20 
ZOOLOGY. 
30. XIPHIDION MUCOSUS, Grd. 
General Report upon Fishes. 
Three lateral and one abdominal mucous ducts. Head subconical; mouth large ; posterior 
extremity of maxillary hone extending to a vertical line drawn across the posterior rim of the 
orbit. Ground color olivaceous, clouded or maculated with blackish brown. Two postocular 
dark vittoe crossin the cheek. 
List of specimens. 
Catalogue 
number. 
No. of 
specimens. 
Sex and 
age. 
Locality. 
When 
collected. 
Collected by— 
Original 
number. 
Nature of spe¬ 
cimens. 
493 
17 
Adult & 
young. 
S. Farallones, Cal._ 
1856 
Lieut. Trowbridge_ 
Alcoholic. 
31. CEBIDICHTHYS VIOLACEUS, Grd. 
Plate XXV&, figs. 4 and 5. — General Report upon Fishes. 
Upper surface of head narrow, declivous laterally ; a fleshy crest along the cranial ridge. 
Mouth large ; posterior extremity of maxillary bone extending to a line drawn across the pos¬ 
terior rim of the orbit. Origin of anal fin situated opposite the anterior margin of the soft 
dorsal. Ground color uniform brownish violet; an occipito-ocular vitta of deep purplish violet; 
two other vittse of the same hue extend—one from the postero-inforior rim of the orbit, the other 
from the anterior rim—obliquely backwards, across the cheek and opercular apparatus. 
List of specimens. 
Catalogue 
No. of 
Sex and 
Locality. 
When 
Col C( .ed by— 
Original 
Nature of spe- 
number. 
specimens. 
age. 
collected. 
number. 
cimens. 
497 
i 
Adult 
San Francisco, Cal.. 
1856 
Dr. Ayres_ 
28 
Alcoholic. 
32. LUMPENUS ANGUILLAKIS, Grd. 
Plate XXV6, figs. 1-3. — General Report upon Fishes. 
Head slender, continuous with the outline of the body ; gape of mouth slightly oblique ; pos¬ 
terior extremity of maxillary bone extending to a vertical line drawn midway between the 
anterior rim of the orbit and the pupil. Origin of dorsal fin situated opposite the base of the 
pectorals. Pectorals and caudal spear-shaped. Greenish olive, upper regions maculated; caudal 
fin transversally barred. 
List of specimens. 
Catalogue 
number. 
No. of 
specimens. 
Sex and 
age. 
Locality. 
When 
collected. 
Collected by— 
Original 
number. 
Nature of spe¬ 
cimens. 
507 
i 
Adult. 
1855 
Dr. Newberry_ 
Alcoholic. 
508 
i 
1855 
23 
