198 "ENDEAVOUR" SCIENTIFIC RESULTS. 



and the tip of the preopercular spine (46) 3-6 in the 

 length. Eye (10) 1-7 in the snout (17) which is 2-7 

 in the head. luterorbital space (2) 5-0 in the eye; depth 

 of caudal peduncle equal to the length of the eye. 



An osseous rugosity covered by thin skin on each 

 side of the cranium behind the eye; each is formed of 

 short ridges radiating from a low central apex. Gill- 

 openings on the upper surface, above the level of the 

 upper base of the pectoral fin, exposed and situated a 

 little nearer the eye than the pectoral fin. Snout 

 obtusely pointed when viewed from above; the preorbital 

 projecting beyond the upper lip when the mouth is 

 closed. Maxillary not quite reaching the vertical of the 

 minute nostril, which is placed a little before the bony 

 tubercle on the anterior orbital margin. Lower lip with 

 a broad fold forming a supplementary lip anteriorly. 

 Preopercular spine curved slightly outward but not 

 upward at the tip ; there are about seventeen small 

 spinules on its inner edge which point forward and 

 increase slightly in size towards the middle of the series ; 

 a strong antrorse barb on the outer surface of the base 

 of the spine. A broad band of small teeth in the upper 

 jaw, which are confined to the front and anterior portion ; 

 a rather narrower band in the lower jaw, which extends 

 farther backward. 



Body greatly compressed anteriorly and even the 

 caudal peduncle is broader than deep in the middle of its 

 length. The lateral lines of each side are united across 

 the nape, and a branch extends forward to the lower 

 posterior margin of the orbit and terminates on the 

 cheeks; it is slightly curved towards the back above the 

 pectorals and extends backward along the angle between 

 the back and sides. Anal papilla large. 



The anterior dorsal spine is produced into a long 

 filament which reaches backward to the base of the last 

 anal ray; the three following are successively shorter, 

 but the last is considerably longer than the first dorsal 

 ray and is connected to its base by membrane. Dorsal 

 rays subequal in length and mostly simple ; the last is 

 divided at its base and each branch is bifurcate; it 

 reaches backward to the hypural joint. Anal of similar 

 form to, but lower than the second dorsal. Upper margin 

 of pectoral excised; the median rays are longest and 

 nearly all are bifurcate. Ventrals broadly rounded and 



