394 BULLETIN OF THE BUREAU OF FISHERIES. 



Of this species we have 8 specimens from Aua, on the north shore of Tutuila, 9 from Pago Pago, 

 50 from mouth of Vaisigono River at Apia, and 1 from Apia collected by Dr. Lung, U. S. N., in 1890. 



This extraordinary little fish is very abundant in the sluggish and brackish waters in the mouths 

 of the streams of Samoa. It abounds especially in muddy bayous, freely leaving the water to climb 

 bushes, to skip through the grass or to lurk under piles of stones to await the returning tide. It is 

 exceedingly quick of movement and very tenacious of life. Specimens placed in a pail of formalin 

 escaped when the lid was raised. 



Life colors of one from a mud puddle at Apia, mottled gray; speckles on head pure white, others 

 dull whitish; silvery cross-streaks on side, some light and a few dark streaks on body; dorsal with 

 spots of pure bluish white below, then black, then edged with dull white; second dorsal reddish 

 brown above, then a white band, then a black one, then dull olive reticulations around pale spots; 

 caudal light and dark olive; anal pale grayish; ventral gray, with dusky center; upper surface black, 

 pale edged; under side of head livid gray, with pale or white spots; pectoral dotted much like caudal. 



A specimen taken in coral sand in the sea at Pago Pago was olive, back with nine dark cross-bands, 

 unequal, some of them oblique; head and sides with gray dots and marblings; a dark bar from front 

 of eye down and forward; one down and back from posterior part of eye; first dorsal very small, vn, 

 with a dark bar at base; second with oblique black cross-streaks; caudal with four or five dark cross- 

 streaks; pectoral with a black dot at base above and faint cross-streaks; ventral and pectoral pale; 

 ventral separate. In spite of the small number of dorsal rays, this specimen is probably identical with 

 the others of this variable species. 



PERI0PHTHA1M0D0N Gill. 



This genus is close to Periophthahnus, differing in the shorter spinous dorsal, the ventrals mostly 

 united in the adult. 



1433. Periophthalmodon schlosseri (Pallas). Fiji; New Guinea (Ramsay & Ogilby); East Indies. 



1434. Periophthalmodon australis (Macleay). New Guinea. 

 Periophthahnus australis Macleay, Proc. Linn. Soc. N. S. W. 1884, 334. 



CHLAMYDES Jenkins. 

 Chlamydes Jenkins, Bull. U. S. Fish Comm., xxii, 1902 (1903), 503 (laticeps). 

 This genus has the general character of Gobius, including the silk-like fringe to the pectorals, but 

 the cheeks and opercles are covered with scales. 



1435. Chlamydes laticeps Jenkins. Hawaii. 



1436. Chlamydes cotticeps (Steindachner). Tahiti. 

 Gobius cotticeps Steindachner, Sitz. Ak. Wiss. Wien 18S0, 237, Tahiti. 



GNATHOLEPIS Bleeker. 



Gnatholepis Bleeker, Arch. Neerl. 1875, 318 (anjerensis). 



Hazeus Jordan & Snyder, Proc. U. S. Nat. Mus., xxiv, 1902 (1901), 51 (otakii). 

 This genus has the character of Rhinogobius, except that the cheeks and opercles are covered 

 with large scales. The species are small, pale in color, and live about the coral reefs. Gnalholepis 

 thompsoni is found in the West Indies, Gnalholepis otakii in Japan. The tongue is notched in 

 Gnalholepis deltoides, thompsoni, knighti, and otakii. Gnatholepis anjerensis we have not seen, but the 

 scanty description approaches G. deltoides. 



1437. Gnatholepis deltoides (Seale). Guam; Samoa. 



Gobius deltoides Seale, Occ. Papers Bishop Museum, vol. i, no. 3, 1901, 125, Guam. 



tQobius anierensis Bleeker, Blennioiden en Gobioiden, 1850, 251, Anjer (Java). 



'Gnatholepis anjerensis Bleeker, Arch. Neerl., ix. 318, 1875. " Caput superne lateribusque squamatum." 



This species apparently differs from Gnatholepis anjerensis (Bleeker), the type of the genus Gnath- 

 olepis, in the smaller scales and more elongate body. The scanty description of the latter, with no 

 reference to the color, renders it difficult to make a positive identification. The longer caudal, 4J 

 instead of 5 in total length, also may be distinctive. 



Gnatholepis knighti from Hawaii is very close to the present species, but has smaller scales, 32-9. 

 The coloration is very similar to that of our specimens called Gnatholepis samoensis. 



