84 
BULLETIN OF THE BUREAU OF FISHERIES 
Cestreus regalis var. thalassinus Jordan and Eigenmann (not Holbrook), Rept., 
U. S. Commission of Fisheries, 1886, p. 366 (in part; specimens from Pensacola and 
Pass Christian only). 
? Cestreus regalis var. regalis Jordan and Eigenmann (not Bloch and Schneider) , 
loc. cit. (in part; specimens from Gulf of Mexico not being described, it is not possible 
to state with certainty whether they belong here or under noihus). 
Cynoscion nothus Welsh and Breder (in part), Bull., U. S. Bureau of Fisheries, 
Vol. XXXIX, 1924, p. 169. 
Diagnosis. — Vertebrae 25 (47). Soft anal rays with the modal number very 
decisively at 11 (92), sometimes 10 (12) or 12 (15). Total number of gill rakers in 
specimens of 71 to 266 millimeters, standard length, usually 14 (20) or 13 (19), 
frequently 15 (13), infrequently 12 (2). Enumerating separately the gill rakers on 
the two limbs of the first arch the most usual numbers are 4-1-10 or 3 + 10. The 
Figure 7 . — Cynoscion arenarius sp. nov. Sami squeteague. Drawn by Louella E. Cable from a specimen taken oil 
Galveston, Tex. 
tendency to a decrease in the number of gill rakers with an increase in the size of the 
fish is quite marked; in specimens of 31 to 70 millimeters standard length the fre- 
quency distribution is as follows: 14 (6), 15 (31), 16 (24), 17 (7), 18 (1). Caudal not 
emarginate in individuals over 300 millimeters, the middle rays being somewhat 
longer (specimens up to 315 millimeters total length examined). Least depth of 
caudal peduncle usually shorter than snout; 1.57 to 1.82 in maxillary. Dorsal soft 
rays have a modal number of 26 (59), quite commonly 25 (35) or 27 (22), rarely 24 (2) 
or 28 (1). Color pale, without well defined spots, yellowish above, silvery below, 
the centers of the scales above level of gill opening sometimes forming faint oblique 
rows of cloudy areas. The back in young cloudy, the cloudy areas tending to form 
indefinite broad cross bands. 
Description of type specimen. — Total length 290, standard length 245, greatest 
depth (60.1) 7 near tip of ventrals, 4.08 times; head (77.4 measured to posterior 
membranous edge of opercle) 3.17 in standard length. Snout (22.3 measured to 
edge of membranous border of eye) 3.47; eye (13.3 measured between membranous 
borders) 5.82; interorbital (16.5 measured on a level through middle of eye) 4.69; 
maxillary (36.2) 2.14; postorbital part of head (44.8) 1.73; least depth of caudal 
peduncle (21) 3.69; distance from posterior end of dorsal insertion to base of caudal 
on mid line (33 8) 2.29; and distance from anal opening to posterior end of insertion 
of anal (35) 2.21 in length of head. 
7 The number in parentheses in every case gives the actual length in millimeters. 
