Pomolobus mediocris (Mitchill). 



Chincoteague and Wallops. 

 Pomolobus pseudoharengus (Wilson). 



Chincoteague, Franklin City and Wallops. 

 Alosa sapidissima (Wilson). 



Chincoteague. Several bushels taken in the pounds. 

 Brevoortia tyrannus (Latrobe). 



Franklin City, Chincoteague and Assateague. A number were 

 infested with Lernecenicus radiatus (Le Sueur), a lernean parasite. 

 These were usually found hanging from the back and protruding 

 through holes they had bored through their host's flesh. Some 

 were found protruding from the dorsal fins, and one which had im- 

 bedded its head under its. host's tongue hung down from the chin 

 like a bifurcated barbel. Among fifty or more examples of men- 

 haden, but few were found free of this parasite, and usually several 

 were on a single fish. 



Anchovia mitchilli (Valenciennes). 



A dead example picked up on Assateague beach. 

 Fundulus majalis (Walbaum). 



Abundant at Chincoteague and Assateague. The most abundant 

 killifish in coves and salt-water bays. 



