NOTES ON SOME .TAPANEÖE FISHES. 11 



lower tluiQ the first ray of first dorsal. The species seems to be 

 identical with Cfiimœra ogilbyl taken ott' Port Hackin.s;, New 

 South Wales, Australia, well agreeing; with the description and 

 the figure"^ of it. I am pleased to have been able to examine 

 two males of the species, since IMr. Waite, the original describer, 

 had access to female specimens only. 1 am under obligation to 

 Mr. Nagayo, Mr. Alan Owston's assistant, for the trouble of 

 selecting the species for me from among numerous specimens of 

 Chimœra. I will here describe the specimens in detail. 



Head measured from tip of snout to gill opening contained 

 41 in the total length excluding the parts from the end of second 

 dorsal to the end of caudal filament. Greatest height of body 

 in front of the posterior end of the base of first dorsal 6 ; snout 

 23 in head ; eye 3 to 3i ; interorbital 4 to o. Height of head 

 behind eye almost equal to height of body. Eye large, elliptical, 

 the diameter longer than the interorbital width. Front of eye 

 midway in length of head ; tip of snout rather acute. Spine of 

 the first dorsal curved slightly backwards, shorter than the length 

 of head and its tip lower than the tip of first ray of first dorsal, 

 triangular in cross-section ; its anterior surface smooth with a 

 median keel ; its posterior surface grooved ; the distal half of 

 its length with recurved spinules arranged in two rows ; this 

 spinous roughness same as in Chimœra phantasma ; the spine 

 when depressed reaches to the origin of second dorsal ; length of 

 the spine contained le times in head. Anterior angle of the free 

 margin of the soft part of first dorsal acute, the margin being 

 almost straight. Soft portion of first dorsal and the membrane 

 joining it to the second dorsal are contained in a deep groove. 

 Height of the anterior ray of first dorsal exclusive of its fleshy 



«) Loc. cit. 



