120 



Pari III. — Twenty-sixth Annual Report 



The two hind lobes are short in callarias, fig. 90 ; aeglefinus, fig. 87 I 

 esmarki, fig. 97. 



The two hind lobes are about the same length as the anterior lobes — 

 merlangus, fig. 79 ; saida, fig. 78. 



The two hind lobes are fused together — virens, argenteus, fig. 92 ; ogac. 



The two hind lobes are fused in part of their extent — pollachius, 

 fig. 96. The two hind lobes are fused up to the point A. 



In the other species the hind lobes are bound together by mesentery — 

 callarias, fig* 90 ; aeglefinus, fig. 87 ; saida, fig. 78 ; mer- 

 langus, fig. 79 ; esmarki, fig. 97 ; luscus. 



The ovary is pigmented black — ogac, fig. 76. 



The oviduct in merlangus, callarias, and luscus is long. 



The oviduct is short in aeglefinus. 



Saida. — Vanhoffen found in the ovary of this form 12,700 eggs 

 measuring 5 mm. in diameter. The fish was obtained in 

 December at Karajak. In another fish obtained in the same 

 month the yolked eggs in the preserved fish are yellow, 

 resembling the egg of Sebastes marinus ; they measured '7 mm. 

 in diameter. 



Merlangus. — A full roe of a fish 30 cm. long contained the shrunken 

 remains of old eggs in the beginning of the oviduct. The 

 posterior lobes of this ovary were longer than the anterior 

 lobes. The full roe is of a deep orange colour. 



^Eglefinus. — The ripe roe is of a light orange colour ; it is thick 

 dorso-ventrally. 



Poutassou. — In the small specimens the ovary showed as two little 

 lobes close to the rectum. Fishes up to 17 cm. in length 

 had a minute ovary. In the last case the ovary contained 

 clear eggs measuring *05 mm. in diameter. 



XXIV. The Pyloric Ceca. 



The caeca are small, very numerous, closely arranged in a mat — 



aeglefinus, ogac, callarias, virens, pollachius. 

 Merlangus. — There is a large mass of caeca numbering from 33 to 90. 

 Poutassou. — The caeca were from 9 to 15 in number. 

 Argenteus. — The caeca were from 7 to 10 in number. 

 Saida. — The caeca were 24, 30, and 31 in number. 



XXV. The Skeleton. 



The skulls might be classified according to their length, but data are 

 not at present available which would give the maximum size 

 of the skull for each species. Any skull measuring 14 cm. in 

 length may belong to the following species : — Callarias, ogac, 

 virens, pollachius. The skulls of luscus, minutus, esmarki, 

 argenteus, saida, probably never reach 10 cm. in length, 

 The skull of whiting does reach and probably exceeds 10 cm. 

 in length. One poutassou which I received on loan from Mr. 

 Holt measured 37*9 cm. in length, and the skull probably 

 measured between 8 and 9 cm. in length. The two specimens 

 of this species described by Vinciguerra measured 35 cm. in 

 length. 



The Skulls, etc. — Callarias, virens, pollachius, Plates IV.-XI., Tiventieth 

 Annual Report ; luscus, minutus, esmarki, Plate X., Twenty -fourth 

 Annual Report ; aeglefinus, Plate IT. ; merlangus, ogac, poutassou, 

 argenteus, saida, Plate III. 

 The differences between the skulls of the various species cannot be 



