422 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



bluish purple, brightest in the axil ; its outer surface is blackish, though 

 completely covered with a pearly sheen. 



The ventrals, lirst dorsal, and first anal, when not erected, are com- 

 pletely hidden in grooves. The second dorsal and second anal are not 

 so hidden. The pectorals are flat, closely clinging- to the sides when 

 not in motion ; their base received into a depression in the side of the 

 fish. 



The lanceolate scales may be seen through the epidermis, giving a 

 reticulated appearance to sides of the fish. 



The second dorsal and the second analhavebroad, flattened, ultimate 

 rays, which adhere closely to the body of the fish. 



Measurements. 



Current number of specimen 



Locality NeTV Bedford, 



Mass., July, 

 25, 1875. 



B. 



Wood's Foil, 

 Mass., 1875. 



Inches. 



Extreme length 



Lenjith to end of middle caudal raya. 

 Body: 



Greatest heicht. 



Height at ventrals 



Head: 



Greatest length 



Greatest width 



Width of interorbital area 



Length of snout 



Length of bill 



Length of operculum 



Length of upper Jaw to commissure of Jaws 



Length of lower Jaw to commissure of jaws . 



Distance from si. out to orbit 



Diameter of orbit 



Dorsal : 



Distance from snout 



Length of base 



Greatest height 



Height at first spine 



Height at s(!Cond spine 



lieigbt at third spine 



Height at fourth spine 



Heiglit at fifth spine , 



Height at sixth spine 



Height at seventh spine 



Height at eighlh spiue 



Height at ninth spine 



Height at tenth spine 



Height at eleventh spine 



Height at twelfth spine 



Heiglit at thirteenth spine 



Height at fourteenth spine , 



Anal: 



Distance from snout 



Length of base. 



Height at first spine 



Height at second spine 



Height at third spine 



Height at fourth spine 



Height at fifth spine 



Height at sixth spine , 



Height at seventh spine 



lli'iglit at eighth spine 



Height at ninth spine 



Height at tenth spine 



Height at eleventh spine 



Height of fin above sheath 



*To vertical from upper caudal lobe. J Over vent, 



t At origin of dorsal. § Beyond tip of lower jaw. 



II "Length of anal groove." 



Inches. 



89. 00* 

 8LG0 



ll.SOt 

 9.00t 



19.50 

 12. 25§ 



22.75 

 10.50 



2.00 



28. 00 

 37.00 

 12. 25 



54.00 

 10. 2511 



7.25 



