1936] Schults: Keys to Fishes 175 



18a. Back above lateral line evenly scaly; spinous dor- 

 sal emarginate, III-VII, 15; anal 14; pelvic fin 

 rays I, 3. Range: Puget Sound to San Diego, 

 California. Marine. Common. 



Rough-backed Sculpin 



232. Chitonotns pugetcnsis (Steindachner) 



18b. Back above lateral line with a series of enlarged 

 plates or scales, the space above and below this 

 naked. 



19a. Lateral line armed with a series of bony plates 

 which catch on the finger when the latter is run 

 forward; preopercular spines more than 3 (1 

 at the angle is long with from 2 to 4 strong 

 spines or barbs directed upward and 2 or 3 

 spines on the lower margin of the preopercle 

 which are directed downward). 



20a. Dorsal fin with 1 or more of the anterior 

 spines elevated and filamentous ; scattered 

 plates behind axil of pectoral fin; pelvic fin 

 rays I, 2. 



21a. First 2 dorsal spines filamentous, about 

 equally produced; dorsal series of plates 

 much longer than head, reaching end of soft 

 dorsal ; nasal filament present ; dorsal rays 

 X, 16 to 17; anal 14 or 15. Range: Alaska 

 to Santa Barbara Islands. Marine. Not rare. 



Long-rayed Sculpin 



..233. Tarandichthys filamentosus (Gilbert) 



21b. First dorsal spine filamentous, the 2nd little 

 if at all produced; dorsal series of plates 

 usually shorter than head, not reaching mid- 

 dle of soft dorsal; no nasal filament; dor- 

 sal rays X, 17 to 19; anal 15 to 17. Range: 

 Alaska to southern California. Marine. Not 



234. Tarandichthys tenuis (Gilbert) 



20b. Dorsal fin without filamentous spines ; no 

 plates behind axil of pectoral; preopercular 

 spine with 3 or 4 antler-like processes; pelvic 

 fin rays I, 2. 



22a. Dorsal series of scales continuous and joined 

 together behind soft dorsal fin; the lower 

 edge of preopercle with 2 small spines; the 

 lower one longest and sharpest pointing 

 downward and curved forward above a 

 smaller spine directed downward ; rarely an 

 obsolete spine above these 2 strong ones; 

 nasal spines well developed and nasal ten- 

 tacles present, slender. Range: Alaska to 

 Puget Sound. Marine. Common. 



235. Icclinus borealis Gilbert 



(=/. strabo Starks) 



