PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 265 
wards, concealed in the skin. A concealed downward-directed spine 
below this. A downward-directed spine on front of opercle below. 
Skin comparatively thin and loose. Lateral line complete and contin- 
TOUS. 
Dorsal fins connected by a membrane about half the height of the first 
dorsal. Dorsal spines low and weak, nearly uniform in height, the mid- 
dle spines very slightly higher than the others, the highest less than the 
diameter of the eye, the two anterior close together. The spines all 
very slender. The enveloping membrane very thick. 
Soft dorsal nearly twice as high as the spinous part. Anal about as 
high as second dorsal, its rays mere robust. Pectoral fins rather broad 
and short, strongly procurrent below, the lower rays thickened. Long- 
est rays reaching past vent to beginning of second dorsal. No trace of 
ventral fins, either externally or under the skin. 
Fin rays: Dorsal IX or X-18 or 19; A. 13; P. 16. 
Anal papilla very small. Six pyloric ceca. Intestines short, about 
as long as body, with one flexure. Stomach filled with Chiton, Patella, 
small Crustacea, snails, and worms. 
Coloration olivaceous, usually rather dark, and shaded with greenish, 
but sometimes with whitish saddle-like blotches, one on each side of the 
head, one on preopercle, one at front of dorsal, one most conspicuous 
opposite the junction of the two dorsals, and two smaller ones under sec- 
ond dorsal. On most of the specimens these markings are but faintly 
indicated. Belly somewhat dusky. Lips, in most specimens, edged with 
vermilion, especially the lower. 
Spinous dorsal fin dusky, black in the middle and in front above, with 
a conspicuous edging of bright crimson. This marking is rarely faint or 
obsolete. Soft dorsal, anal, and caudal dusky, edged with paler. Pec- 
toral dusky, edged with paler, and slightly barred at base, especially in 
the paler specimens. 
This species is known to us from about 200 examples, from two to four 
inches in length, obtained by us at Waadda Island, in Neeah Bay, near 
Cape Flattery, at the entrance to the Straits of Juan de Fuca. It is 
found in the greatest abundance at this locality under rocks between 
tide-marks. It is less active in its movements than the species of Oligo- 
cottus, and unlike them it is often found out of the water, left in damp 
places under the rocks by the receding tide. 
The following species have been obtained by us in this locality, which 
is the richést in rock-pool fish of any which we have anywhere seen: 
Xiphister mucosus, Murenoides letus, 
Xiphister rupestris, Apodichthys flavidus, 
Xiphister chirus, Apodichthys fucorum, 
Ascelichthys rhodorus, Oligocottus globiceps, 
Gobiesox reticulatus, Oligocottus maculosus, 
Anoplarchus atropurpureus, Scytalina cerdale. 
