DISCUSSION OF SPECIES AND THEIR DISTRIBUTION. 353 



I. Three dorsals and two anal tins — Continued. 



2. Lower jaw longest. Barbel absent or rudimentary. 



((. Vent in vertical from space between first and second dorsal. 



Teeth of upper jaw equal POLLAl mis 



onicr row of teeth in upper jaw largest Bobkogadus 



6. Vent in advance of vertical from origin of first dorsal. 



First anal very long. Second dorsal small Ml( R0ME6I8TH S 



II. Dorsal tins two. anal one. 



A. Neutrals narrow, filamentous, Id- or tri-radiate Vhiji inn 



1. First dorsal with 8-10 rays I'iiyc is 



L'. First dorsal of 5 rays :. .L.EMoxkma 



H. Vontrals broad, with5-8rays. 



1. Anal tin entire. Mouth terminal Lotinw 



a. Vomer with teeth; palatines toothless. A barbel. 



All teeth villiform. 



Head not compressed. Ventrals narrow [LOTA.] 



Head soinew hat compressed. Ventrals broad [Saulo i \ | 



Vomer and mandibles with enlarged teeth M.OLVA 



b. Vomer and palatines toothless. 



Teeth in jaws villiform, equal. Barbel Phtsii 



An outer series of strong curved teeth in each jaw. No barbel Uealeptus 



An outer series of strong teeth in lower jaw. Barbel Dot i i i \ 



2. Anal deeply notched or In two parts. Mouth inferior or subinferior tforina 



a. Anal in two parts. 



Teeth eardiform, in hand in upper jaw Mora 



b. Anal more or less deeply notched. 



Teeth on vomer. Barbel. 



Snout obtuse. Bones of head firm Lepidion 



Snout produced. Bones of head cavernous, with large muciferous cavities.. Ajstimora 

 No teeth on vomer. No barbel. Anal in two connected divisions. 



Snout obtusely conical. Mouth wide, nearly terminal HaLAJBGYREUS 



C. Ventral rays 5 or more, elongate, exserted. 



1. Ventral rays 5, very elongate, the three median ones with lanceolate tips. 



a. A large abdominal cone Eretmophorus 



2. Ventral rays 7, some of them slightly prolonged and with rounded heads. 



b. No abdominal cone. Hypsirhynchus 



III. Second dorsal and anal continuous with caudal. No barbel \felanonina 



A. No teeth on vomer and palatines. 



1. Jaws with hands of small teeth, with an outer row of larger ones Stuixsia 



B. Teeth ou vomer and palatines iu narrow strips. 



1. Jaws with teeth in villiform hands. 



a. Tail loug and. tapering Melani inus 



IV. First dorsal composed of a single ray and a baud of fringes. Second dorsal and anal distinct On inn 



A. Barbels three. 



1. Snout without cirrus Onus 



B. Barbels four. 



1. Snout with cirrus Khixcixkmis 



V. Dorsal and annal tins single. 



A. Ventrals well developed Brosmiina 



1. Teeth on vomer and palatines. 



a. Teeth in upper jaw in narrow hand. A barbel Brosmii 3 



2. N T o teeth on vomer and palatines. 



a. Teeth in jaws biserial. Xo barbel BROSMICULUS 



GADUS, Abtedi. 



Gadus, Artedi, Genera Piscium, 1788, xix. — Lixx.i:rs, Syst. Nat., ed. x, 1758, 252. — Bonaparte, Fauna Italics, 

 fuse. SA, 1838. 



Gadoid fishes with 3 dorsal ami two anal fins, the anterior dorsal being but slightly 



elevated. Head large, oblong-, runic, and pointed; the snout at least twice as long as the 

 eye, the maxillary reaching past the front line of the eye. Month large. Barbel well de- 

 veloped. Ventrals normal. Lateral line pale. 

 19868— No. 2 23 



