664 Bulletin 47, United States National Museum. 



nearly connecting the two spots, the band forking before the caudal spot 

 and sending a branch above and below it ; a dark streak from base of 

 ventrals along each side of anal to base of caudal ; a dark streak from 

 eye covering lower jaw ; another faint streak from eye to lateral spot, 

 forking to form an ocellus, as is the case with the caudal spot. Length f to 

 1 inch. Swamps of Florida ; 8 specimens now known ; 2 obtained by R. 

 Edward Earll in Indian River, the original types of the species ; 2 obtained 

 by Mann and Davison in western Florida, and described by Professor Hay 

 as Zygonectes mannii ; the others obtained in the Santa F6 River and its 

 tributaries by Mr. A. J. Woolman, who alone has seen the male. In form 

 and color, the species resembles the genus Eivulus. It apparently differs 

 in dentition and seems on the whole nearer to Lucania. It can not be an 

 ally of Heterandria. The largest specimens are barely an inch in length, 

 so that the species may, in the words of Dr. Hay, " contend with Heterandria 

 formosa for the honor of being the smallest known vertebrate." (o///mr6f, 

 eyed, in allusion to the caudal ocellus of the female.) 



Heterandria ommata, JORDAN, Proc. U. S. Nat. Mus., 1884, 323, Indian River, Florida. (Type, 

 No. 25331(2). Coll. B. Edward Earll); WOOLMAN, Bull. U. S. Fish Comm., x, 1890, 302. 



Zygonectes mannii, HAY, Proc. U. S. Nat. Mus., 1885, 555, Yellow "Water River, Florida. 

 (Coll. H. T. Mann.) 



976. LUCANIA GOODEI, Jordan. 



Head 4; depth 4i; eye 2| to 2f. D.9; A. 9; scales 29 to 32-7. Body 

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

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

 and compressed. Head short, comparatively narrow, and bluntly pointed; 

 mouth small, 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, about equal to interorbital space. Scales large ; 

 humeral scale like the others. Fins large, especially in the males; 

 origin of dorsal about midway between snout and base of caudal, con- 

 spicuously in advance of anal j height of dorsal fin in the males f length 

 of head, about equal to the length of the base of the fin; 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 ventrals 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 about as wide as 

 a series of scales, although developed on parts of 2 series ; a conspicuous 

 black band in both sexes along lower edge of the caudal peduncle, from 

 root of the caudal to vent, dividing and passing on each side of the anal 

 fin ; fins in the female plain ; in the male, basal half of dorsal and anal jet 

 black, outer half pale with a black edge ; pectorals, and especially ven- 

 trals, also dark-edged; caudal fin faintly mottled; vertical fins with 

 more or less red in life. Length 1 inches. Rivers of the Everglade 

 region ; locally abundant. Known from the Alligator, Arlington, Peace, 



