PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 237 



with cross-blotches. Vertical fins faintly barred. Humeral scale large 

 and black. 



Head 3§ in length without caudal ; depth 5. 



Fin rays, D. IX-10 ; A. II, 8. 



Length of types 2 to 2i inches. 



This species differs from its congeners in its form and coloration 

 From all except P. lepidus, B. and G., it is separated by its naked head. 

 From all but P. punctulatus, Ag., by the black humeral process. 



The numerous typical examples were taken by me in the Rock Castle 

 Eiver, at Livingston, Ky. Their resemblance to Etheostoma flahellare 

 caused them to be overlooked until lately. One of these is in the U. S. 

 National Museum (No. 23456). Another has been forwarded to the 

 British Museum. 



4. Zygonectes rubrifrons, sp. nov. 



Body moderately stout, little comi)ressed, not elevated, the caudal 

 peduncle deep ; head rather long, broad between the eyes, flat above ; 

 eyes large, 3^ in head, their range horizontal ; mouth rather la;rge. 

 Teeth small, nearly even, in a narrow hand. Scales moderate. Dorsal 

 fin very short and small, placed a little behind the anal or about even 

 with it, its position in the males rather more XJOsterior ; anal short, high 

 in the males; ventrals very small; pectorals small. 



Color, males dark olivaceous, with a dark, bronze-orange spot on each 

 scale posteriorly, much as in Xenisma cafenatum. Below these sijots are 

 bright orange. Faint orange, narrow vertical bars along the lower and 

 posterior part of the body. Vertical fins with orange spots. Jaws and 

 space in front of eyes bright orange-red ; paired fins dusky. Females 

 almost uniform brassy-olivaceous, without evident spots or red markings. 



Head 3^ in length to base of caudal; depth 3|. D. 7 or 8; A. 8 or 9; 

 lat. 1. 32 ; L. transv. 11 or 12 ; B. 5 ; L. 2^ to 3 inches. 



St. Sebastian E-iver, Florida, the numerous types collected by Dr. J. 

 A. Henshall. A larger species than most in the genus, and with the 

 dorsal fin less posterior. 



Some of these in the U. S. National Museum are numbered 23450. 



5. Zygonectes henshalli, sp. nov. 



Body rather stout, deep and compressed, the profile nearly straight, 

 the back little elevated, and the caudal peduncle short and deep ; head 

 moderate; mouth rather small; jatvs each loith a series of long and rather 

 slender canine-like teeth, folloiced by a band of small teeth; the canines 

 larger in the lower jaw ; eye large ; scales rather large ; dorsal fin short 

 and high, inserted slightly behind the anal in the males, exactly oppo- 

 site it in the females ; caudal large ; anal fin larger and rather lower 

 than dorsal ; ventrals quite small ; pectorals moderate. 



General color olivaceous ; sides covered, especially posteriorly, with 

 rather large, irregularly placed orange spots, which also extend on the 



