Gulf Killifish

Scientific Name: Fundulus grandis
Other Names: Mud Minnow, Bull Minnow

Characteristics:
Coloration: Predorsal stripe may be present but fades with age. Predorsal spot absent or not reaching occiput; no dark subocular bar; body mottled, barred or irregularly spotted. Base color is dull greenish above shading to lemon yellow below; 12-19 faint stripes on the sides; anal and lower half of caudal may be yellow or the anal, dorsal and caudal may be dark with white splotches at base; first two may be edged with yellow, caudal may be edged with white; ventrals are yellow and the pectorals pale; in some males, dorsal and caudal are flecked with silver and the anal is pale; coloration in males much more vivid with silver flecking and striping noticeable; larger females may appear olive to dull olive yellow below.
Body shape: Dorsal fin originating anterior to anal fin origin; eye goes fewer than 1.5 times in snout. Large, stout-bodied with blunt head; relative body depth increases with fish size.
Where Found: Common along bay shores and tidal marshes in wide range of salinities.
Commercial or Environmental Importance: Popular as bait fish for coastal fishing and are sold locally as mud minnows. Gulf killifish are important predators of mosquito larvae and pupae.