FISHES—EMBIOTOCOIDAE—ENNICHTHYS HEERMANNI. 
199 
List of specimens. 
Catal. 
No. 
No. of 
spec. 
Sex and 
age. 
Locality. 
When 
collected. 
Whence obtained. 
Nature of 
specimens. 
Collected by— 
551 
552 
2 
Adult.. 
Presidio, Oa.l............. 
1853 
Tit.. W.P. Trowbridge. t . T . . . 
Alcoholic. 
Lt. W. P. Trowbridge 
.do. 
1 
•.do.••. 
Humboldt Bay, Cal. 
1854 
553 
1 
..do.... 
Astoria., Oregon .......... 
1854 
2. ENNICHTHYS HEERMANNI, Grd. 
Plate XXXYIII; and, Plate XXYI, Fig. 9. 
Spec. Char. —General form sub-elliptical; snout sub-conical; mouth moderate ; posterior extremity of maxillary even with 
a vertical line intersecting the centre of the pupil. Eyes of medium size. Branchiostegals six. About sixty-two scales in 
lateral line. Back olivaceous, sides and abdomen silver and golden; flank with indistinct transverse bars or bands. Fins 
unicolor, yellowish and greyish. 
Syn. — Jlm'phistichus heermanni, Grd. in Proc. Acad. Nat. Sc. Philad. VII, 1854, 135. 
Ennichtliys heermanni, Grd. in Proc. Acad. Nat. Sc. Philad. VII, 1855, 323. 
The general form of the body is sub-elliptical, rather deep upon its middle. The greatest 
depth enters about twice and a half in the total length. The back is more regularly arched 
and the abdominal outline more regular than in E. megalops. 
The head constitutes the fourth of the total length, leaving out the furcated portion of 
the caudal fin. Its upper surface is less depressed than in E. megalops. The mouth is also 
much less oblique, hence the extremity of the maxillary extends more backwards, compared to 
the eye, than in E. megalops. The teeth are somewhat stouter than in the latter species. The 
tongue is large, broad, and thin. The eye is of medium size, sub-circular in shape; their 
horizontal diameter being contained about four times in the length of the side of the head, 
exactly once in advance of the anterior rim of the eye and twice posteriorly to it. The cheeks 
are covered with four sub-concentrical and irregular rows of scales. Six or seven oblique rows 
may be detected on the opercle. There are six well developed branchiostegal rays on either side. 
The spinous portion of the dorsal, formed of nine rays, is highest upon the fourth; the ante¬ 
rior three are the lowest. From the fourth spine the remaining ones gradually diminish to the 
ninth, which is a little shorter than the anterior articulated ray, thus causing a depression in 
the upper outline of the entire fin. The base over which the articulated rays extend is not 
twice the length of that of the spinous portion. Bifurcations of the second degree may be 
observed upon the middle rays. The base of the anal enters four times and a half in the total 
length. A row of small scales may be observed over its base. Its external outline is somewhat 
concave, and anteriorly there are three spiny rays shorter than any of the articulated ones. 
The latter exhibit traces of a subdivision of the second degree. The caudal constitutes a little 
less than the fifth of the entire length. The scales occupying its base are proportionally larger 
than in E. megalops. The longest rays subdivide four times. The insertion of the ventrals is 
situated under the vertical line of the second dorsal spine. The articulated rays of these fins 
subdivide three times, and the external spine is stout at the bqse and very acute upon its apex. 
The pectorals are well developed; their entire base is situated in advance of a vertical line 
