214 
BULLETIN OF THE BUREAU OF FISHERIES 
interorbital 2.8; pectoral 2.3; dorsal and anal each with 6 rays; distance of origin of 
dorsal from tip of snout 1.33 in length; origin of anal a little behind that of dorsal; 
ventral disk small, its length5 and its width 6.2 inlength, distance from posterior margin 
of disk to anal 2.4 in length; outer teeth of lower jaw horizontal, broad incisors with 
entire edges, smaller teeth behind outer row present; upper jaw with an outer series 
of rather long, narrow, subequal, pointed teeth, with smaller teeth behind. 
Color in life. — Bright emerald green, covered with white spots and dots; one 
longitudinal row of rather large white spots on mid line of back, a similar row along 
middle of side, smaller white dots scattered between the rows of larger spots; white 
spots on head and underside of body being of intermediate size and irregularly 
scattered; a longitudinal, somewhat oblique, dark line in front of eye, faintly con- 
tinued for some distance back of eye. 
I cm 
Fig. 5. — Gobiesox beryllinus. (Enlarged 6% times.) The lower figure represents a ventral view of the bead and disk 
The foregoing color description was drawn from the specimen while it was 
being kept alive in a pan of water in the laboratory. After being kept for a few 
days in alcohol the green color entirely disappeared and red tints became evident. 
A red streak was present behind the eye; the iris was red and the body was sprinkled 
with minute reddish dots. The red tints also disappeared after the specimen had 
been in alcohol over two years. This may have been due in part to the strong 
light in which it was constantly kept. The body and head then became plain 
olivaceous, without distinct markings, and the eyes were dark. 
Holotype. — No. 87533, United States National Museum, 20 millimeters long. 
Type locality. — Key West (Boca Chica), Fla., November 2, 1922; obtained 
with a drag seine along the shore. 
A single specimen of this species has been studied. Its nearest relatives in the 
West Indian fauna appear to be Sicyases rubiginosus Poey (Synopsis, 1868, p. 391) 
and Sicyases carneus, Poey (loc. cit., p. 292). From the former it differs strikingly 
by its color pattern, and from the latter it appears to differ by its color and smaller 
eyes. When a direct comparison of material is made, other structural differences 
most probably will be found. 
