138 KOTES ON THE RErRODUCTION OF TELEOSTEAN FISHES 



Solea lascaris. Risso. Sand sole. 



(?)Holt, K. W. L., Sci. Trans. 11. Duh. Soc, S. II., iv., 1891, p. 457, Pis. 



XLIX., L., Solea, Sp. i. Advanced cyg and larva. 

 (?)Holt, E. W. L., Ann. Mus. Mars., v., 1898, Fasc. II. Early and advanced 

 eijg referred, with above, to S. lascaris. 



S. lascaris was common enough in the Plymouth market in the 

 early part of 1897, but could not be found during the spawning season, 

 which, as I computed, would occur a little later than that of S. vulgaris. 

 The ovarian egg remains unknown, and I have no reason to think that 

 S. lascaris is represented among the few eggs of Solea entered in our 

 records. 



I have described and figured in the Annales two stages of a sole 

 egg taken at Marseilles. At an early stage of development the egg 

 does not essentially differ in the character and arrangement of its 

 globules from that of S. vulgaris, but as development proceeds the 

 originally minute globules tend to coalesce so as to form larger ones. 

 In this condition the egg appears identical with the Irish Solea Sp. i. 

 The dimensions agree closely. I have set forth in my Marseilles 

 paper the considerations which suggest that >S'. lascaris is probably 

 the parent of both forms. Other tow-net ova are provisionally 

 referred, in the same paper, to iS'. Kkinii and aS'. hispida. 



Gadus. 



The most abundant Gadus in the inshore waters of this district is the 

 pollack, G. jMllachiiis. The bib or blind and the pout (the names have 

 no constancy of specific application), G. luscus and G. minutus, are 

 commonest outside the Sound — the former about outlying rocks, the 

 latter on the Eddystone trawling grounds. The whiting, G. merlangus, 

 is at times abundant, but erratic in its distribution. The cod, G. 

 morrhua, is not very plentiful, while the haddock, G. wglefinus, and 

 the coal-fish or " roamer," G. virens, are decidedly exceptional. 



In spite of much that has been written about them, the young stages, 

 especially of those with which we are here concerned, are very ditficult to 

 distinguish one from the other. The ova approach each other closely in 

 dimensions, and the variations in this respect have not hitherto been 

 studied in a methodic manner. It is only possible, therefore, to identify 

 the ova mentioned in our records in a provisional manner. 



Gadus luscus. Will. Bib, Blind, Pout, Brassie. 



Cunniiighani, J. T., Journal M. B.Assoc., N.S., i., p. 46, Fig. 35: Tow-net egg and 

 larva. P. 375: Dimensions of ripe egg. 



Cunningham provisionally identified with this fish tow-net ova, 

 ri3 mm. in diameter, taken on January 20th, 1888. Pipe ova taken 



