ZOOLOGY. 
29 
54. ALGANSEA BICOLOR, Grd. 
General Report upon Fishes. 
Head, mouth, and eye of moderate size ; posterior extremity of maxillary extending to a 
vertical line drawn across the nostril. The isthmus is narrow. The anterior edge of the insertion 
of the ventral fins is somewhat in advance of the anterior margin of the dorsal. Scales large. 
Back and sides of a metallic bluish black tint, intermingled upon the lower half of the flanks 
with a golden hue ; the inferior region is pure white or yellow. 
List of specimens. 
Catalogue 
Correspond’g 
No. of 
Sex and 
Locality. 
When 
Collected by— 
Nature of spe- 
number. 
number. 
specimens. 
age. 
collected. 
cimens. 
192 
2750 
i 
Adult. 
Klamath Lake, Oregon_ 
1855 
Dr. Newberry... 
Alcoholic. 
55. LAVINIA EXILICAUDA, B. & G. 
Plate LIV, figs. 1-4. — General Report upon Fishes. 
Body very much compressed, deep upon its middle ; peduncle of tail rather slender ; head 
small; eye moderate ; posterior extremity of maxillary not reaching the anterior rim of the 
orbit. Isthmus small. Insertion of ventral fins situated in advance of the anterior margin of 
the dorsal; pectorals rather small; caudal deeply furcated. Reddish brown above, silvery grey 
on the sides, the scales being minutely dotted upon their margin ; beneath yellowish. 
The “Herring” of the California fishermen. 
List of specimens. 
Catalogue 
number. 
Correspond’g 
number. 
No. of 
specimens. 
Sex and 
age. 
Locality. 
When 
collected. 
Collected by— 
Nature of spe¬ 
cimens. 
209 
2766 
2 
Adult. 
San Joaquin river_ 
1855 
Dr. Newberry... 
Alcoholic. 
56. TIGOMA BICOLOR, Grd. 
General Report upon Fishes. 
Body anteriorly compact, diminishing posteriorly ; head well developed ; mouth large ; pos¬ 
terior extremity of maxillary extending to a vertical line drawn between the anterior rim of 
the eye and the nostril; eye moderate. Origin of ventral fins placed slightly in advance of the 
anterior margin of the dorsal. Scales large. Dorsal region bluish grey ; sides and belly silvery 
white, sometimes golden. 
List of specimens. 
Catalogue 
number. 
Correspond’g 
number. 
No. of 
specimens. 
Sex and 
age. 
Locality. 
When 
collected. 
Collected by— 
Nature of spe¬ 
cimens. 
234 
2788 
2 
Adult. 
Klamath Lake, Oregon— 
1855 
Dr. Newberry... 
Alcoholic. 
