FISHES OF THE PHOENIX AND SAMOAN ISLANDS 229 



little over halfway across cheek but not to rear 

 edge of preopei'cle ; ventral margin of body with 

 six black blotches; a black V-shaped spot at 

 base of caudal fin ; pelvies dark ; dorsal rays 

 VI-I, 7 ; anal I, 6 ; pectoral 16. 



Mahidolia pagoensis, new species 

 216. More than 50 scale rows from gill opening to base of 

 caudal fin ; breast scaly. 

 31a. Midline of nape in front of dorsal fin naked, but 

 sides of nape scaly ; cheeks and opercles naked ; 

 maxillaries extend to rear of eye. 

 32a. Tentacle on upper part of eye ; 54 scale rows, 16 

 in a transverse series ; jaws equal ; tongue 

 rounded ; caudal fin lanceolate ; dorsal rays VI- 

 I, 12 ; anal I, 12 or I, 13 ; pectoral 19 ; snout con- 

 tained about 1.8 times in maxillaries. 



Oxyurichthys tentacularis (Valenciennes) 

 32&. No tentacle on eye ; 70 to 80 scale rows, 24 in trans- 

 verse series; lower jaw a little shorter than 

 upper jaw ; tongue truncate ; caudal rounded ; 

 dorsal rays VI-I, 10 ; anal I, 10 ; pectoral 15 ; 

 snout contained about 2.1 times in maxillaries. 

 Oxyurichthys papuensis (Valenciennes) 

 316. Nape or midline in front of dorsal scaled and sides 

 of nape scaled ; caudal fin rounded ; no tentacle 

 over eye ; tongue rounded ; maxillaries do not quite 

 extend to rear of eye. 

 33a. Scale rows 62; 20 scales in front of dorsal and 18 

 in a transverse series ; cheeks and opercles naked ; 

 dorsal rays VI-I, 10; anal I, 9; pectoral 16; dis- 

 tinct cross-lines of pores on head ; no vertical 



color bar Mars strigilliceps Jordan and Seale 



336. Scale rows 55 to 57; 25 scales in front of dorsal 

 fin and 19 or 20 in a transverse series; cheeks 

 naked ; opercles scaly ; jaws equal ; dorsal rays 

 VI-I, 14; anal I, 13 or I, 14; pectoral 19; about 

 five double brownish color bars behind head, sel- 

 dom lacking; caudal fin with one or two black 

 spots in upper rays. 



Amblygobius phalaena (Valenciennes) 

 206. First ray of both dorsal fins conspicuously spinous and 

 stronger than other rays ; cheeks and opercles naked ; 

 breast scaly; midline and sides of nape scaly; tongue 

 truncate ; abdomen scaly ; gill membranes broadly 

 joined to isthmus ; maxillaries reach to front of eye ; 

 no spines on rear edge of opercle ; dorsal rays V-I, 10; 

 anal I, 10 ; pectoral 18 ; scale rows 28 and before 

 dorsal 10; eight scales in transverse row. 



Oplopomus diacanthus, new .species 

 lb. Dorsal rays XlV-or XV-I, 11 to I, 13; anal I, 10 to I, 12; pectoral about 

 13; eyes prominent on top of head, much above profile ; scales 82 to 88 



Periophthalmus koelreuteri (Pallas) 



