NATURAL SCIENCES OF PHILADELPHIA. 157 



age. Valenciennes says that the scales ofE. longirostris appeared to him to 

 fall easily. The scales ofE.Brevoortii appear to me to be more than usually 

 adherent. If we are both correct, this difference will be important as specific. 

 The two fishes finally appear to differ in color, but the one that has been above 

 described has been apparently long preserved in alcohol. 



The habitat of this species is unknown ; the species allied to it have been 

 hitherto found only in the Oriental seas. 



ICHTH YOLOGICAL NOTICES. 

 BY CHARLES GIRARD, M. D. 



LX. A species of Fundulus, closely allied to F grandis, and of which we have 

 given a good figure of either sex, on Plate xxxvi of the "Ichthyology of the 

 United States and Mexican Boundiy, " was recently collected in Charlotte Bay, 

 Fla., and sent to the Smithsonian Institution. 



The specimens obtained are of the male sex, the largest one measures four 

 inches and a half in total length, the head forming a little more than the 

 fourth of it. The eye is large and circular, the diameter of the orbit entering 

 about four times in the length of the side of the head. The maxillar teeth are 

 rather small and inconspicuous. The body has not the plump appearance of 

 F. grandis ; its greatest depth is less than the fourth of the total length. The 

 dorsal and anal fins are narrower than in F. grandis. The anterior margin of 

 the anal is nearer the posterior margin of the caudal than the apex of the snout; 

 that of the anal is equidistant between the pupil and the margin of the caudal. 

 The latter is rounded off or subtruncated. The anal is inserted somewhat 

 more anteriorly with reference to the dorsal than in F. grandis, and the tips of 

 the rays of the dorsal project a little further than those of the anal fin. The 

 ventrals are possibly smaller than in F. grandis, their extremities not reaching 

 quite the vent. The pectorals are of moderate size and extend as far back as a 

 vertical line drawn at the origin of the ventrals. The rays are : D 12 ; A 11 ; 

 C 2, 1, 8, 8, 1, 2; V 6 ; P 1, 16. The scales are deeper than long, but propor- 

 tionally less so than in F. grandis. The head, dorsal region and flanks are 

 blackish brown, metallic white spots being scattered over the sides of the body 

 and tail. The abdomen is yellowish white The dorsal, caudal, and anal fins 

 olivaceous, checkered with black and white, the ventrals and pectorals being 

 olivaceous. 



The name of Fundulus floridensis is bestowed upon this species. 



LXI. We owe to our friend Dr. Thomas Webb, a species of Cyprinodon, col- 

 lected by him in the neighborhood of San Diego, Cal., while attached to the U. 

 S. and Mexican Boundary, under ex-Commissioner P.. R. Bartlett. 



It may easily be distinguished from its congeners in North America, by its 

 uniform system of coloration which exhibits neither bands nor spots. The 

 general aspect of its body is rather short and deep, except in the young which 

 assume a subfusiform appearance. The largest specimens which we have ex- 

 amined measure about an inch and a half in total length. The head consti- 

 tutes the fourth of the length, the snout being abruptly rounded off. The 

 mouth is, proportionally speaking, of medium size ; whilst the eye is rather small, 

 subcircular ; its diameter entering three times and a half in the length of the 

 side of the head. The dorsal fin is higher than long, and superiorly convex ; 

 its anterior margin being nearer the apex of the snout than the posterior margin 

 of the caudal. The anal fin is nearly as large as the dorsal, deeper than long, 

 inferiorly convex, particularly upon its posterior half. The caudal is poste- 

 riorly truncated, nearly linear. The ventrals are small, project beyond the 

 vent and reach almost the origin of the anal. The pectorals are well developed, 

 rounded off, extending as far as a vertical line drawn at the insertion of the 

 ventrals. The rays are : D 10 + 1 ; A 11 ; C 3, 1, 8, 8, 1, 3 ; V 7 ; P 12. The 

 1859.] 



