666 Bulletin 47, United States National Museum. 



Adinia. Females larger than males ; both sexes plump. Color in life : 

 Males olive, with bluish reflections ; edges of the scales darker ; dorsal 

 dusky orange, with a large black spot at the base in front, ocellated 

 with orange; caudal orange yellow, tipped with black; -ventrals and 

 anal orange red, tipped with dusky ; pectorals translucent. Females 

 with the fins pale olive, without black spot or edgings. Length 1 to 2 

 inches. Atlantic Coast from Connecticut to Key West; very common 

 at Key West, in shallow waters and tide pools close to the shore, especially 

 where fresh waters soak in the sea ; here described from Key West speci- 

 mens ; equally abundant about the mouth of the Potomac in brackish 

 ponds and tide ditches. (H. M. Smith.) (parvus, small.) 

 Cyprinodon parvus, BAIRD & GIRARD, Ninth Smiths. Report, 1854 (1855), 345, Greenport, 



Long Island; (Coll. Baird); GUNTHER, Cat., vi, 307, 1866. 

 Lucania parva, JORDAN & GILBERT, Synopsis, 893, 1883; JORDAN, Proc. U. S. Nat. Mus., 1884, 



109; HUGH M. SMITH, Bull. U. S. Fish Comm., x, 1890, 68. 



304. GIRARDINICHTHYS, Bleeker. 



GirardinichtJiys, BLEEKER, Cyprin., 481, 1860, (innominaius). 

 Limnurgus, GUNTHER, Cat., vi, 309, 1866, (variegaius). 



Body stout. Mouth small, its cleft nearly vertical ; the upper jaw very 

 protractile. Teeth small, pointed, in a single series in each jaw. Scales 

 rather small. Dorsal and anal fins long, each with 20 or more rays, nearly 

 opposite each other ; anal fin not modified in the male. Intestinal canal 

 short, about as long as body. Gill membranes partly united, free from 

 isthmus. Very small fishes, differing from Lucania in the long dorsal and 

 anal. Mexico. ( Girardinus ; /^vf, fish; named for Dr. Charles Girard, 

 1822-1895, who studied the fishes of the Mexican Boundary Survey.) 



979. GIRARDINICHTHYS INNOMINATTJS. Bleeker. 



Head 4; depth 3i; eye 5 in head, 2 in interorbital width. D. 20; 

 A. 22 ; scales 44. Head thick, the snout obtuse, the mandible being 

 directed vertically upward ; neck arched, so that the upper profile of the 

 head is concave. Origin of dorsal midway between occiput and base 

 of caudal. Olivaceous, with irregular dark-brown cross bands, which 

 are sometimes confluent. Sexes similar. Length 2i inches. Vicinity 

 of City of Mexico ; not rare. Our specimens collected by Mr. Amos W. 

 Butler, (innominatus, unnamed, Girard having omitted to attach a specific 

 name when describing the species.) 



Lucania, sp., GIRARD, Proc. Ac. Nat. Sci. Phila., 1859, 118, City of Mexico. 



Girardinichlhys innominaius, BLEEKER, Cyprin., 484, 1860, after GIRARD; JORDAN & GILBERT, 



Synopsis, 343, 1883. 

 Limnurgus variegaius, GUNTHER, Cat., vi, 309, 1866; after GIRARD; the name given by BLEEKER 



being regarded as barbarous. 



305. EMPETRICHTHYS, Gilbert. 



Empetrichthys, GILBERT, Death Valley Exped., Fishes, 233, 1893, (merriami). 



Body rather elongate, the form approaching that of Fundulus. Intes- 

 tine short, 1| times length of body. Teeth conic, fixed, in each jaw 

 arranged in a band consisting of two or three rows, the outer series 



