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PROCEEDINGS OF THE NATIONAL MUSEUM. 
VOL. XXIV. 
its tip reaches to vent; A'cntral lin ;"> in head, placed directly beneath 
eye. 
Body covered with forked spinules; .skin lirmer and tighter than that 
of A. tride'Ds. Color black or dusky brown, with two (or three) large 
and several small jet-black spots on each side of body and dorsal tin; 
black streaks radiating from eye; a white blotch at the posterior base of 
second dorsal spine; minute white spots scattered on dor.sal tin; each 
caudal ray with a white spot a little below middle, forming a transverse 
row on the tin. Some specimens are almost perfectly black, hardly 
Antknnarhs nox. 
any marks being distinguishable. Belly and tip of pectoral, ventral, 
and anal tins dull dark gray; very short filaments from the tops of 
small white protuberances sparsely scattered over body ; arrangement 
of mucous tubes similar to that of A. fridens. 
This species differ from ^I. trldens in color, length of fins, especially 
that of dorsal and anal fins, and in having firmer and tighter integu- 
ment; second and third dorsal spines and soft dorsal without filaments. 
Our specimens, 6 in number, are from Wakanoura and Nagasaki. 
(iV^Ar, night). 
4. CHAUNAX Lo^Are. 
Chauna.r IjOwk, Trans. Zool. 8oe. Loud., Ill, 1846, \). 339 (pictus). 
Head verv large, depressed, cuboid. Mouth large, subvertical; jaws 
and palate with bands of small teeth. Skin with small, sharp spines. 
Spinous dorsal reduced to a small tentacle above the snout, retractile into 
a groove; soft dorsal moderate, low; anal short; ventrals small. Gills 
2i; no pseudobranchia\ Mucif erous channels very conspicuous, the lat- 
eral line prominent, undidate; anothei' seines of mucous tubes extending 
