Jordan and Evcrmann. — Fishes of North America. 1775 



rr. Pectorals reacliing vent ; A. Ill, 8 ; dusky above, with 

 faint traces of darker blotches along back. 



ALUTUS, 2193. 

 00. Supraocular spines absent, bodj' rather elongate; A. Ill, 7; color 

 chiefly red. prorigek, 2194. 



RosicoLA (roseus, red; colo, to inhabit; living in the zone of red alg<Te) : 

 ij. Lower jaw little projecting; scales moderate, lateral line 45 to 55; A. HI, 7, 

 or III, 6. 

 ». Supraocular spine present ; A, III, 7 ; color red. 



t. Scales on mandible smooth ; color chiefly orange. pinniger, 2195. 

 tt. Scales on mandible very rough; color chiefly brick red. 



u. Color above, deep vermilion, mottled with flesh color on sides; 

 belly light red. 

 V. No spines below eye. miniatus, 2196. 



vv. Spines present below eye. aleutiaxus, 2197. 



MM. Color reddish orange, much mottled on back and upper part 

 of sides with dark brown. atrorubens, 2198. 



«s. Supraocular spine wanting; interorbitiil space but little convex; man- 

 dible with a few smooth scales ; color olivaceus. A. Ill, C; tympanic 

 spine usually absent. atrovieens, 2199. 



EOSEBASTES (^u?, dawn ; Sebastes) : 

 aa. Interorbital space flat or slightly concave, of medium width ; mesethmoid processes 

 but little or not at all elevated, ventral process of basisphenoid rudimentary. 

 Cranial ridges and spines moderately strong. Lower jaw moderately or not 

 much, sometimes not at all, projecting; gill rakers usually long and slender; 

 A. Ill, 6, to III, 8. Deep-water species. 

 w. Base of skull strongly curved, supraocular spine absent. 

 X. Parietals not meeting, lower jaw somewhat projecting. 



y. Gill rakers 10-f 22: dark bars on sides faint, becoming obsolete with 



age. SAXicoLA, 2200. 



yy. Gill rakers lO-f- 21, slender, 2^ in orbit; no distinct dark cross bars. 



CEAMERI, 2201. 



yyy. Gill rakers 10 -f 27 ; 2 dark half bars on side conspicuous and per- 

 sistent. semicinctus, 2202. 



XX. Parietals meeting; premaxillaries with prominent dentigerous knobs, 

 between which the tip of lower jaw fits. diploproa, 2203. 



WW. Base of skull nearly straight; supraocular spine present, quite strong; 

 coronal and nuchal spines usually present. 

 z. Second anal spine much longer and stronger than third. A. Ill, 6; 

 pores of lateral line about 29. aurora, 2204. 



zz. Second anal spine little or not at all longer than third. A. Ill, 7 or 8. 

 Mouth and gill cavities more or less black, melanostomus, 2205. 

 zzz. Second anal spine equaling third in length. A. Ill, 7. Lining of 

 mouth and gill cavity largely black. introniger, 2206. 



aaa. Base of skull straight or nearly so; interorbital space as a rule concave and nar- 

 row; the cranial ridges and spioes well developed. Mesethmoid processes 

 directed upward ; ventral process of basisphenoid well developed ; skull com- 

 paratively thin. Gill rakers usually short. 

 Sebastomi-s {Sebaxtes; wmos, slioulder) : 

 a'. Supraocul.ir spine present; interorbital space concave. 



b'. Second anal spine scarcely longer than third ; color red, nearly plain. Cranial 

 ridges broken and armed with accessory spines ; interorbital space nearly 

 flat in adult (ridges smooth, interorbital space concave in young, as in 

 8ebastodes rosaccus). ruberrimus, 2207. 



66'. Second anal spine much longer, usually stronger, than third . Cranial ridges 

 smooth. 

 C. (Jolor more or less rosy, with 3 to 5 round blotches of pink on sides of 

 back. 

 d'. Dorsal spines usually low, the highest less than i the length of 

 head; no small green spots on sides of back. 



