640 Bulletin 4J, United States National Museum. 



931. FUNDIILUS PARVIPINNIS, Girard. 



HeadSi; depth 83. D. 13; A. 11 ; scales 38-12. Body moderately elon- 

 gate. Fins very high iu the male, small in the female. Scales large; in 

 the males in spring roughened or ctenoid by email granulations and 

 prickles, similar to the nuptial excrescences of some Cijprinido'; fins also 

 rough. Oviduct forming a sheath at base of first ray of anal. Male 

 light olive green, mottled with darker; sides with silvery and brassy 

 luster; lower parts yellow; about 20 short blackish crossbars along 

 middle of sides, broader, plainer, and more closely set behind; sides and 

 fins with dark points; upper fins dull olive ; lower yellow. Female larger, 

 olive green above, sides not barred, with an obscure dusky lateral band 

 on caudal peduncle; fins plain. Length 4 inches. Coast of California 

 from Point Concepcion southward to Cerros Island; very abundant in 

 bays and lagoons, especially about San Diego, (parvus, small ; irinna, fin. ) 



Fmnhilns imn-ipinnh, GiRAnn, I'roc Ac. Nat. Sci. riiila., 1854, 154, San Diego, California; 

 Girard, Pac. R. R. Surv., x, 303, 1858; Gunthei:, Cat., vi, 319, 1866; Steindaciineh, Icbth. 

 Beitrage, v, 155, 1876 ; Jordan & Gilbert, Synopsis, 333, 1883. 



932. FUNDULUiS HETEROCLITUS (Linuanis). 

 (Common Killifish ; Mudfi.sh ; Coiuslkr ; Mud Dabbler ; Mummichog.) 

 Head 3 to 3s ; depth 3f to 3-^ D. 11; A. 10 or 11 ; scales 35 to 38-13 to 

 15. Body thick-set, short, and deep; anteriorly broad, posteriorly com- 

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

 short, blunt, broad and flat on top ; eye moderate, about equal to snout, 

 about half the width of interorbital space and i length of head; fins 

 moderate, the dorsal inserted in males midway between snout and tip of 

 caudal; in fenuiles farther back ; oviduct attached to anterior ray of anal 

 fin for i to I its length ; teeth in moderate bands, pointed, the outer series 

 enlarged ; lower jaw strong, projecting beyond upper. Coloration in males 

 dark dull green, the belly more or less orange yellow ; sides with numer- 

 ous quite narrow, ill-defined silvery bars made up of silvery spots, most 

 distinct posteriorly ; besides these are numerous conspicuous white or 

 yellow spots, irregularly scattered; vertical tins dark, with numerous 

 small round pale spots ; dorsal often with a blackish spot on its last ray ; 

 anal and ventrals yellow anteriorly ; under side of head yellow ; young 

 males with alternate bars of dark and silvery, the former becoming in 

 time the ground color, the dorsal ocellus more distinct. Females nearly 

 plain olivaceous, lighter below, without spots or bars, the scales finely 

 punctate ; sides often with about 15 dark crossbars or shades. Young, 

 especially young females, with more or less distinct dark cross bands; 

 these always present in the very j'oung, in females narrower than the 

 interspaces, in males much broader and less numerous. Length 3 to 6 

 inches. Coast of Maine to the Rio Grande, everywhere very common in 

 brackish waters, often burying itself in the mud in shallow lagoons ; the 

 most abundant of our PwciliUla', varying considerably in size, coloration, 

 and height of fins.* {iTFpvK?J-ng, irregular or unusual.) 



* In the adult male of the typical heterocUlus from Charleston, South Carolina, the longest dor- 

 sal ray is 1^ times iu head (1| iu macrolepidntuK ; 2 iu ijrundis) ; the longest anal ray 1^ (in macro- 

 lepi(l<ih(s IJ; in graiidix 1|) ; caudal 3^ in length (iu (jrandis 4); ventrals reaching front of anal, 2 

 in head (iu grandis barely to vent, '2| iu head) ; base of dorsal 2 in head (in grandis 2|). 



