Jordan and Evermann. Fishes of North America. 651 



than lower ; eye exactly in middle of length of head, its diameter 4 in 

 head, and more than i width of the interorbital space, which is flat. 

 Origin of dorsal a little nearer tip of caudal than to gill opening, over 

 twenty-third scale of lateral series : anal fin entirely before dorsal ; 

 pectoral extending to ventral, which reaches vent; caudal rounded; all 

 the fins well developed. Light brownish olive ; posterior half of dorsal 

 and anal fins with black cross bands ; basal half of caudal with round 

 light spots. Coast of Costa Rica. (Named for Capt. John M. Dow, its 

 discoverer.) 



Haplochilus Jovii, GUNTHER, Cat., vi, 316, 1866, Punta Arenas, Costa Rica. (Coll. Capt. Dow.) 



951. FUNDULUS MACDONALDI (Meek). 



Head 3f ; depth 4 to 5 ; dorsal 11 or 12 ; anal 12 to 14 ; scales large, 34 

 to 36-12. Body rather long and slender, not much compressed ; top of 

 head flat ; back slightly arched. Teeth rather large, in a narrow band 

 above, those in the outer series enlarged and curved inward. Ventrals 

 very small, and situated midway between pectoral and anal fins ; dorsal 

 fin small ; anal larger ; origin of dorsal behind origin of anal ; caudal 

 fin rather large, rounded. Color greenish in spirits, no distinct markings, 

 darker on upper portion of body ; both jaws more or less edged with 

 blackish. Closely allied to Fundulus sciadicus, but with larger anal fin, 

 more slender body, and rather stronger teeth. Length 1\ inches. Trib- 

 utaries of the Gasconade and Neosho rivers, in southern Missouri. (Named 

 for Marshall McDonald, United States Fish Commissioner, under whose 

 direction the explorations of the Ozark region were made.) 



Zygonectes macdonaldi, MEEK, Bull. U. S. Fish Comm., ix, 1889 (1891), 122, pi. 42, fig. 1, Jones 

 Creek, Dixon, Missouri; Osage Fork of Gasconade River at Mansfield; Neosho 

 River, Missouri. (Coll. Meek, Drew & Rettger.) 



952. FUNDULUS FLORIPINNIS (Cope). 



Head 4i ; depth 5 ; eye large, 3 in head. D. 10 ; A. 13 ; 'scales 29-10. 

 General form of Fundulus notatus] lower jaw somewhat projecting; 

 external series of teeth in both jaws enlarged. Olive gray, scales with 

 ocher borders; fins yellow, broadly edged with crimson. Length 2i 

 inches. Platte River and Arkansas River in Colorado; our specimens 

 from Denver, where it is rare; also recorded from Cherry Creek, a tribu- 

 tary of the Arkansas. A very pretty little fish, (flos, flower; pinna, fin.) 

 Haplochilm jloripinnis, COPE, Zool. Wheeler Survey, 695, pi. 28, figs. 4, 4a, and 4b, 1875 (1870), 



Cherry Creek, Arkansas River, Colorado, and Platte River at Denver. (Coll. H. 



W. Henshaw and J. M. Keasboy.) 

 Zygonectes floripinnis, JORDAN & GILBERT, Synopsis, 339, 1883. 



953. FUNDULUS JENKINS! (Evermann). 



Head 3| ; depth 4i (4fr to 5) ; eye 3* (3 to 3f). D. 8 or 9 ; A. 12 (11 to 

 13) ; scales 33-10, 18 before the dorsal. Body moderately elongate, head 

 depressed, wide between the eyes, pointed, the snout about i greater than 

 eye, which is contained 1| times in interorbital width ; mouth rather 

 large, little oblique ; teeth in more than one series, the outer enlarged, 

 pointed, and slightly curved inward ; humeral scale small, three rows of 



