264 
BULLETIN OF THE BUREAU OF FISHERIES 
worth $76,253. In New Jersey, during 1921, it ranked second in quantity and third in value, the 
catch amounting to 4,115,552 pounds, worth $200,046. 
The usual size of market fish in the Chesapeake and along the Atlantic coast is from Jd* to 2 
pounds. The species attains a maximum weight of 4 pounds. The following weights were obtained 
from Chesapeake Bay fish: Four and three-fourths inches, 0.9 ounces; 5 inches, 1.1 ounces; 5J4 
inches, 1.2 ounces; 5 % inches, 1.4 ounces; 6 inches, 1.6 ounces; 6J4 inches, 2 ounces; 9 inches, 
6.7 ounces; 13J4 inches, 1 pound 2 ounces. 
Habitat. — Maine to South Carolina; common from Virginia to Cape Cod. 
Chesapeake localities. — (a) Previous records: Southern part of Chesapeake Bay (Uhler and 
Lugger, 1876) and Cape Charles city. ( b ) Specimens in collection: Lower York River, Cape 
Charles, Buckroe Beach, Ocean View, and Lynnhaven Roads, Va. 
145. Stenotomus aculeatus (Cuvier and Valenciennes). Southern scup; Pinfish. 
Chrysophrys aculeatus Cuvier and Valenciennes, Hist. Nat. Poiss., VI, 1830, p. 137; Charleston, S. C. 
Stenotomus aculeatus Jordan and Evermann, 1896-1900, p. 1346, Pi. CCXII, fig. 545. 
Head 3.3 to 3.4; depth 2.2 to 2.45; eye 3 to 3.3 in head; snout 2.55 to 2.8; interorbital 3.1 to 
3.5; maxillary 3.1 to 3.15; caudal peduncle 2.8 to 2.95; fourth dorsal spine, 1.55 to 1.9; pectoral fin 
3.35 to 3.9 in length; D. XII, 12; A. Ill, 11; scales 50 or 51. 
Three specimens in the Chesapeake Bay collection, respectively 115, 125, and 150 millimeters 
(4F£, 5, and 6 inches) in length, appear to be referable to this species. Comparing specimens of 
like size, they differ from S. chrysops in having a more slender body and caudal peduncle, slightly 
larger eye, broader interorbital, and lower dorsal spines. The second spine does not reach the tip 
of the third when deflexed, whereas in S. chrysops the second spine frequently reaches beyond the 
tip of the third when deflexed. No difference in color is noticeable in preserved specimens. No 
notes on color in life were obtained, as the species was not recognized in the field. 
The following series of proportions is based on three specimens of S. chrysops of the same length 
as those of S. aculeatus at hand and will serve to show the differences mentioned: 
Head 3.3 to 3.45; depth 1.95 to 2; eye 3 to 3.3 in head; snout 2.75 to 3.05; interorbital 3.55 to 4; 
maxillary 3.05 to 3.1; caudal peduncle 2.5 to 2.6; fourth dorsal spine, 1.25 to 1.45; pectoral fins 
3.4 to 3.65 in length. 
A somewhat greater difference than is brought out by the foregoing customary proportions 
may be obtained by dividing the depth of the body by the diameter of the eye, because the propor- 
tions resulting serve to emphasize that the eye is larger and the depth smaller in S. aculeatus. Com- 
