LARVAL AND POST-LARVAL TELEOSTEANS. 369 



the eye, and are well developed. The lower jaw still projects a little, 

 and the mouth has a downward curve. The eyes are symmetrical. 

 The tip of the notochord is bent upwards, and the caudal rays are 

 almost fully developed. 



The general appearance of pigment is very much the same as in the 

 last specimen. There are now three distinct barred regions in the dorsal 

 fin and two in the anal. The median dorsal bar lies exactly opposite the 

 anterior anal bar, while the posterior dorsal bar seems to be continued 

 across the body on to the anal fin. The two large separate dorsal fin 

 chromatophores have disappeared, and their place is occupied with the 

 median and anterior aggregates of chromatophores. Distinct dashes 





/" / 



Fio. 8. — Solea lascaris. Length 87 mm. Oithona Station, CXX. A. 8th Sept., 1913. 



Total depth 25 fms. Midwater haul. 

 Fig. 8a. — Chromatophores enlarged. 

 Del. E. Ford. 



of black pigment are present along the bases of the interspines dorso- 

 ventrally, but fewer in number and of larger size dorsally. Black 

 dots occur on the chin, along the abdominal margin and on the anal 

 fin, but these are obviously the centres of extremely delicate stellate 

 chromatophores. The caudal fin is weakly pigmented — a few chromato- 

 phores occurring near the base and along the lower rays. The specimen 

 is equally pigmented on both sides. 



Fig. 9. Length 9-5 mm. 

 The snout is larger than the diameter of the eye by about ^. The 

 greatest depth is slightly more than the preanal length. 

 Fin formula D ca. 89. 

 A ca. 71. 

 Vertebrse 94-ca. 38=ca. 47. 



The concavity of the snout and dorsal fin membrane is clearly V- 

 shaped. The mid brain has receded and on a level with the last third 

 of the orbit. The eyes are still symmetrical. The lower jaw is practically 



