78 TELEOSTEL: ISOSPONDYLI. — XIII. 
184, C. labradoricus Richardson. SavuttT WHITE-FISH. 
Musquaw River Wuits-FisH. “ WaurtTine.” 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 4%; depth 44. D.11. A. 11. Seales 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 + 30; the 
cleft of the mouth 23 to 3} 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. ©. hoyi (Gill). Lake Moon-Eyg. Cisco or Lax 
Micuican. Head rather long, lower jaw barely included ; maxil- 
lary 3 in head to middle of pupil; eye very large, 34 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. 
Scales 7-75-7. L,12. Smallest and prettiest of our white-fishes, 
from Skaneateles L., N. Y., to L. Mich., in deep water. (To Dr. 
Philo R. Hoy, of Racine, Wis.) 
Jf. Scales more or less punctulate with darker. 
186. C. artedi Le Sueur. Laxe Herrine. Cisco. Micut- 
GAN Herring. 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). Buiuxz-rin. Body more robust than 
in C. artedi; 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 deep water. (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. TuLLisBEr. “Moncret WHITE- 
risH.” Head much as in C. nigripinnis; maxillary as long as 
eye; jaws equal when closed; eye as long as snout, 4}. Bluish, 
