484 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
with fringe inside; mandible large, slightly produced; teeth sharp pointed, in broad bands in jaws; 
interorbital space rather broad, slightly concave; nostrils rather close, anterior with a short tube; eye 
high, in first, third of head, directed upward; gill-opening vertical, rather large, slightly oblique, 2.5 
in head; scales rather large, becoming very large on side of caudal peduncle, ctenoid, crowded before 
dorsal, on top of head, and occiput; head, except on top, entirely naked; dorsals well separated; spines 
flexible, fifth 1.8 in head; first dorsal ray shortest, 2.4, last longest, 1.1, intermediate rays graduated; 
anal similar to soft dorsal in shape, first ray 3.75, last 1.25; caudal elongate, about 3.1 in body, roundly 
pointed, middle rays longest, pectoral broad, rounded, middle rays longest, and upper silky; ventrals 
broad, with rather broad frenum in front, 1.4 in head, and not reaching anal papilla; caudal 
peduncle broad, compressed, its length 2, and its depth 2 in head. Described from an example (No. 
3328) taken at Honolulu. • 
Color when fresh, very dark, with black marblings and brown edges to scales; dorsal, anal, 
pectoral, and caudal all closely and finely barred with brown; ventrals brownish; not much dark below 
eye. An example from Waialua, when fresh, was marked with pearly blue spots on a ground of 
mottled light and dark olive, and reddish olive. 
Other examples (Nos. 03229 and 201) show a series of 7 or 8 dusky blotches along middle of side, 
and when viewed from above 4 or 5 broad indistinct cross bands. These are united with a dusky line 
running from upper base of pectoral to middle of base of caudal, which is also confluent with the 
upper portions of the lateral blotches described, caudal with dusky blotches. 
Very small examples have distinct dark blotches on the side, and both dorsals and caudal with fine 
cross lines made up of brown spots on thespines and rays. There is alsoadark spot just behind the eye. 
Fig. 212 . — Mapofuscus (Ruppell). 
Color in alcohol, more or less gray-brown, side with about 10 longitudinal series of white spots, 
head, both dorsals, caudal, and pectoral fins with whitish spots, very small on the latter, and indistinct 
on the spinous dorsal; lower surface of the head, breast, and abdomen dirty whitish; top of the head 
finely speckled. 
This widely distributed goby is exceedingly abundant in Hawaiian waters and is represented in 
the collection by 590 specimens from Honolulu, 59 from Hilo, 2 from Moanalua, 1 from Waialua, 20 from 
Waikiki, 45 from Waianae, and 57 from Kailua. Numerous examples were collected by Doctor Jenkins, 
and some were found by the Albatross at Honolulu, Waialua Bay, Puako Bay, Kealakekua Bay and Hilo. 
We see no differences between these and American examples (M. soporator). 
Gobius fuscus Ruppell, Atl. Rei.s. NordL Af., Fisch., 137, 1828, Red Sea. 
Gobius punctillatus Rfippell, op. cit., 138, 1828, Red Sea. 
Gobius nebulo-punctatus Ruppell, Neue Wirbelthiere, Fische, 139, 1835] (Mar. 1838), Red Sea; Gunther, Cat., Ill, 25, 1861. 
(Examination of Ruppell’s type.) 
Gobius soporator Cuvier & Valenciennes, Hist. Nat. Poiss., XII, 56, 1837, Martinique. 
Gobius albopunctatus Cuvier & Valenciennes, Hist. Nat. Poiss., XII, 57, 1837, Isle of France; Gunther, Fische der Sudsee, 
VI, 172, taf. CX, fig. A, 1877 (Fiji, Society, Navigator, Kingsmill, and Sandwich islands); Fowler, Proc. Ac. Nat. Sci. 
phila. 1900, 517 (Sandwich Islands); Jenkins Bull. U. S. Fish Comm., XXII, 1902 (Sept. 23, 1903), 502 (Honolulu); 
Snyder, op. cit. (Jan. 19, 1904), 536 (Honolulu; Waialua Bay, Oahu; Puako Bay and Kealakekua Bay, Hawaii; Hilo), 
Gobius padangensis Bleeker, Nat. Tijds. Ned. Ind., I, 1849, 249, Pedang. 
Gobius breviceps Blyth, Proc. Asia. Soc. Beng. 1858, 271, Great Andaman Island. 
Gobius homocyanus Vaillant* Sauvagc, Rev. Mag. Zool. (3), III, 1875, 280, Sandwich Islands. 
Glossogobius giuris , Streets, Bull. U. S. Nat. Mus., No. 7, 60, 1877 (Coral reefs of Oahu); not of Hamilton. 
Gobius sandvicensis Gunther, Rep. Shore Fishes, Challenger, 60, 1880, Honolulu, fresh water. 
