152 PROCEEDINOS OF THE NATIONAL MUSEUM. vol. xxvii. 



produced angles, but not in spines, their upper edge denticulate, as is 

 the entire supraorbital rim. A short slit behind last gill arch. Gill 

 rakers verj" small and blunt, 9 or 10 of them on anterior limb of arch. 

 A tentacle on middle of mandible below, and a smaller one midway 

 between it and tip of mandible. Lower parts of head and isthmus, 

 especiall}^ maxillary and lips, thickly covered with blunt, fleshy papil- 

 lae; upper parts more sparsely covered, and traces of them may often 

 be made out with the aid of a lens, scattered over the body. Lateral 

 line represented by 17 or IS small inconspicuous pores. 



First dorsal spine situated three-fifths or three-fourths the diameter 

 of eye distant from the transverse ridge across top of head behind 

 eye; the first spine the longest of the anterior spines, its length 

 equal to distance from tip of snout to front of pupil; the last spine 

 the longest, longer than the first spine b}^ the longest diameter of the 

 pupil. No notch ])etween dorsal spines and rays, the longest of the 

 latter much longer than the spines; the tips of the last ra3^s reach 

 past the base of the caudal. Pectoral reaching to above base of third 

 or fourth anal ray; the pectoral rays all simple, 11 in number. 

 Detached pectoral ray in large specimens (12 cm. in length) equal in 

 length to distance from tip of snout to middle of eye; comparatively 

 longer in smaller specimens usually not reaching front of anai. 

 Ventrals usually reaching about to front of anal, adnate to body, 

 except a small portion at ends of rays; free portion ecpial to diameter 

 of eye. Caudal rounded. Distance from base of pectoral filament to 

 anal nearly equal to head. 



Color brownish above, usually with vermicidated diagonal or longi- 

 tudinal light streaks above and below lateral line, but never crossing 

 it; lateral line runs along a brown streak and often has a light streak 

 above and below defining it; above the light and dark streaks extend 

 on dorsal; lower part of sides, bell}^, and under part of head white; 

 a black spot on membrane behind tip of each dorsal spine; a larger 

 black spot across tips of first 3 or 1 dorsal rays; anal, ventrals, and 

 pectoral black, shaded at base into the white of lower parts of l)ody; 

 the pectoral crossed by inconspicuous lighter vermiculated streaks, its 

 inner surface white; caudal crossed by 2 wide solid dusky bands, 

 separated by an interval narrower than themselves; these bands very 

 constant; scarcely anj^ variation in a hundred specimens examined. 

 Peritoneum white. 



Here described from specimens about 12 cm. in length. Upward 

 of a hundred specimens were obtained by us from Onomichi, Nagasaki, 

 Kobe, and Wakanoura. This species is closely allied to Mmcms 

 monodactylus of the East Indies, diflering in the stouter body shorter 

 first dorsal species and in other details of color and structure. In 

 Richardson's figure of Mlnous adconsi^ the belly is shown as very 

 short, the pectoral reaching middle of anal, the pectoral filament and 



