140 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM 



Chaelodon leachii Cuvier, Hist. Nat. Poiss., vol. 7, 1831, p. 49. No local- 

 ity. — GtJNTHER, Cat. Fish. Brit. Mus., vol. 2, 1860, p. 6 (copied). 



Chaelodon leachi Kaup, Arch. Naturg., vol. 26, abth. 1, 1860, p. 149. 



Megaprotodon leachii Guichenot, Rev. Zool., 1848, p. 12. 



Eteira taunayi Kaup, Arch. Naturg., vol. 26, abth. 1, 1860, p. 148 (on QuoY 

 and Gaimard). 



Coradion melanopris (not Cuvieu) Bleeker, Atlas Ichth. Ind. N^erland., 

 vol. 9, 1877, pi. (13) 375, fig. 1 (not 4). 



Depth 1^ to 21^; head 3 to 3H, width 1^ to V/^. Snout 3 to 

 3% in head; eye 2% to 3%, slightly longer than snout to equal with 

 age, ly^ to 1^ in interorbital; maxillary 3^ to % in snout, 4 to 43^ 

 in head; interorbital 2^ to 3, broadly convex. Gill rakers 6 + 20, 

 short points, 3^ of gill filaments, which \}/i m. &y&. 



Scales 34 or 35 between gill opening and caudal base; tubes 21 or 

 22 in lateral line; 8 scales above lateral line, 10 or 11 below. Scales 

 with 8 to 12 basal radiating striae; apical denticles 83 to 100, with 

 4 to 9 transverse series of basal elements; circuli very fine. 



D. XIV, 15, I or 16, i, last spine 1^ to 2 in head, fifth ray ly^ 

 to 1 or Httle more; A. IV, 15, i or 16, i, fourth spine 1% to \%, 

 seventh ray 13^ to \%; least depth of caudal peduncle 2% to 3; 

 caudal truncate or hind edge very slightly double concave, 13^ 

 to 1%; pectoral 13-5 to 13^; ventral 1}/^ to l}/^. 



Back brown, with slight olive tinge, lower surface paler to whitish. 

 On middle of side little above median axis, two elongate or horizon- 

 tal pale blotches, first about as long as head and second a little 

 shorter. About 20 oblique dusky lines on side of body, following 

 medianly in rows of scales, on back obliquely forward till near me- 

 dian axis when all turn obliquely downw^ard posteriorly. Broad 

 blackish-brown band from predorsal, occasionally meeting its fellow, 

 includes eye and down over cheek to chest; both front and hind 

 edges with white bordering line. Soft dorsal and anal with narrow 

 pale edges and blackish submarginal line. Caudal largely blackish- 

 brown, upper and lower edges narrowly pale; hind edge narrowly 

 white, then narrow blackish submarginal line and broad pale brown- 

 ish band against dark color. Paired fins pale. 



Red Sea, Zanzibar, Mauritius, East Indies, Micronesia, Polynesia. 

 A rather oblong species, easily known by the presence of 4 anal 

 spines and the dark ribbed color pattern of broad angled V-shaped 

 marks on the side, all directed forward. We have not found am* 

 example with 5 anal spines as mentioned by Valenciennes and 

 Bleeker. 



1137. Alibijabau Island. March 6, 1909. Length 128 mm. 

 4888. Alimango Bay, Burias Island. March 5, 1909. Length 131 mm. 

 4845. Biri Channel. June 1, 1909. Length 91 mm. 

 9669. Biri Channel, Burias Island. June 2, 1909. Length 102 mm. 

 17059, 17060. Bisucay Island, near Cuyo. April 9, 1909. Length 108 to 114 

 mm. 



