1. 6ADUS. 327 



**** Two dorsal, one anal, and a separate caudal. 



Ventrals well developed, with broad base ; strong 

 teeth in the jaws and on the vomer ; barbel 

 "one 6. Merluccius, p. 344. 



Ventrals with flat base and several rays ; vome- 

 rine teeth none ; jaws with an outer series of 

 stronger teeth. A barbel 7. Lotella, p. 346. 



Ventrals with flat base and several rays ; vome- 

 rine teeth none ; teeth in the jaws villiform, 

 of equal size. A barbel 8. Physiculvs, p. 348. 



Ventrals with flat ba.'ie and several rays ; vome- 

 rine teeth none. The first dorsal "well deve- 

 loped. Barbel none 9. Uraleptus, p. 349. 



Ventrals with styliform base and several rays ; 

 vomerine teeth none ; teeth in the jaws vUli- 

 form, of equal size. A barbel 10. Pseudophycis, p. 350. 



Ventrals reduced to a bifid filament ; first dorsal 



with 8-10 rays 11. Phycis, p. 351. 



Ventrals reduced to a bifid filament ; first dorsal 



with five rays 12. L.ejionema, p. 356. 



Ventrals with flat base and several rays ; vome- 

 rine teeth. First dorsal with four rays 13. Haloporphyrus, p. 358. 



The first dorsal well developed, with 10-13 rays ; 

 ventral composed of several rays. Head not 

 compressed. Vomerine teeth ; all the teeth 

 viUiform 14. Lota, p. 359. 



The first dorsal well developed, with 10-16 



rays; ventral composed of several rays. Head 



not compressed. Several large teeth on the 



mandible and on the vomer 15. Molva, p. 361. 



The first dorsal well developed, with six rays ; 



head compressed. Vomerine teeth. A barbel. 16. Hvpsiptera, p. 362. 

 The first dorsal reduced to a band of fringes ; 



head compressed 17. Cocchia, p. 363. 



The first dorsal reduced to a band of fringes ; 



head not compressed 18. Motella, p. 364. 



The first dorsal rudimentary, short. A barbel... 19. Eaniceps, p. 367. 

 The first dorsal reduced to a single ray on the 

 occiput 20. Bregmaceros, p. 368. 



***** One dorsal and one anal. 



Ventrals composed of several rays; vomerine 



and palatine teeth 21. Brosmius, p. 369. 



1. GADUS*. 



Gadus, sp., Artcdi, Genera, p. 19. 



Gadus et Merlangus, Ci(v. Ri'tpw Aniin. 



Monia et Merlan<rus, JRmo, Eur. Merid. iii. pp. 225, 227. 



Morrliua et Merlangus, Auct. 



Body moderately elongate, covered with small scales. A separate 



* 1. Gadus gracilis, Tiles. Mem. Ac. Sc. SI. Petersh. ii. 1810. p. 354. tab. 18.— 

 Kamtsehatka. [2. 



