JUVENILE AND SEX CHARACTERS OF E. LYRICUS 
121 
the two black spots on the base of the tail, one above the other and separated by a 
median area of a lighter color. 
In regard to the status of Gobius umrdemanni Girard, it seems that no subsequent 
author has reexamined the type which has been stated to be lost. Jordan and 
Eigenmann suggested that it “may have been drawn from a female of the same 
species [Gobius lyricus].” Girard’s short description quite fits the female of this 
species, but it may apply just as well to Gobionellus boleosoma, which is much more 
common on the coast of Texas than lyricus, or it may apply equally well to Gobionellus 
shufeldti. Since, however, Girard’s typical material of lyricus included at least six 
specimens of boleosoma, it is evident that he regarded the latter species as the young 
of lyricus. As for shufeldti, that species does not appear to be as common. It is, 
therefore, quite plausible to assume that umrdemanni is the female of lyricus. At any 
rate, since the type specimen has been lost and the question can not be positively 
settled, it is most expedient to let that name rest in peace in the synonymy of lyricus, 
because such action will least disturb the present-day established nomenclature of the 
American gobies. 
EVORTHODUS 
Evorthodus Gill, Pr. Ac. Nat. Sc. Philadelphia, p. 195, 1859. 
Genotype: Evorthodus breviceps Gill=female of Gobius lyricus Girard. Monotypic. 
Mugilostoma Hildebrand and Schroeder, Fish. Chesapeake Bay, p. 327, 1928. 
Genotype: Mugilostoma gobio Hildebrand and Schroeder — juvenile of Gobius lyricus Girard. 
Monotypic. 
Small gobies with a moderately elongated body. Scales on body rather large, 
ciliated. Cycloid scales present on upper part of opercle to about the level of the lower 
margin of the eye. Antedorsal area with smaller cycloid scales extending to eyes; 
small, partly embedded scales also present on chest and ventral surface of abdomen. 
Mouth medium, maxillary narrow and weak in both sexes, not quite reaching pos- 
terior margin of eye. Caudal fin moderately elongated and pointed in full grown 
males, shorter and nearly rounded in females and young of both sexes. Teeth in 
females and young males in a single row, small compressed, notched, proximate; in 
full-grown males teeth rather long, somewhat pointed, spaced, their distal margin 
entire, and with a second row of enlarged teeth in lower jaw behind outer row, four 
to eight in number; the very young having teeth like the females but with entire 
margins. First dorsal with 6 spines, second dorsal with 11, and anal with 12 rays. 
Ventral disk well developed, free, infundibuliform. Shoulder girdle without flaps of 
skin. Tongue free, with entire edge. 
EVORTHODUS LYRICUS 
Gobius lyricus Girard, Pr. Ac. Nat. Sci. Philadelphia, p. 169, 1858 (Brazos Santiago, Tex., male). 
Gobius wurdemanni Girard, Pr. Ac. Nat. Sci. Philadelphia 1. c. (Brazos Santiago, Tex.). 
Evorthodus breviceps Gill, Pr. Ac. Nat. Sci. Philadelphia, p. 195, 1859 (Trinidad, female). 
Gobius lyricus, Girard, U. S. and Mex. Boundary Survey, Part 2, Ichthyology, p. 25, pi. 12, figs. 
4r- 5, 1859 (Texas). 
Gobius wurdemanni, Girard, 1. c. (Texas). 
Smaragdus costalesi Poey, Mem. Hist. Nat. Cuba, 2: 280 (1856-1858), 1861 (Cuba, male). 
Evorthodus breviceps Gunther, Cat. Fish. Brit. Mus., 3: 85, 1861 (Surinam). 
Gobionellus costalesi Poey, Rep. Fis. Nat. Cuba, 2: 394 (Synopsis) 1868 (Cuba). 
Gobionellus costalesi, Poey, Ann. Soc. Esp. Hist. Nat., 5: 168 (Ennumeratio, p. 126), 1876 (Cuba). 
Euctenogobius lyricus, Jordan and Gilbert, Bull. U. S. Nat. Mus., 16: 633 (1882), 1883. 
Gobius lyricus, Jordan and Gilbert, Pr. U. S. Nat. Mus., 5: 294, 1882 (Galveston, male), 
Gobius lyricus, Jordan and Eigenmann, Pr. U. S. Nat. Mus., 9: 496, 1886, 
