338 GADID^. 



the eye, with the lower jaw prominent. The height of the body is 

 less than the length of the head, and two-ninths of the total (without 

 caudal). The vent is situated vertically below the last rays of the 

 first dorsal. Anal fins not continuous, close together. Caudal emar- 

 ginate. The first anal is not much longer than the second dorsal. 

 Axil of the pectoral with a black spot superiorly. 



Christianiafjord. 

 a. Seven inches long. Norway. Presented by Dr. Esmark. 



14. Gadus productus. 



Merlangus productus, Ayres, Proc. Calif. Acad. 1855, p. 64. 

 ? Horaalopomus trowbridgii, Girard in Proc. Acad. Nat. Sc. Philad. 

 1856, p. 132, and U. S. Pac. R.R. Exp. Fish. p. 144 pi. 40 a. figs. 1-4. * 



D. 11 I 22 I 18. A. 21 I 19. V. 8. L. lat. 140. 



The height of the body is contained seven times and a half in the 

 total length, the length of the head four times. Lower jaw the 

 longest ; the maxillary extending to below the centre of the eye. 

 Eyes large, their diameter contained not quite five times in the length 

 of the head, distant a little less than two diameters from the tip of 

 the lower jaw ; interval between the eyes a little greater than one 

 diameter. The first dorsal is separated from the second by an inter- 

 space, whilst the second and third and the anals are close together. 

 The second dorsal is twice and a half as long as the first, and equal 

 in length to the first anal. Lateral line dark. (Ayres.) 



Coast of California. 



15. Gadus poutassou. 



Gadus merlangus, Risso, Ichth. Nice, p. 115. 



poutassou, Risso, Eur. Merid. iii. p. 227. 



Merlangus albus, Yarr. Brit. Fish. 2nd edit. ii. p. 247, 3rd edit. i. p. 561. 

 Gadus potassoa, Diihen, Vet. Akad. Hcindl. 1844, p. 88. 

 Kidmund, Esmark, Naturf. Mote i Christ. 1844, p. 230. 

 Gadus nielanostomus, Nilss. Skand. Faun. iv. p. 556. 



D. 12-13 I 13-14 I 24. A. 36-38 | 24-25. 

 Barbel none. Lower jaw longest ; teeth in the outer series strong- 

 est. Body rather slender. The vent is situated vertically before the 

 first dorsal. Dorsal fins separated by great interspaces, the two an- 

 terior short. A black sj)ot superiorly in the axil of the pectoral. 

 Coasts of Europe. 



C. Lower jaw longest; teeth in the upper jaw of equal size (PoUachius). 



16. Gadus pollachius. 



Pollack. 



Asellus Hvitingo-Pollachius, WiUughhy, p. 167 ; Ray, Syn. p. 53. 



Gadus, sp., Artedi, Synon. p. 35. no. 3 ; Genera, p. 20. no. 3 (incoiTect 



descript.). 

 Gadus poUachius, L. Syst. Nat. i. p. 439 ; Bl. Fische Deutschl. ii. p. 171. 



taf. 68 ; Bl. Schn. p. 10 ; Lacep. ii. p. 417 ; Walb. Art. iii. p. 127 : 



* Formerly incorrectly referred to the Acanthopterygians. 



