SOME NEW on LITTLE-KNOWN AUSTRALIAN FISHES.— OGILBY. 
127 
Family BLENNIID^. 
BLENNIUS INTERMEDIUS sp . nov. 
Type locality : — Damley Island. 
Body moderately i’ol)iist, its width 1-5 in its depth, which is 4*15 in its 
length and 1-3 in the length of the liead; vent one sixth nearer to root of caudal 
than to extremity of snout; depth of caudal peduncle 3-25 in length of head, 
liead with its anterior j^rofile linear and strongly declivoius, its width 1-67, its 
depth 1*33 in its length, which is 3d 5 in that of the body. Snout rounded, its 
length one third of that of the head ; eye not encroaching on the dorsal profile, 
its diameter ld4 in the length of the snout and 345 in that of the head; 
supraorbital ridges prominent ; interorbital region narrow and concave, its 
width 3-2 in the eye-diameter. Nasal cirrus small and bifid; orbital cirrus short 
and ramose, about half an eye-diameter long; a low nuchal crest. Upper jaw 
slightly projecting; maxillary extending to below the anterior border of the 
pupil. 
Both jaws with strong curved canines. 
Lateral line distinct to about the tip of the pectoral ; a few scattered pores 
at irregular intervals along the middle of the tail. 
Dorsal fin Avith xii 16 rays, originating above the opercle, its border 
moderately cleft, the membrane of the last spine reaching about half Avay up the 
first ray; spinous portion of the fin somewhat lower than the soft, which is 
highest in its third quarter, about half the length of the head ; membrane of last 
ray not connected with the caudal. Caudal fin rounded, with 12 principal rays, 
7 of Avhieh are divided, its length 4-75 in that of the hodj. Anal with ii 18 to 
20 rays, originating below the dorsal notch, the middle rays the longest, 2-85 
in the length of the head ; last ray with a modfO'ate membrane. Pectoral obtusely 
cuneate, with 15 rays, the lower middle rays the longest, 1-33 in the length of 
the head; lower rays somewhat thickened. Yentral Avith 2 soft rays, the inner 
the longer, rather more than the head behind the eye. 
Pale greenish yelloAC, Avith 12 black spots arranged in pairs beloAV and 
upon the base of the dorsal fin; sides Avith numerous black spots irregularly 
distributed, but giving a general im]:)ression, in conjunction Avith the dorsal 
series, of vertical rows of paired spots; a few smaller spots on the sides of the 
abdomen and an obscure series of five along the base of the anal. Head Avith a 
feAv spots on the opercles and i)ranchiostegals, and a pair of angular bars across 
the lower surface; orbital cirrus black, tipped Avith Avhite. A black spot betAveen 
the tAVO anterior dorsal spines and an obscure median series on the spinous 
portion ; other fins immaculate. 
Etymology : — intermedins, that is between'’; Darnley Island, whence 
it comes, being rouglily intermediate betAveen Port Arthur, Tasmania and 
]\Iisaki, Japan, the type localities respectively of B. tasmanius and B. yatehei. 
