68 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



The length of the middle caudal rays (.16§) is contained 6 times in 

 the total length. 



The caudal is slightly forked, almost truncate when expanded. 



The pectoral is composed of ten rays. Its distance from the snout 

 (.34) is a little less than twice its length (.18). It extends to the mid- 

 dle of the interval between the two dorsals. The length of the post-pec- 

 toral plate (.14) equals twice that of the upper jaw, and its width (.04) 

 equals the length of the antecedent anal spine. 



The ventral consists of one spine and one ray. Its distance from 

 the snout (.45) equals 4J times the length of the lower jaw. The 

 spine extends beyond the end of the pubic bones, reaching almost or 

 quite to the vent. Its length (.19) exceeds that of the pectoral (.18). 

 It is very strongly serrated on its outer and finely on its inner margin. 

 The origin of the ventral is slightly in advance of the perpendicular let 

 fall fi'om the second dorsal spine. 



EacUal formula: B. Ill; D. II, I, 10-12; A. I, 8-9; 0, + 12 + ; P. 

 10 ; V. I, 1. 



Color. — Dark bands cross the body just as in G. pungitius, which it 

 strongly resembles. The ground-color of the body in the alcoholic speci- 

 mens is almost flesh-color ; the major part of the head is silvery, as are 

 the breast and the beUy. 



Table of Measurements. 



Current number of specimen. 

 Locality 



22,492 a. 

 Schoodic Lakes, Me. 



Millime- 

 tres. 



lOOthsof 

 length. 



Extreme length 



Length to origin of middle caudal rays. 

 Body: 



Greatest height 



Greatest width 



Height at ve.ntrals 



Least height of tail 



Length of caudal peduncle 



Head: 



Greatest length 



Greatest width 



Width of interorbital area 



Length of snout 



Length of operculum 



Length of upper jaw 



Length of mandible _. 



Distance from snout to orbit 



Diameter of orbit 



Dorsal (spinous) : 



Distance from snout 



Length of first spine 



Length of second spine 



Dorsal (soft) : 



Length of antecedent spine 



Length of first ray , 



Anal: 



Distance from snout 



Length of base 



Length of first spine 



Length of first ray , 



Length of longest ray 



Caudal : 



Length of middle rays 



21 

 11 

 21 

 4 

 13 



31 

 12 



7 



7 

 10 



8 

 11 



37 

 12 

 12 



5 

 12 



66 

 18 

 4 

 12 

 12 



m 



