PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 337 



Color. — Body very light yellowish browu, gray beneath, thickly spot- 

 ted with dark brown. Tlie spots on the head are smaller than those on 

 the body. Those on the under side of the body are numerous, circular, 

 the largest equalling the eye in size. On the upper part of the back 

 are many large oblong blotches of brown, interspersed with numerous 

 smaller circular spots. The markings of the dorsal and anal fins remotely 

 resemble those in Batrachus tau, subsp. a and /?. In Ko. 22337a there 

 are nine interrupted bands on the dorsal and six on the anal., two dis- 

 tinct bands on the anterior half of the caudal, and on its posterior half 

 numerous blotches of the body color or dark brown grayish. Pectorals 

 grayish at the base, yellowish brown elsewhere, and thickly blotched 

 with dark brown. 



In No. 223376 the oblique bands on the dorsal fin are obsolete, replaced 

 by irregular blotches and an irregular marginal band of black. The 

 anal exhibits obsolescent bands, perhaps eight in number. Caudal 

 dark brown with a few light blotches. Pectoral as in 22337a, but with, 

 a wide brownish black margin. 



Table of measurements. 

 Batrachus tau, subsp. pardtis. 



Cxirrent number of specimen . 

 Locality 



22337 a. 

 Pensacola, Fla. 



Pensacola, Fla. 



Millime 

 ters. 



lOOths 



of 

 length. 



lOOths 



of 

 length. 



Extreme length 



Length to origin middle caudal rays 



Head: 



Greatest length, obliquely to gill-opening... 



Greatest width 



Width of interorbital bone 



Lennth of snout (oblique) 



Length of operculum to end of largest spine 



Length of upper jaw 



Length of mandible 



Diameter of orbit 



Dorsal (spinous) : 



Distance from snout 



Length of base 



Length of first spine 



Length of second spine 



Dorsal (soft) : 



Distance from snout 



Length of base 



Anal: 



Distance from snout 



Length of base 



Caudal:'^ 



Length of middle rays 



Pectoral: 



Distance from snout 



Length (without peduncle) 



"Ventral : 



Distance from snout 



Length 



Dorsal* " 



Pectoral 

 Ventral - 



in,26 

 22 

 21 

 L2 



m 



m 



in,26 



37J 



]9i 



1» 



* Fin injured ; some of the rays are missing— HI, 26 present. 



Proc. Fat. Mus. 79 22 Iflarch 35, 1 880. 



