428 PLEURONECXID.^. 



the diameter of which is one-fifth or one-sixth of the length of the 

 head. The maxillary has its dilated portion scaly, and extends to 

 behind the middle of the eye ; its length is two-fifths of that of the 

 head. The upper jaw has three pairs of stronger teeth in front, and 

 a series of small ones laterally ; the lower has about fifteen teeth on 

 each side. The dorsal fin terminates at a short distance from the 

 caudal ; its anterior rays are shorter than those of the posterior 

 fourth of the fin, which are the longest, being contained twice and a 

 third in the length of the head. Caudal fin rather prolonged, rounded, 

 its length being contained five times and a half in the total. Pectoral 

 two-thirds of the length of the head. The ventral extends beyond 

 the origin of the anal. GUI-rakers lanceolate, disposed at moderate 

 distances, half as long as the eye. Greyish-brown, with smaller and 

 larger subocellated blackish-brown spots ; fins finely spotted with 

 brown ; a series of larger distant spots along the basal half of the 

 dorsal and anal fins. 

 Hab. ? 



a-c. From 8 to 9 inches long. From the Haslar Collection. 



9. Pseudorhombus triocellatus. 



Russell, i. p. 59. pi. 76. 



Pletironectes triocellatus, Bl. ScJin. p. 145. 



Rhombus triocellatus, Cuv. Rtgne Anim, ; Bleek. Sumatra, iii. p. 528. 



D. 69. A. 51. L. lat. 65. 



The height of the body is contained once and three-quarters in 

 the total length (without caudal) . Scales cihated ; interorbital space 

 naked, very narrow. Snout with the jaws subequal anteriorly, as 

 long as the eye, the diameter of which is two-ninths of the length of 

 the head. The length of the maxillary is contained twice and a 

 third in that of the head. Teeth minute, of equal size, in a single 

 series. Front margins of the orbits nearly on the same level. Fin- 

 rays scaly : the dorsal fin terminates close by the caudal ; its ante- 

 rior rays are the longest, more than half as long as the head, and 

 equal in length to the pectoral. Gill-rakers very slender, more than 

 half as long as the eye, closely set. Erownish-olive : taU with three 

 dark-brown ocelli, edged with white, disposed in a triangle. 



East Indian Seas. 



a-h. Adult. From the Collection of the Zoological Society. 



10. Pseudorhombus pentophthalinus. 



D. 70. A. 54. L. lat. 75. 



The height of the body is contained twice in the total length 

 (without caudal), the length of the head thrice and a third. Scales 

 ciliated ; eyes separated by a mere ridge. Snout with tlie jaw's 

 equal anteriorly, rather longer than the eye, the diameter of which 

 is nearly one-fifth of the length of the head. The maxillary extends 



