314 NEW YORK STATE MUSEUM 



Genus L.UCANIA Girard 



The body oblong, compressed; lower jaw prominent, the cleft 

 of the mouth short and very oblique ; mouth moderate, the snout 

 not produced, each jaw with a single series of conical teeth; 

 scales very large; gill openings not restricted; dorsal and anal 

 rays in moderate number, the dorsal above or slightly in 

 advance of the anal; anal fin not modified in the males. Very 

 small, oviparous fishes of the brackish waters, swamps and 

 shallow bays of the United States. 



156 Lucania parva (Baird & Girard) 

 Ra/vrnvater Fish 



Cyprinodon parvus BAIRD & GIRARD, Ninth Smithsonian Kept. 345, Ih56, 



Greenport, Long Island; GUNTHER, Cat Fish. Brit. Mus. VI. 307, 



1866. 

 Lucania parva JORDAN & GILBERT, Bull. 16, U. S. Nat. Mus. 893, 1883; BEAN, 



Bull. U. S. F. C. VII, 148, pi. II, fig. 18, 1888; 19th Rep. Comin. 



Fish. N. Y. 275, 1890; HUGH M. SMITH, Bull. U. S. F. C. X, 68, 1890; 



JORDAN & EVERMANN, Bull. 47, U. S. Nat Mus. 665, 1896, pi. CIX, fig. 



292, 1900; BEAN, 52d Ann. Kept. N. Y. State Mus. 99, 1900. 



Body rather short and stout in the adult, its greatest depth 

 two sevenths of the length to base of caudal; caudal peduncle 

 moderately long and deep, its least depth nearly one half the 

 length of head; the mouth small, oblique, with heavy projecting 

 lower jaw; snout short, nearly equal to eye, about two ninths 

 as long as the head; eye rather large, its horizontal diameter 

 two sevenths as long as the head; head stout, with obtuse muz- 

 zle, its length nearly one third of the total to base of caudal; 

 dorsal origin midway between tip of snout and base of middle 

 caudal rays, the dorsal base about one fifth of total length to 

 caudal base, the longest dorsal ray one half as long as the head, 

 the last dorsal ray a little more than one third as long as the 

 head. The anal fin begins under the middle of the dorsal, its 

 base as long as the snout and eye combined, its longest ray one 

 half as long as the head. The ventral is slightly in advance 

 of the dorsal, its length three eighths of length of head. The 

 pectoral reaches slightly beyond the origin of dorsal, its length 

 nearly one fifth of total length to base of caudal. Caudal large, 



