KISIIKS — WAITlL. 49 



and I was extrcniely pleased to find four more Chimeras in the 

 trawl — a^ain all tVniales. No more examples were met with until 

 March Kith, when at Station 4G, off the old ground, in the deeper 

 waters of GG-50 fathoms, a seventh specimen was secured, which, 

 strangely enough, proved to be another female. 



This addition to our fauna is of peculiar interest, inasmuch as 

 it is the first record of a member of the genus occurring south of 

 the equator in the eastern hemisphere. 



Although allied to a deep-water North Atlantic form, our 

 Chimiera is sutiiciently distinct to merit specific recognition, and 

 in proposing the name Chima-ra ogilbyi I have in mind the 

 numerous and valuable contributions to Australian Ichthyology 

 of Mr. James Douglas Ogilby of this city. The species may Ije 

 described as follows : — 



Length of head 4-19, greatest height of body (in front of 

 the pectorals) 5'4 in the total length, measured to the end of the 

 dorsal fin. First dorsal fin subcontinuous with the second, the 

 connecting membrane very low, the respective length of their 

 bases 14:37; combined they are ISl of the total length. The 

 spine, which measures one-fifth less than the length of the head, 

 is sub-acute at the base, thence laterally compressed, and keeled 

 in front for the greater part of its length distally ; behind it is 

 grooved, the lateral borders of the distal half are beset with 

 curved spines directed backward and downwards; the first dorsal 

 ray is somewhat longer than the spine ; the anterior rays coalesce, 

 but the two posterior ones are distinct. The second dorsal 

 fin is low, rounded behind, and clearly separated from the 

 caudal. The pectoral is falcate, with the inner angle rounded and 

 deeply notched at its insertion with the fleshy base below ; the total 

 length of the fin is one-half, and its membraneous portion one- 

 seventh longer than the head ; it reaches beyond the insertion of 

 the ventrals. The ventrals originate midway between the tip of 

 the snout and the end of the dorsal fin. They are truncated 

 behind and are shorter than the head, being contained 1-7 times 

 in its length. In the median line behind the ventrals is a fatty 

 organ longitudinally grooved. There is no distinct anal fin, its 

 membrane being continuous with that of the caudal and extend- 

 ing rather further than the upper membrane : caudal produced 

 into a rayless filament. The lateral line posterior to its cephalic 

 subdivision makes two sharp angles, thence passes in small regular 

 undulations, but on the tail becomes straight ; it takes a median 

 course until just in advance of the termination of the dorsal fin, 

 when it abruptly passes to the lower side and is thus continued 

 along the filament. The course of the lines on the head, together 

 with the position of the main mucous pores, is shown in the 

 accompanying figure. 



