174 
U. S. P. R. R. EXP. AND SURVEYS-ZOOLOGY-GENERAL REPORT. 
Formula of the fins : 
Male: Br. YI: V; D IX, 21 ; A III, 10 + 15 = 25 ; C 3, 1, 6, 6, 1, 2 ; V I, 5 ; P 20. 
The scales are a little higher than long, in that respect differing from those both of E. 
jacksoni and E. cassidii, and, moreover, to he distinguished from the latter by a smaller number 
of radiating furrows upon their anterior section. The dorsal furrow commences under the second 
ray of the soft dorsal, terminating under the sixteenth ; the sheath above it is composed of two 
rows of scales anteriorly, and of one posteriorly. 
The ground color is dusky brown above, yellowish brown beneath, with cloudy patches of 
reddish brown. The pectorals are yellowish, the dorsal, caudal, anal, and ventrals purplish 
and yellowish ; a yellow streak is observed along the base of the soft portion of the dorsal. 
This species inhabits the bay of San Diego, together with the preceding species. 
Plate XXX, fig. 1, represents a male specimen of Embiotoca ivebbi, size of life. 
Fig. 2 is a section across the line of greatest depth. 
Fig. 3, a scale from the dorsal region. 
Fig. 4, a scale from the lateral line. 
Fig. 5, a scale from the abdominal region. 
Figs. 3, 4, and 5 are magnified. 
List of specimens . 
Catal. 
No. 
No. of 
spec. 
Sex and 
age. 
Locality. 
When collected. 
Whence obtained. 
Nature of specimens. 
Collected by— 
545 
2 
Adult.. 
San Diego, Cal .... 
1853 
Lieut. Trowbridge . 
Alcoholic. 
A. Cassidy.. 
4. EMBIOTOCA LINEATA, Grd. 
Plate XXXI and Plate XXYI, Figs. 5 & 6. 
Spec. Chau. —Body sub-elliptieally elongated. Anal fin elongated, with external margin nearly straight, diminishing gradually 
in depth posteriorly, its origin being opposite to the sixth articulated ray of the dorsal. Tip of pectorals reaching a vertical 
line intersecting the base of last but one dorsal spine. Eyes of medium size. Posterior extremity of maxillary even with the 
vertical of anterior rim of orbit. Frontal region slightly depressed above the eyes. Branchiostegals five in number. Sixty-two 
scales in lateral line. Ground color of upper region dark olive or reddish brown ; reddish yellow beneath. Sides of abdomen 
with light longitudinal stripes intersecting the point of union of the rows of scales. Anal deep purple, with a yellowish vitta at 
its base. 
S yn. —Embiotoca lineata , Grd. in Proe. Acad. Nat. Sc. Philad. VII, 1854, 134, and, 151; also, VII, 1855, 320. 
The head constitutes the fourth of the length, excluding the forked portion of the caudal fin. 
The snout is sub-conically rounded, the angle of the mouth, or rather the posterior extremity 
of the maxillary extending to a vertical line drawn immediately in advance of the orbit. The eye 
being of medium size, its diameter enters four times in the length of the side of the head. The 
nostrils are placed nearer to the eye than to the end of the snout. The scales on the cheeks 
constitute three distinct sub-concentric rows, the innermost being the largest; two scales 
indicate a fourth row upon the concavity of the preopercle. The opercle is higher than broad, 
and covered with about six obliquely vertical rows of scales extending downwards upon the 
sub-opercle, which is closely united to the former. Upon the interopercle the scales are much 
