118 PEOCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



172. Fundulus floridensis, Le Sueur. 



Described from "Cliarlotte Bay" (sic), Florida. 



173. Fundulus confluentus, sp. uov., Goocle & Bean. 



A single specimen (No. 18005) obtained by Professor Baird in Lake 

 Monroe. 



Height of body a little less than four times in total length (without 

 caudal); length of head two-sevenths. Head low, flat. Snout not pro- 

 duced, its length equal to that of the eye. Mandible equal to the eye. 

 Width of interorbital space half that of the head. Diameter of eye con- 

 tained four times in length of head, and twice in width of interorbital 

 space. Origin of the dorsal midway between the tip of the caudal and 

 the middle of the eye. First anal ray under second dorsal ray. Anal 

 higher than long. Yellowish gray, with longitudinal lines down the 

 center of each dorsal and lateral row of scales, and with fourteen or more 

 distinct, irregular, vertical bands. In general appearance it resembles 

 Hydrargyra majalis. The scales are much crowded, there being at least 

 45 transverse rows of scales. There appear to be only five branchioste- 

 gals, though this point is not certainly ascertained, the specimen being 

 imperfect. 



D. 10; A. 10; V. 6. 



174. Fundulus heteroclitus, (Linn.) Gill. 

 And other species? 



175. Hydrargyra swanipina, Lac* 

 Described from Florida. 



176. Hydrargyra majalis, (Walb.) Val. 

 Mouth of St. John's. 



177. Gambusia arlingtonia, sp. nov., Goocle & Beau. 



l^umerous specimens (No. 21308) obtained in the Arlington Elver. 



Height of body contained four times in total length, without caudal ; 

 the length of the head three and one-third. Snout broad, lower jaw 

 projecting. Diameter of eye much greater than length of snout 

 (double in young), one-third to two-fifths (in young) of that of the head, 

 and two-thirds the width of the interorbital space. My specimens 

 appear to be both females. In them the origin of the dorsal is midway 

 between the tip of the tail and the posterior margin of the eye and 

 opposite the sixth anal ray. The pectoral fins extend to the vertical 

 ■from the insertion of the ventrals, which terminate at the vent and in 

 front of the anal ; length of base of anal equal to half its distance from 

 the insertion of the caudal. Color uniform brownish olive. In the 

 smaller specimens two or three series of blackish dots on the dorsal and 

 anal fins. 



D. 9 ; A. 11 ; V. G. L. hit. 33 ; L. transv. 11. 



178. Gambusia Holbrooki, (Agassiz) Gii-ard. 

 Described from-Palatka. 



