78 TELEOSTEI: ISOSPONDYLI. — XIII. 
184. C. labradoricus Richardson. SAuLttT WHITE-FISH. 
Musquaw River Wuaite-FisH. “ WuitinG.” Head com- 
pressed, rather long; mouth rather small, the jaws equal; maxillary 
to front of pupil; eye 44 in head; supraorbital narrow; D. high 
in front, its last rays short. Bluish, sides little silvery; fins dusky. 
Head 42; depth 44. D.11. A. 11. Scales 9-80-8. L. 20. 
White Mts. to Labrador and L. Superior; abundant N. 
aa. Lower jaw projecting; premaxillaries narrow, not vertically placed; pre- 
orbital elongate; gill rakers very long and slender, about X + 380; the 
cleft of the mouth 23 to 33 in the head. 
d. Body elongate, herring-shaped; scales small, uniform, the free edges 
convex. (Argyrosomus Agassiz.) 
e. Lower fins pale, or tipped with dusky. 
J. Scales brilliantly silvery, without dark specks. 
185. C. hoyi (Gill). Lake Moon-ryre. Cisco or LAKE 
MicniGan. Head rather long, lower jaw barely included ; maxil- 
lary 3 in head to middle of pupil; eye very large, 35 in head; lower 
jaw little projecting; gill rakers nearly as long as eye; fins low; 
free edge of D. very oblique. Color bluish, sides brilliantly silvery, 
as in Hiodon and Albula. Head 44; depth 43. D.10. A. 10. 
Seales 7-75-7. L.12. Smallest and prettiest of our white-fishes, 
from Skaneateles L., N. Y., to L. Mich., in Sree water. (To Dr. 
Philo Rh. Hoy, of Racine, W is.) 
jf. Scales more or less punctulate with darker. 
186. C. artedi Le Sueur. LAkreE Herrinea. Cisco. Micar- 
GAN Herrine. Maxillary 3} in head, reaching middle of pupil; 
eye 4to5in head. Bluish or greenish, sides silvery; scales and 
fins with dark specks. Head 44; depth 44. D.10. A. 12. Scales 
8-75 to 90-7. L.15. Great Lakes to Labrador; very abundant, 
usually in shoal waters, also land-locked in lakes of N. Ind. and 
Wis. (var. sisco Jordan), where it lives in deep water, spawn- 
ing near shore in December. (To Peter Artedi, the “father of 
ichthyology.’’) 
ee. Lower fins blue-black. 
187. C. nigripinnis (Gill). Buus-rin. Body more robust than 
in C’. ariedi; mouth large; eye 4 in head; teeth present, minute. 
Dark bluish, sides silvery, punctulate. Head 44; depth 33. D. 10. 
A. 12. Scales 9-88-7. L. 20. L. Mich., in ie wae (Lat., 
niger, black; pinna, fin.) 
dd. Body short, deep, compressed; the curve of back similar to that 
of belly; scales large, larger forwards, closely imbricated ; the 
free margin little convex. (Allosomus Jordan.) 
188. C. tullibee Richardson. TuLireer. “ MoncGret WHITE- 
FISH.” Head much as in C. nigripinnis; maxillary as long as 
eye; jaws equal when closed; eye as long as snout, 44. Bluish, 
