PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 117 



ESOCID^. 



165. Esox phaleratus, Say. (Doubtful species.) 



Described from a locality between Tokoi and St. Augustine. 



166. Esox reticulatus, Le Sueur? — Jack. 



167. Esox Ravenelii, Holbrook.* 



CYPEINODONTID^. 



168. Cyprinodon variegatus, Lac^pede. 

 St. Augustine; Lake Monroe. 



169. Jordanella floridas, gen. et sp. nov., Goode & Bean. 



Three specimens, of a remarkable type, allied to Cyprinodon^ were 

 collected in Lake Monroe, Florida, by Professor Baird (No. 18062), 

 associated with C. variegatus. The species appears to be generically 

 distinct from Cyprinodon., and the genus, for which the name Jordanella 

 is proposed, in honor of Prof. D. S. Jordan, is characterized by its long 

 dorsal and anal fins, the dorsal having IG rays, preceded by a stout, 

 thick spine, the anal I, 12 or 13, and by the position of the ventrals, 

 which are situated in advance of the dorsal, and also by the advanced 

 position of the anal, the posterior end of which is in advance of that 

 of the dorsal. In other respects it agrees with Cyprinodon. 



The species may be characterized as follows: 



Diagnosis. — Height of body contained 2^^ to 2^ times in total length 

 without caudal (2.J to 2^ times with caudal). Humeral scale behind gill- 

 opening equal to or little larger than the others. Snout as in Cyprinodon 

 variegatus. Diameter of eyes contained 3 J times in length of head, and 

 equal to | of the width of the interorbital space. Origin of dorsal mid- 

 way between end of snout and base of caudal, and above the ninth or 

 tenth scale of the lateral line, and is behind the vertical from the root 

 of the ventrals. Pectoral as long as the caudal, and § as long as the 

 head. The ventral reaches to the vent, its length equal to half that of 

 the head. The origin of the anal is under the fifth dorsal ray, and its 

 posterior ray is in advance of the last dorsal ray. Mandible about as 

 long as the eye. The sexual characters cannot be made out from the 

 series of specimens studied by us. Color olivaceous above, yellowish 

 brown below, with traces of vertical bands of blackish brown, and with 

 longitudinal lines upon each series of scales, resembling those in Mol- 

 lienesia, but less conspicuous. A blackish blotch upon the side, under 

 the origin of the dorsal, and about as large as the eye; a sinaller one on 

 the posterior limb of the dorsal. 



D. 1, 10; A. I, 12-13. L. lat. 25-20; L. transv. 12. 



170. Zygonectes chrysotus, (Giiutlier) Jordan. 

 St. Augustine; Arlington. 



171. Fundulus seminolis, Girard. 



Lake Monroe. (Described from Palatka.) 



