Jordan and Evermann. — Fishes of North Amejica. 2345 



gg. Caudal fln truncate; air bladder wanting; scales mi- 

 nute; teeth in jaws in more than 1 series; teeth 

 on vomer, none on palatines ; first 5 dorsal spines 

 lengthened and partly separated. Gibbonsia, 870. 

 ee. Shoulder girdle witliout upturned hook on its inner edge above. 

 h. Maxillary greatly developeil, reaching much beyond eye; 

 teeth on vomer and palatines; scales minute; soft dor- 

 sal long. Neoclinus, 871. 

 hh. Maxillary normal, not greatly expanded. 



i. Anterior part of lateral line normally formed; usual- 

 ly a comb of filaments at the nape, 

 j. Palatines without teeth; scales moderate or small, 

 38 to 110 in lateral line. 

 k. Teeth in jaws in 1 row only; teeth usually 

 on vomer, none on palatines; usually a 

 comb of filaments at the nape. 



Malacoctenus, 872. 

 kk. Teeth in jaws in more than 1 row, a band 

 of viUiform teeth behind the others; 

 teeth on vomer, none on palatines. 



I. Body oblong, the depth 3J to 4J in 



length ; a filament above the eye. 



Labrisomus, 873. 



II. Body elongate, the depth about 6 in 



length; no filaments above the 

 eye. Mnieepes, 874. 



jj. Palatines with teeth, those in jaws in more than 

 1 series ; scales large, 30 to 37 in lateral line ; 

 no nuchal filaments, 

 m. Head very broad, depressed; soft dorsal of 

 about 20 rays. Gobioclinus, 875. 



mm. Head moderate, not depressed; soft dor- 

 sal of about 8 rays. Starksia, 876. 

 ii. Anterior part of lateral line running on a series of 

 enlarged scales without visible pores; teeth in 

 more than 1 series in jaws; teeth on vomer and 

 front of palatines. Cbyptotrema, 877. 



dd. Dorsal with 1 short soft ray only; scales large; teeth in jaws in 

 more than 1 series; teeth on vomer, none on palatines. 

 n. Dorsal fin more or less deeply notched behind the third spine. 

 o. First 3 spines of dorsal very slender, close set, forming a 

 separate ribbon-shaped fln, which is much higher than 

 any of the spines in tlie second dorsal; anal spines 

 rather high; body strongly compressed, the snout 

 very sharp. Exeupes, 878. 



00. First 3 dorsal spines stifl', wide set, not remote from rest 

 of tin behind dorsal notch; anal spines short; body 

 more elongate, the snout less acute. 



AUCHENOPTERUS, 879. 



7m. Dorsal tin continuous, not notched. Paeaclinus, 880. 



Emmniin.e : 

 hb. Lateral line straight, close to the dorsal fin; scales small, cycloid; dorsal 

 notched, its anterior half of slender spines ; no cirri on bead ; ventrals thick- 

 isb, inserted slightly before pectorals; teeth in bands, the outer enlarged. 



Emmnion, 881. 



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