420 DE. GiJNTHER ON THE FISHES OF CENTEAL AMEEICA. 



fifths of the length. The head forms about a quarter, and the caudal fin about a sixth of 

 the total length. . . . The dorsal is considerably produced at the sixth ray, which passes 

 behind the rounded posterior margin. . . . Brownish, margined with light on each scale. 

 A very dark brown band girdles the breast behind the pectoral and ventral fins." . . . 

 Obtained by Capt. Dow at San Salvador. 



43. Upeneus tetraspilus. (PI. LXVI. fig. 1.) 



Giinth. Proc. Zool. Soc. 1864, p. 148. 



D. 8|9. A. 7. L. lat. 33. L. transv. 2 6. 



The height of the body equals the length of the head, and is contained thrice and 

 two-fifths in the total (without caudal) ; the width of the interorbital space is two- 

 thirds of tlie length of the snout. Teeth in both jaws in two series, the outer series of 

 the upper jaw being formed by very obtuse and partly confluent teeth. The maxillary 

 is dilated and rounded behind, and bent upwards into a sort of hook ; the barbels 

 extend to the vertical from the root of the pectoral. The third and fourth dorsal 

 spines are subequal in length, longer than the second, and nearly three-fourths of the 

 length of the liead. Greenish olive above, each scale above and below the lateral line 

 with a large pearl-coloured spot ; sides yellow ; a rose-coloured band on each side of the 

 belly. A large blackish blotch on the lateral line, behind the hind part of the spinous 

 dorsal fin. A second smaller blackish spot behind the orbit ; the latter is sometimes 

 very indistinct. 



Two specimens, 8^ inches long, were collected by Messrs. Dow and Salvin on the 

 Pacific coast of Panama. 



This species would belong to the division which has been called Mulloides. 



44. Upexeus graxdisquamis. 



Gill, Proc. Acad. Nat. Sc. Pliilad. 18G3, p. 168. 



This species, which belongs to Bleeker's division Upeneiis, is described thus : — 

 D. S|g. A. 7. L. lat. 30. L. transv. 2i/5. 



The greatest height is contained four times in the length to the end of the median 

 caudal rays, and four times and a half in the total. The head equals the height, and is 

 itself longer than high, the profile in front of tlie eyes rapidly declines downwards, and 

 is nearly rectilinear. The diameter of the eye enters tlirice and a half in the head's 

 length, and the height of the preorbitar twice and three-fourths. The supramaxillar 

 ends at the vertical from the front of the eye. Tlie teeth in front of the upper jaw are 

 biserial ; below uniserial. The first dorsal fin is highest at the third spine, and there 

 equals the head in front of the prseopercular margin ; the first is exceedingly short, and 

 the second and fourth nearly equal, little shorter than the third ; all the spines are very 

 slender towards the ends. The distance of the second from the first dorsal enters once 



