io6 FIELD COLUMBIAN MUSEUM ZOOLOGY,' VOL. V. 



Fundulus similis G-iinther, Cat., vi, 323, 1866: Jordan & Ever- 

 man, Bull. 47, U. S. Nat. Mus., 1896, 638. 



Brackish and fresh waters along the gulf coast from Florida to 

 Mexico north of the Rio Panuco. (Linares ; Victoria.) 



Head 3^; depth 3%" to 4f; D. n to 13; A. 10; scales 11-33. 

 Body slender, the outlines scarcely arched; adults deeper than young; 

 head very narrow and long, narrowed forward; snout 3 in head; 

 mouth small, maxillary not reaching vertical from anterior nostril; 

 teeth very small, in villiform bands, the outer series not at all en- 

 larged; eye small, 4 to 5 in head; origin of dorsal midway between 

 tip of caudal fin and eye, slightly in advance of anal; pectoral i% 

 in head ; ventrals 3 X m head ; caudal subtruncate. 



Color of male olivaceous, lighter below; sides with 10 to 15 narrow 

 dark bars y$ to y$ as wide as interspaces; a large, diffuse, dark, 

 humeral spot; dorsal dusky, a small occellated spot on last dorsal 

 ray in the young; female olivaceous, sides paler, with metallic 

 luster; white below; 7 to 15 very narrow black bars on sides not ex- 

 tending on the back, scarcely broader than pupil. Length about 

 3^ inches. 



The largest specimen taken by me is 3.75 inches in length. Spawn- 

 ing time not known. 



94. Fundulus heteroclitus (Linnaeus). KILLIFISH. 



Cobitis heteroclitus Linnaeus, Syst. Nat., Ed. xn, 500, 1766; 

 Charleston, South Carolina. 



Fundulus heteroclitus Jordan & Evermann, Bull. 47, U. S. Nat. 

 Mus., 1896, 640: Jordan & Snyder, Bull. U. S. Fish Comm., 

 1900, 126; Lagoons, Tampico: Evermann & Goldsborough, 

 Bull. U. S. Fish Comm., 1902, 149; Progreso. 



Abundant in lagoons and brackish waters along the coast from 

 Tampico to Maine. It probably does not enter fresh water. 



Head 3 to 3^; depth 3! to 33; D. n; A. 10 or u; scales 13-35 

 to 38. Body short and deep; anteriorly broad, posteriorly com- 

 pressed, the back 'elevated, the caudal peduncle robust; head rather 

 short, broad, and flat on top; snout bluntish, 3> in head; teeth in 

 bands, the outer series enlarged; eye small, 4 to 5 in head; origin 

 of dorsal midway between tip of caudal and tip of snout (3) or eye 

 (?); caudal fin truncate; least depth of caudal peduncle 2 in head; 

 pectorals i^ in head; ventrals 2^. 



Color of males dull dark green above, more or less orange below; 

 sides with numerous, quite narrow, ill defined silvery spots, most 

 distinct posteriorly, and with conspicuous white or yellow spots 



