52 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxiv. 
the dorsal. Pectoral pointed; upper edge of fin without filaments. 
Ventrals free posteriori}^ extending to vent. 
Body with 6 snnxll, dark spots along the sides; the anterior one 
at upper edge of gill opening; the posterior on base of caudal tin; 
branchiostegal membranes edged with dusk}'; each scale on head and 
body with a dusky margin. Dorsals and caudal with small black 
blotches arranged in wavy lines; anal broadly l)ordered with dusky; 
pectorals and ventrals with but little dusky color. 
The species is represented by a single specimen, 4A millimeters long, 
from Nagasaki. It is recorded as type No. 6440, Leland Stanford 
Junior University Museum. 
(Named for Keinosuke Otaki, professor in the Imperial Military 
Academy of Tokyo, a former student of Stanford University, who 
accompanied us in our travels through northern flapan, and to whom 
we are indebted for many favors.) 
9. GOBIUS (Artedi) Linnaeus. 
6ro6ms Aktedi, Genera, 1738, p. 28 (ni/jcr). 
GoblusjA-ssjEVS, Syst. Nat., 10th ed., 1758, p. 262 {niger). 
Body o])long, compressed behind. Head oblong, moderately 
depressed; the snout rounded. Eyes large, anterior, close together; 
oporcles unarmed. Mouth moderate, not greatly oblique, the chin not 
prominent. Teeth conical, in few series, none of them canine. Tongue 
not notched; isthmus broad. Skull depressed, abruptly widened behind 
the eyes and without distinct median keel. Scales moderate, ctenoid, 
cheeks naked, no barbels; no fleshy flaps on shoulder girdle. Dorsal 
with (3 slender spines and al)out 10 soft rays. Anal short; ventrals fully 
united, not adnate to the belly; pectorals with free, or silk-like rays 
above; caudal fin obtuse. 
Species few, but widely diffused; found in all wtirm seas. 
(Gobius, the gudgeon, or other small fish.) 
lo. GOBIUS PCECILICHTHYS Jordan and Snyder, new species. 
Head 3^ in length; depth 5; depth of caudal pediuicle '2^ in head; 
eye 3f ; snout 2^; maxillary 2f; D. VI-10; A. D; P. 18; scales in lateral 
series 37, in transverse series 13. 
Body rather thickset; cylindrical anteriorly; the caudal peduncle 
compressed. Head as broad as body. Eyes large; directed laterall}^; 
the upper edges projecting slightly, making the interorbital space con- 
cave. Snout ])lunt, rather acutely rounded. Jaws eqttal; lips wide, 
the lower forming a broad fold over the upper at their union; maxil- 
lary entirely concealed, extendijig to a vertical passing between pupil 
and {Ulterior margin of orbit. Teeth simple, in rather broad bands on 
jaws, the outer ones somewhat enlarged. Tongue broad anteriorly, 
