294 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
ff. Dorsal spines high, highest reaching past middle of second dorsal. Nape scaly. Body elongate, moderately 
compressed. 
k. Deptli 5 to 6 in length; profile little decurved, skull flattish behind, much broader than in Gobius boleosoma, with 
an evident median ridge; mouth very oblique, much larger than in G. boleosoma; lower jaw thin and flat. 
Back slightly arched. Body a little deeper and rather less compressed than in G. encicomits, depth 5 to 6 in 
length. Head 4. Anterior profile moderately decurved. Eye 3.33 in head. Mouth large, oblique; maxillary 
reaching to below pupil in both sexes. Teeth above uniserial, some of them enlarged and recurved; lower 
teeth in a narrow band; males sometimes with hindermost of outer series a strong, exserted, recurved canine; 
belly naked. Longest dorsal spine two-thirds head in females, elevated in males; soft dorsal elevated in 
males; caudal 3.5 in body. Color, light-greenish, sides of male with 5 or 0 narrow, straight, rather sharply 
defined whitish or yellowish crossbars, regularly placed; 4 dark bars, 3 below eye and 1 on opercle; a small 
dark spot behind and above opercle; vertical fins barred; female with a row of irregular dark spots connected 
by a dusky streak, and with pale crossbars obsolete. D. vi-12; A. 13. Scales 27 stigmalicus 
kk. Depth 4.6C in length; profile very obtuse anteriorly; maxillary extending beyond pupil, 2.6 in head. Teeth strong, 
uniserial, 4 shortish canines in lower jaw behind other teeth; upper teeth largest. D. vi-11; A. 10. lyricus, 248 
kkk. Depth 4 in length; teeth short and thick, uniserial; yellowish, much mottled and blotched. D. vi-11; A. 11. 
Scales 30 garmani 
cc. Scales moderate or small, 40 to 90. 
l. Soft dorsal and anal short, each of 10 to 14 rays; body more or less elongate. 
Euctenogobius: 
m. Caudal rounded, not much longer than head. 
n. Scales 40; dorsal with' 9 soft rays only; anal with 9; depth 6.5 in total length; head broad, flattish; snout short, 
decurved; eye 4.25 in head, 1.33 in interorbital area, longer than snout; maxillary extending to below middle 
of eye. Some of dorsal spines produced in filaments, the third 1.5 times depth of body; caudal short, rounded. 
Two rows of ill-defined blotches on upper half of body; 2 rows of brownish spots on second dorsal, upper strongly 
marked poeyi 
nn. Scales 50; dorsal and anal with 10 soft rays each; profile very oblique. Color dark-brown badius 
Gobionei.lus: 
mm. Caudal lanceolate, much longer than head; lower jaw thin; usually a green spot on roof of mouth in life. 
o. Body rather deep, depth about 5 in length. 
p. Scales rather large, 39 to 42; body moderately elongate, compressed; depth 5.25; head 4. Head not compressed, 
cheek tumid, snout short, abruptly decurved; mouth large, little oblique, jaws equal, maxillary 2.33 in head, 
reaching to below pupil; eye 5 in head; teeth above large, unequal, uniserial, some of them fixed, those below 
small, in a band. Scales anteriorly cycloid, becoming larger posteriorly, and ctenoid; dorsal spines scarcely 
filamentous, none of them as high as body; caudal 2.25 in body. Light-olive, with dark-olive blotches; body 
and head with many conspicuous round spots of cream color, each surrounded by a dusky ring, these most 
distinct on head, all smaller than pupil; snout with dusky streaks; dorsals and caudal sharply barred; anal 
and ventrals dusky (in male); a small round spot at base of caudal. D. vi-11; A. 11 smaragdus 
pp. Scales comparatively small (53). Body elongate, compressed behind; head a little compressed, 3.75 in length; 
depth 5 ; eye 3.5 in head, shorter than rounded snout; maxillary reaching to below middle of eye; teeth 
small, outer a little enlarged; dorsal spines all shorter than head, not filamentous. Nape scaly, its scales much 
reduced in size; scales ctenoid. Two violet stripes from eye to mouth; 8 or 9 violet bars on side; 3 or 4 bars on 
caudal; second dorsal spotted. D.vi-12; A. 11 or 12 strigatus 
oo. Body elongate, depth 6.5 to 9 in length; head 4.5; caudal very long. 
q. Scales very small (60 to 90); caudal more than twice as long as head in adult. Body compressed, extremely 
elongate, depth 6 to 9 in length; head higher than wide, short, compressed, 4.5 to 5 in length; mouth wide, 
oblique; maxillary in adult reaching to below posterior border of eye. Lower jaw very thin and flat; teeth in 
both jaws small, subequal, those in upper jaw in a single series, those of lower in a narrowband; outer teeth 
somewhat movable. Scales anteriorly small, cycloid, embedded, those behind larger and ctenoid; a few scales 
on upper anterior corner of opercle; dorsal fins high, some spines filamentous, longer than head. Caudal very 
long, filamentous, 2 to 2.66 in body. Light-olive; fins dusky in male; a round, black spot on side, a little larger 
than eye, below spinous dorsal; first dorsal spine with 2 or 3 black spots; a small dusky spot at base of caudal; 
emerald spot on tongue conspicuous, fading in spirits. D. vi-14; A. 14 or 15. 
r. Only a few scales on opercle. 
s. Scales large, about 60 hastalus 
s$. Scales smaller, about 71 bayamonensis, 249 
rr. Upper part of opercle with a large patch of scales Oceanians, 250 
247. Gobius soporator Cuvier & Valenciennes. Mapo. 
Head 3 to 3.3; depth 4 to 4.8; eye 4.5 to 5; snout 3.5 to 4; maxillary 2.5 to 3; mandible 2 to 2.3; 
interorbital 5 to 6; preorbital about 8.5; scales 38,-13; D. vi-10, the longest spine, about 1.7 in head, 
the longest ray 1.8; A. 9, the longest ray 1.8; pectoral 1.3; ventral 1.5. Body stout, heavy forward, 
compressed posteriorly, the least width of caudal peduncle about 4 in its least depth; head broad, 
snout blunt; mouth moderate, slightly oblique, the maxillary reaching middle of eye; isthmus very 
broad, gill-openings extending forward but slightly in front of base of pectoral; lips thick; teeth in 
