HISTORY OF THE AMERICAN MENHADEN. 

 Table of measurements — Continued. 



31 



Current nnmber of specimen. 

 Locality 



Caudal : 



Lenjith of middle rays 



Length of external rays, superior, 

 inferior. . 

 Pectoral : 



Distance from snout 



Di.stance of tip from snout 



Louftth 



Ventral : 



Distance from snout 



Length 



Dorsal 



Anal 



Number of scales in lateral lino 



Number of transverse rows 



1,709. 

 Paraguay. 



Millim. lOOths. 



6i 

 24+ 

 20 



32 

 50 

 18 



51 J 



H 



A. 



M. C. Z. 

 Ilio Grande. 



Millim. lOOths 



IL17 



L20 



49 



20 



M. C. Z. 

 Kio Grande. 



Millim. lOOths 



IL17 



L20 



49 



20 



Aver- 

 age. 



lOOthb. 



6 

 25 

 27 



30} 



48 



ni 



49i 



"Approximately. 



8. — Size and rate of growth. 

 Length and weight. 



43. The largest specimen ou record is represented by a plaster cast 

 in the National Museum, which is 20 inches in length. The average size 

 of the iish upon the coast of Connecticut and Massachusetts is not far 

 from 12 to 15 inches. The United States Menhaden Oil and Guano 

 Association, in estimating the number of fish in a certain bulk, allow 22 

 cubic inches to each fish. The relation between length and weight is 

 indicated in the following measurements, made at Noank, Conn., in 1875. 

 These fish were all members of the same school. 



Variations in the schools. 



44. The table given in the preceding paragraph indicates a very 

 decided uniformity in the size of the individuals making up the same 

 school. I have observed this uniformity in many schools, though I 

 have not often measured many individuals from the same school. This 



