120 REPORT OF NEW JERSEY STATE MUSEUM. 
2. Further Notes on New Jersey Fishes. 
My observations on the fishes of the State during the past 
season, or since my supplement in last year’s report was prepared, 
are all recorded in this paper.. In a recent number of Science, 
the interesting discovery of “Gambusia in New Jersey” is noted. 
This is a small fish of interest chiefly to mosquito investigators 
for its destruction of the larve of the malarial mosquito, Ano- 
pheles. Other rare and interesting species have been found in 
New Jersey waters and examined. In Professor J. B. Smith’s 
Rep. N. J. Agr. Exper. Sta., 1904, I have previously neglected 
to call attention to Mr. William P. Seal’s interesting notes on the 
mosquito-devouring fishes. Dr. W. C. Kendall, of the Bureau 
of Fisheries, Washington, D. C., has kindly furnished me with 
some interesting notes. 
Family PETROMYZONID. 
Petromyzon marinus Linnzus. 
Lamprey. 
Reported to occur in Cedar Swamp Creek at times about 
Petersburg, though in tide-water. 
Mr. J. B. Vanderveer reports that in his experience the lamprey 
is quite bold when spawning, and resists intrusion, though harm- 
less. ‘Their bodies appeared in contact when. the ova was ex- 
truded. He found them in the Delaware about Trenton in early 
summer, though small, and ascending or swimming with the 
common eel, Anguilla. On one occasion three were seen on a 
single shad, of which one was fastened on each gill-opening and 
the other at the vent. 
A small example in the Ammocetes stage was taken in Ed- 
ward’s Run, tributary of Mantua Creek, in Gloucester county, 
November 3d, 1907, by B. W. Griffiths and H. W. Fowler. 
