240 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



copus Jordan & Bray ton, Bull. IT. S. Nat Mus, XII, 41, is, I think, 

 identical with ^^ Photogenis^^ eurystomus. The teeth of genuine examples 

 of the latter species are always 1, 4-4, 1. Those with the teeth 2, 4, all 

 belong to Luxilus zonistius. 



One of the tyi)ical examples of this species is numbered 23452 in the 

 U. S. National Museum. 



8. LUCANIA GOODEI, sp. UOV. 



Allied to Lucaniaparva ( Gyprinodon parvus, Baird and Girard). Body 

 elliptical, rather elongate, the back considerably elevated to a point 

 just in front of the origin of the dorsal fin ; the caudal peduncle rather 

 deep and compressed ; greatest depth contained 4 to 4J times in length 

 to base of caudal. Head short, comparatively narrow, and bluntly 

 pointed, its length contained 3| to 4^ times in length of body. Mouth 

 smaU, terminal, both jaws with rather large conical canine-like teeth, 

 apparently in a single series. Eye large, near the middle of the side of 

 the head, its diameter contained 2 J to 2f times in the length of the head, 

 about equal to the width of the interorbital space. Scales large, their 

 exposed surfaces higher than long, in about 30 (29 to 32) longitudinal 

 and 7 vertical series. Humeral scale like the others. 



Fins large, esj^ecially in the males. Dorsal rays 9. Anal 9. Origin 

 of dorsal about midway between snout and base of caudal, conspicu- 

 ously in advance of anal. Height of dorsal fin in the males two-thirds 

 the length of the head, about equal to the length of the base of the fin. 

 In females a little lower. Anal fin similar and nearly as high and long, 

 beginning nearly under the middle of the dorsal. Caudal moderate 

 subtruncate. Ventrals long ; in the males reaching the front of the anal; 

 in the females reaching the vent. Pectorals reaching past front of ven- 

 trals in both sexes. 



Color olivaceous, the scales with dark edgings. A very distinct black 

 band in both sexes running through eye and snout straight to the base 

 of the caudal, where it ends in a round black spot. This band is about 

 as wide as a series of scales, although developed on parts of two series. 

 A conspicuous black band in both sexes along the lower edge of the 

 caudal peduncle, from the root of the caudal to the vent, dividing and 

 passing on each side of the anal fin. Fins in the female jjlain. In the 

 male basal half of dorsal and anal jet black, outer half pale with a black 

 edge. Pectorals and especially ventrals also dark-edged. Caudal fin 

 faintly mottled. Vertical tins with more or less red in life {Jide Goode). 



The typical specimens, about 30 in number, ranging from f to 1^ inches 

 in length, were obtained in Arlington River, Florida, a tributary of the 

 St. John's, by Prof. G. Brown Goode, in company with Girardimis for- 

 mosus, Zygonectes ( Gamhusia) arlingtonensis. These are numbered 23505 

 on the register of the U. S. National Museum. The species is weU sep- 

 arated from its congeners venusta and ])<^^'va by its black lateral band 

 and colored fins. From the former the fewer dorsal rays also distin- 

 guish it. 



