ICHTHYOLOGY. 



71 



constituting about seven longitudinal series on either side of the body. The dorsal fin is 

 likewise transversely black spotted. 



8; 12; 



7,7 

 do 



do 



do 



XXXVIII 



(Male.) 

 (Female.) 



Fig. 9, 



an enlarged front view of the mouth, showing the teeth. Fig. 10, an outline from above. 

 Fig. 11, ideal transverse section across the greatest depth and width. Fig. 12, female sex of 

 the same species, size of life. Fig. 13, an outline from above. Fig. 14, a transverse section. 



List of specimens. 



■ 



Catal. 

 No. 



No. of 

 spec. 



— ■ — — — 



Sex. 



• 



670 



2 



SQ 



Locality. 



When col- 

 lected. 



Whence obtained. 



Indianola, Texas 



1851 



Nature of 

 specimen. 



Collect i bf 



Col. J. D. Graham... 



Alcoholic. 



John H. Clark 



2. LIMIA VENUSTA, Grd. 

 Plate XXXIX, Figs. 20—23. 



Spec Char. — The body is gracefully fusiform, elongated, and compressed ; the head forming somewhat less than the fourth 

 of the total length. The teeth of the external row are slender and acute, a good dnal larger than in the preceding species, 

 and the snout is thicker and less depressed. The dorsal fin is larger than the anal, and situated more in advance than in the 

 species just alluded to, the same sexes being compared. The shape and position of the other fins do not differ materially in 

 both species, except the pectorals, which are more slender in the present one. The posterior margin of the caudal fin is, as 

 usual, rounded off. 



The color is reddish brown, apparently uniform, although traces of black spots or dots seem 

 to have existed at the base of the scales ; but the epidermis being partly removed from the 



specimens preserved in alcohol, the living ones may exhibit distinct spots. 



D 13 



All; 3,1,8,8,1,2; V5; P 10. 



) 



XXXIX 



Fig. 21 is 



a front view of the mouth, considerably enlarged in order to show the teeth. Fig. 22, an 

 outline from above. Fig. 23. an ideal section across the line of greatest depth and width. 



List of specimens . 



Catal. No. of Sex. 



No. 



spec 



Locality. 



669 



I 



9 



Indianola, Texas 



When col- 

 lected. 



Whence obtained 



185L 



Col. J. I). Graham 



Nature of 

 specimen. 



Collected by 



Alcoholic . John H. Clark 



1. GrAMBUSIA N013ILIS, Grd. 

 Plate XXXIX, Figs. 8—11. 



Spec. Char. — Body rather short and stoutish ; head large, forming about the fourth of the total length. Anterior margin 

 of dorsal fin situated midway between the extremity of the snout and the posterior margin of the caudal. Anal much smaller 

 than the dorsal ; both being comparatively broad and exteriorly rounded. Ventral fins very small ; pectorals moderate sized 

 and rather short. 



Syk.— If eterandria nobilis, B. & G. in Proc. Acad. Nat. Sc. Philad. VI, 1853, 390. 



