FISHES.-MCCULLOCH. -c 



Family APOGONICHTHYID^. 

 Genius Apogoxops, Ogilby. 



Apogonops, Ogilby, Proc. Linn. Soc. N.S. Wales, xxi., 1896, 

 p. 23 [auoniahis). 

 Og'ilbv's definition of this genus requires amendment and 

 ■correction. Stud}ing his type specimen I find that whereas 

 he saw no supplemental bone to the maxillary there is really 

 a very distinct bone lying, along the upper and inner margin 

 of the maxillarv. He writes, also, "vomer, palatines and 

 tongue edentulous;" both the first-named bear \ery minute 

 teeth, and there are also some larger ones intermingled with 

 the others on the vomer. The teeth on the jaws are as 

 described in the type, but in large examples they are as 

 described below. Instead of "a single dorsal fin, deeply 

 notched," there are two dorsals separated b}' a short inter- 

 space. 



No scales remain on any part of the body but the lateral 

 line in the type, but in one of the specimens taken by the 

 "Thetis" Expedition there are some on the upper portion of 

 the head, body and base of the tail. Ogilby has stated that 

 they are cycloid and concentrically striated. This applies to 

 the head scales only, they being distinctly ctenoid everywhere 

 else. 



All these characters are much more easily detected in my 

 largest specimens, 122 mm. long, than in the type which is 

 onlv 54 mm. long, and, considering the care which Mr. Ogilby 

 usuallv lavished on his descriptions, the differences detected 

 are doubtless due to the want of suflficient microscopical 

 appliances on his part. 



Apogonops is apparently closely allied to Syiiagrops, Giin- 

 ther, but is distinguished by having three instead of only two 

 anal spines. 



Apogoxops axomaius, Ogilby. 

 (Fig. 13-) 

 Apogonops anonialns, Ogilby, Proc. Linn. Soc. N.S. Wales, 

 xxi., i8g6, p. 24; id., Waite, Mem. Austr. Mus., iv., 

 1899, P- 74' Pl- xi., fig. I- 



D. ix. i., 10; A. iii., 7 ; P. 13 + i , V. i., 5 ; C. 17 ; 1. lat. 

 46-50 to hypural. Head 2|-3i, depth 4^^ in the length to the 

 hvpural. Eve 3-3^ in the head, longer than the snout which is 

 3^. Interorbital space 4I. Caudal peduncle -'^-^i, as long as 

 broad, its depth equal to the length of the eye. 



Body elongate-oblong, tapering posteriorly, compressed. 

 Head large, some of the bones covered with membrane 

 enclosing canals beneath it. Mouth oblique, maxillary reach- 



