114 
U. S. P. R. R. EXP, AND SURVEYS-ZOOLOGY-GENERAL REPORT. 
Tlie ventrals, long and filiform, are inserted nearly opposite the anterior margin of the dorsal; 
their tips do not reach the vent. The pectorals are broad and fan-like ; their extremities extend 
posteriorly to a line intersecting the vent. 
Br. Y: Y ; D XII, IT; A 19 ; C 6, 1, 5, 4, 1, 5 ; Y i, 2 ; P 12. 
The lateral line, from the upper edge of the branchial fissure, bends slightly upwards, and 
terminates abruptly under the eleventh dorsal ray. 
The ground color is yellowish brown or olivaceous, maculated with purple, the blotches or 
maculae upon the sides of the head and abdomen being rather sub-quadrangular. The fins are 
maculated also, the base and external margin of anal being yellowish. Upper part of head, 
snout, and ventrals, uniform deep purple. Belly olivaceous, unicolor. 
* 
References to the figures. —Plate XXYa, fig. 4, represents Blennius gentilis, size of life. 
List of specimens. 
Catal. 
No. 
No. of 
spec. 
Sex and 
age. 
Locality. 
When collected. 
Whence obtained. 
Nature of specimens. 
489 
i 
Adult.. 
Monterey, Cal__ 
1853 
Lieut. W. P. Trowbridge_ 
Alcoholic__ 
NEOCLINUS, Girard. 
Gen. Char. —Body elongated and much compressed, covered with rather small scales, cycloid in structure. The head is of 
moderate size, anteriorly obtuse, provided above with membranous flaps or tentacles. Teeth upon the premaxillaries, dentaries, 
front of vomer, and palatines ; a double row upon the anterior extremity of the jaws ; a single but conspicuous row along the 
palatine bones. Branchial apertures continuous under the throat; branchiostegals six on either side. One continuous dorsal 
fin. Caudal posteriorly rounded. Anal elongated. Ventrals, composed of three articulated rays and a rudimentary spine, 
inserted under the pectorals, or slightly in advance of them. Pectorals broad and rounded off. 
This genus is not without affinities with Clinus, hut the latter contains yet too great a 
diversity of species to make it a natural genus. It hears also a general’ resemblance to 
Opistognathus, hut the latter, besides the zoological characters peculiar to it, is furthermore 
provided with an air bladder, which is wanting in Neoclinus. 
NEOCLINUS BLANCHARDI, Grd. 
Blanchard’s Blenny. 
Spec. Char. —Mouth very large ; posterior extremity of maxillary extending to a vertical line drawn from the origin of the 
dorsal fin. Eyes sub-circular, well developed, upper region provided with two filiform tentacles. Origin of dorsal fin situated 
near the occiput and extending to near the caudal, with which it, however, does not unite. Anterior margin of the anal nearly 
equidistant between the extremity of the snout and the insertion of the caudal fin. Lateral line running from the upper 
portion of the opercle to about opposite the anal region. Color reddish brown, with darker fasciae, and two still darker ocellae 
upon the anterior portion of the dorsal fin. 
The head constitutes about the fourth of the total length, which measures nearly six inches 
and a quarter. The gape of the mouth is somewhat oblique upwards, the lower jaw protruding 
beyond the upper, and the posterior membranous extremity ol the maxillar bone extending to 
