408 SNODGRASS AND HELLER 



series from first dorsal spine to anal 32. Dorsal and ventral outlines 

 symmetrical, body elongate, ovate; teeth strong, flat, obliquely inclined 

 forward, notched outer angle most prominent, lower median teeth 

 largest; teeth white and pale green ; eye oval, longitudinal diameter the 

 longer, 2 in interorbital space; first dorsal spine strong, tuberculate on 

 outer surface ; second short, i of first ; third about i of second ; soft dor- 

 sal and anal similar to each other, each high, no rays projecting beyond 

 membranes, posterior borders concave ; caudal angles produced, me- 

 dian rays |- of lower lobe, which is a little the longer; scales rough- 

 ened each by a central group of tubercles, each of the posterior ones 

 with a median carina forming about 9 longitudinal rows on caudal 

 peduncle, some of which continue forward on body extending faintly 

 even past the middle of the body; pectoral small, upper rays longest; 

 front of anal beneath front of posterior two-thirds of dorsal ; first dor- 

 sal spine a little back of base of pectoral; ventral spine short and 

 blunt, midway between front of anal and vertical from base of pectoral ; 

 entire body scaled, except preorbital groove, space about nostrils, lips, 

 and dorsal ridge bearing rays of dorsal fin- 



Color in Ufe. — Above light purplish-brown, whitish on belly, dark- 

 est on snout ; iris olive ; fins all dusky. 



140. XANTHICHTHYS MENTO ( Jordan & Gilbert). 



Balistes mettto ]OK\iA^ Sl Gilbert, Proc. U. S. Nat. Mus. 1881, 228, Clarion 



Island. « 



Xanthichthys metito, Jordan & Evermann, Fishes North and Mid. Amer., 



II, 1710, 1898. — Jordan & McGregor, Rep. U. S. Fish Comm. for 



1898 (1899), 280, (Clarion and Socorro islands). 



Range. — Revillagigedo Archipelago. 



Known only from Clarion and Socorro islands, Revillagigedo 

 Archipelago. 



141. MELICHTHYS BISPINOSUS Gilbert. 



Melichthys bispinosus Gilbert, Proc. U. S. Nat. Mus. 1890, 125, Clarion 

 and Socorro islands. — Jordan & Evermann, Fishes North and Mid. 

 Amer., 11, 171 1, 1898 ; ibid. Check-list, p. 423. 



Range. — Revillagigedo Archipelago and Cocos Island. 



We have 6 specimens from Cocos Island. 



Color in life. — Sides, back and belly emerald-green, each series of 

 scales with a dark brown band mesially ; a large light bronze cheek 

 patch extending from below eye to mouth ; top of heatl and snout irreg- 

 ularly banded with dark brown; caudal with fine blue stripes near tip; 

 dorsal and anal like back, with narrow light blue stripe at base; 

 pectorals like sides; iris black. 



