268 J. D. OGILBY AND A, R. McCULLOCH. 
Head 6°7 in the total length. Eye large, one half the 
length of the snout, which is slightly more than one fourth 
that of the head. Interorbital space very broad and flat, 
being equal to one third the length of the head. Nasal 
cirrus very short and thick, and not reaching to the margin 
of the upper lip. Outer fold of the nostril provided with a 
small supplementary cirrus-like lobe. Groove behind the 
lower lip not extending more than one fourth the distance 
across the mouth. First gill-opening a little nearer the 
base of the pectoral than to the spiracle; first to fourth 
subequal in width, the last very large, being 25 times as 
wide as the others and very close to the fourth. Tail once 
and two thirds the length of the head and trunk. First 
dorsal fin originating a little in advance of the middle of 
the length, triangular and with the apex rounded. Second 
dorsal similar in size and shape, its origin placed over the 
extremity of the anal, which is low with its outer margin 
rounded and pointed posteriorly. Caudal narrow and some- 
What longer than the space between the two dorsals. 
Pectoral subquadrangular with rounded margins, and 
originating at a point two fifths of the distance between 
the tip of the snout and the vent. Ventrals much longer 
than broad, their outer margins broadly rounded, and the 
posterior angles acutely pointed. 
Colours of a preserved example:—Light brown above 
with a broad dark brown nuchal collar, which is widest 
above and covers the space from a point just behind the 
eyes to between the bases of the pectorals. The tip of the 
snout and two small areas below the eyes are somewhat 
darker coloured. The body is ornamented with scattered 
darker spots, some of which are very large and ill-defined 
and tend to form cross-bars. The anterior part of the tail 
is similarly ornamented, but posteriorly the smaller spots 
are absent and the cross-bands are more distinct. The 
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