2378 Bulleti7i //, United States National Museum. 



premaxillaries not protractile; gill openings wide, extending forward 

 below, the membranes free from the isthnuis, or at least forming a broad 

 fold across it. Dorsal fin entire, or more or less emarginate, the spines 

 slender; pectorals moderate; veutrals well developed, I, 3; no pyloric 

 c»ca; lateral line developed anteriorly. Species numerons, Inrking nnder 

 rocks and alga- in most warm seas ; some species in the lakes of northern 

 Italy. The European species in general are larger in size than ours, with 

 higher fins. (Blenmus, the ancient name, from /JXevva, slime.) 



Lu'OPHEYS (AeiTTO), to disappear ; b<f>pvi, eye-brow) : 

 a. Supraorbital cirrus wanting; snout not very blunt in profile. 



6. Posterior canine present in each jaw; dorsal sliglitly emarginate ; D. XII, 18. 



CABOLINUti, 2724. 

 BLENNIUS : 



aa. Supraorbital cirrus present ; profile of snout more or less blunt, 

 c. Canines strong, present in both jaws ; no nuchal cirri. 

 d. Dorsal rays XI or XII, 17 or 18. 



e. Supraorljital cirrus bifid; dorsal free from caudal. 



/. Supraorbital cirrus as long as head; dorsal emarginate; sides 

 spotted ; D. XI, 17. v UfOKUM, 2725. 



//. Supraorbital cirrus as long as eye and snout; dorsal continuous; 

 color olivaceous, with dark bars ; D. XI, 18. 



STEARNSI, 2726. 

 ee. Supraorbital cirrus bifid, nearly as long as head ; last ray of dorsal 

 joined to caudal ; sides with a network of blue lines ; D. XII, 18. 



FAVOSCS, 2727. 

 dd. Dorsal rays XII, 21 or 22 ; supraorbital cirrus long, fringed ; dorsal free 

 from caudal; cheeks with network of lines; body nearly plain. 



piLicoKXis, 2728. 

 cc. Canines short and stoutish, present in lowerjaw only (undescribed in truncatus 

 and in marmoreiig.) 

 g. Napewithoutcirrus; snoutabruptlydecurved; body robust, marbled ; D. 



XII, 20. MARMOREUS, 2729. 



gg. Nape with a cirrus ou each side. 



h. Dorsal and anal free from caudal. Nape with a filiform bifid tentacle 

 on each side; teeth undescribed; supraorbital tentacle simple; 

 color olive, with bright spots. 



TRUNCATUS, 2730. 



hh. Dorsal and anal with the last ray largely joined by membrane to 



caudal; nape with a small cirrus; posterior canines strong, 



in lowerjaw ouly; dorsal not notched; color uniform brown; 



D. XII, 13. VINCTUS, 2731. 



ggg. Nape with a comb of many close-set cirri on a fleshy crest; lower 



jaw only with short posterior canines; dorsal fin continuous, free 



from caudal ; D. XII, 16 or 17. cristatus, 2732. 



Subgenus LIPOPHRYS, Gill. 



2724. BLE\i\IUS CAROLINUS (Cuvier & Valenciennes). 



D.XII, 18; A. 17. Body rather long and slender, more elongat^^- than in 

 the European species, Blenmus pholis, more compressed, the head longer; 

 maxillary extending to opposite middle of eye; teeth \-l, with strong 

 canines on both jaws; gill membranes free from isthmus; no trace of 

 tentacles above eye; dorsal spines slender, a little lower than the soft 



