NO. l8 MENHADEN, GENUS BREVOORTIA — HILDEBRAND 



13 



iyrannus 



Head moderately large, its length 30 

 to 33 percent, and its depth 27.5 to 

 31 percent of standard length. 



Maxillary long, reaching well beyond 

 vertical from posterior margin of 

 pupil, 13.5 to 16.5 percent of stand- 

 ard length. 



Mandible moderately long, 16.5 to 19 

 percent of standard length. 



Eye moderately large, 6.2 to 6.9 per- 

 cent of standard length. 



Origin of dorsal generally a little 

 nearer base of caudal than margin 

 of snout. 



Pectoral fin moderately long, failing 

 to reach base of ventral by less than 

 diameter of eye, 3 or 4 vertical rows 

 of scales between its tip and base of 

 ventral, its length 19 to 20 percent 

 of standard length, 1.6 to 1.75 in 

 head. 



Axillary process of pectoral variable 

 in length, generally about two-thirds 

 length of fin, 10 to 11. 5 percent of 

 standard length. 



Caudal fin moderately long, the lower 

 lobe about as long as head, 29 to 34 

 percent of standard length. 



Dorsal fin moderately elevated an- 

 teriorly, the longest rays greatly 

 exceeding the depth of the caudal 

 peduncle. 



brevicattdata 

 Head small, its length 29 to 30 percent, 



and its depth 26 to 27.5 percent of 



standard length. 

 Maxillary shorter, reaching vertical 



from posterior margin of pupil, 12 to 



13 percent of standard length. 



Mandible shorter, 15.5 to 16 percent of 

 standard length. 



Eye small, 5.4 to 6.0 percent of stand- 

 ard length. 



Origin of dorsal somewhat nearer mar- 

 gin of snout than base of caudal. 



Pectoral fin very short, failing to reach 

 base of ventral by a distance greater 

 than diameter of eye, 5 to 7 vertical 

 rows of scales between its tip and 

 base of ventral, its length 13.5 to 16 

 percent of standard length, 1.8 to 2.2 

 in head. 



Axillary process of pectoral very short 

 and broad, only about half the length 

 of fin, 8.0 to 9.4 percent of standard 

 length. 



Caudal fin shorter, the lower lobe 

 much shorter than head, 22 to 25 

 percent of standard length. 



Dorsal fin little elevated anteriorly, 

 the longest rays about equal to the 

 depth of the caudal peduncle. 



Range. — Known only from Noank, Conn. 



BREVOORTIA PATRONUS Goode 



Large-scale Gulf Menhaden 

 Figure 3 



Brevoortia patronus Goode, 1878b, p. 39, Brazos Santiago, Tex. (description 

 based on Brazos Santiago specimens (U.S.N.M. No. 892) ; diagnosis and 

 table of measurements based in part on specimens from the "Mouth of the 

 Rio Grande" (U.S.N.M. No. 891), which are B. gunteri n. sp.) ; 1879, p. 26, 

 pi. 5 (diagnosis and description copied from original account) ; 1884, p. 575, 

 pi. 206 (common names; movements; parasites; reproduction; food). — 

 Jordan, Evermann, and Clark, 1930, p. 44 (range; synonymy). 



Brevoortia tyrannus patronus Jordan and Evermann, 1896, p. 434 (compared 

 with Atlantic menhaden; range and abundance; synonymy). — Evermann 



