1911.] NATURAL SCIENCES OF PHILADELPHIA. 5 



permit to collect fishes in Delaware and for enabling me to secure 

 some valuable collections from Wilmington. I am also under obliga- 

 tions in many ways, either for notes or contributions of specimens, 

 to Dr. R. J. Phillips, Mr. S. N. Rhoads, Mr. T. D. Keim, Mr. C. J. 

 Pennock, Dr. Herman Burgin, Mr. H. L. Mather, Jr., Mr. B. W. Grif- 

 fiths, and others. A number of the more common market fishes have 

 also been examined, though none of these were preserved. 



Myxine glutinosa Linnsus. 



Only known from off-shore by Smith and Kendall's record. 1 

 Petromyzon marinus Linnaeus. "Lamprey." 



I found a small one in the White Clay Creek near Thompson, April 

 9, 1910, which was not preserved. Mostly taken in the spring, in 

 tidal waters and ascending streams with direct communication to 

 the sea. Mr. Poole says they formerly ascended Mill Creek near 

 Wilmington. 



Eulamia milberti (Mtiller and Henle). "Shark." 



One small example taken at Dewey Beach, Sussex County, October 

 12, 1910. 



Sphyma zygaena (Linnseus). "Hammer-head Shark." 



Although I have no examples, it undoubtedly occurs about Reho- 

 both, where Mr. Charles Jaeger says he saw a number of small examples, 

 the largest not over 3 feet in length, in September' several years ago. 



8quatina squatina (Linnaeus). "Lizard Fish." 



Greatly detested by the fishermen, who say it has been common at 

 times off Dewey Beach, many having been taken in the pound. Sev- 

 eral years ago they were also said to have been very abundant south- 

 ward, as at Ocean City and Chincoteague, sometimes greatly annoying 

 the sturgeon fishermen by being gilled in their nets. A stuffed example 

 in the Academy was evidently secured at Lewes some years ago. 2 



fitanta birostris (Walbaum). 



Twice described 3 from the entrance to Delaware Ba} r . No examples 

 from Delaware in the Academy. 



I have a number of egg-cases, empty, collected recently on Dewey 

 and Rehoboth Beaches, which probably belong to Raja ocellata and 

 R. eglanteria, both of which are said to be abundant in the region. 



1 Rep. U. S. F. Com., 1896 (1898), p. 109. 



2 Squatina dumerili in Proc. Acad. Nat. Sci. Phila., 1875, p. 510, from A. 

 Purvis, in list of donations to the Museum. 



3 Cephalopterus vampyrus Mitchill, Ann. Lye. Nat. Hist. N . Y., I, 1824, p. 23, 

 PI. 2, fig. 1. Cephaloptera giorna Le Sueur, Journ. Acad. Nat. Sci. Phila., IV, 

 1824, p. 115, PI. 10, figs. 1-4. 



