622 U. S. BUREAU OF FISHERIES 
in a suburb of Chicago. This introduction was made from southern Illinois. 
Possibly a cold-resisting strain of Gambusia has been found, and it may be 
possible to use Gambusia in northern waters. In any event, the matter seems 
worthy of further study. 
Doctor Hrprsranp. I would like to add just a few words on some 
other work we are doing at Beaufort. Mr. Towers will present a 
paper dealing with the pigfish. We have followed the development 
of the egg and the young of the large anchovy, and we have taken 
up a third species of which we have the egg, but are not certain we 
have the egg linked with the right fish. We think it is the young 
sheepshead. 
When we went to Beaufort we finished quite a bit of work already 
on hand. We had a collection of fish from Mississippi and from the 
Gulf of Venezuela. I had prepared some notes on Gambusia and 
have just completed the paper. We shall get all of these things out 
of the way and will then confine ourselves to the local fauna. No 
extensive work has been done at the station heretofore in the winter 
time, but we have undertaken some investigation to find out what 
lives in the deeper waters there in the winter. 
We got many of the younger food fishes there until we had some 
very cold weather during the holiday season. Thereafter we got 
practically nothing, showing that these fish at least leave the harbor 
in the winter. 
Doctor Girpert. Do you remember when the Gambusia was taken 
to the Hawaiian Islands? That was very successful. 
Doctor Hitprsranp. Yes; I understand it was. It has been intro- 
duced since in the Philippine Islands and has found its way to south- 
ern China and Japan, Italy, and Spain. A shipment was sent to the 
West Indies recently. 
Doctor Ricu. Was a shipment sent to Palestine? 
Doctor Hiztprpranp. Yes. It got across successfully, but the fish 
are not doing well. They have too many enemies. They still have a 
brood stock, but it isn’t multiplying. 
Mr. Hicerns. The proposal for extending the work on mosquito- 
eating fish to the Northern States should properly be brought before 
the advisory committee when it considers plans for the future. I 
want to ask now about the success of your towing operations for eggs 
and larve of fishes in both inside and outside waters. 
Doctor Hriprpranp. That work has not been carried on long 
enough to have yielded results. The weather has been so bad lately 
that very few trips have been made. We have had a season of rough 
weather, with high winds and it has been almost impossible to do 
anything. I think only two trips had been made when I left Beau- 
fort, but the work is being continued. 
EMBRYOLOGY OF THE PIGFISH 
By Irvine L. ToOwErs 
As is probably already well known, the pigfish (Orthopristis chrysopterus) is 
one of the important food fishes of the Beaufort region. A study of its feeding 
habits and life history, especially during the early stages of its life, has been 
commenced with a view to obtaining further information concerning the type 
of environment best suited to its needs, the rate of growth, the character of 
its food, and also the outlines of its embryology. 

SRP S 
