SOME NEW OB LITTLE-KNOWN AUSTRALIAN FISHES.— OGILBY. 123 



however, differs from Bleeker's in its deeper body, longer head, more robust 

 peduncle, and larger scales. The color-pattern of crescentic bands, all of 

 which, except the last two, terminate on the dorsal ridge, is very distinct, nor 

 is there any trace of spots on the fins. 



Family PEMPHERID^. 

 REGANICHTHYS gen. nov. 



Body deeply ovate, compressed. Scales moderate, adherent, ctenoid,, 

 smooth. Lateral line continued well on the caudal fin, the tubes simple, occupy- 

 ing the basal portion of the exposed scale only. Head almost wholly scaly,, 

 with short blunt snout and narrow preorbital. Mouth terminal, protractile, 

 with wide oblique cleft, the lower jaw prominent. Jaws, vomer, and palatines 

 with narrow bands of small teeth. Nostrils contiguous, close in front of the 

 upper half of the eye. Eyes very large, anteromedian, high. Preorbital entire ; 

 preopercle nearly so; opercle with a blunt point. One dorsal fin, with viii 14 

 rays, the spines graduated, the rayed portion longer than that of the anal ; some 

 of the anterior rays greatly produced. Caudal very large, emarginate, with 

 15 branched rays, the outer produced. Anal with iii 12 rays, similar to the 

 dorsal. Pectorals obtusely pointed, with 16 rays. Ventrals well developed, 

 inserted below the base of the pectorals, close together, with a strong spine and 

 5 branched rays. Gill-openings wide ; gill-membranes separate, free from the 

 isthmus : pseudobranchia? large ; gill-rakers in moderate number, long and 

 slender. 



Etymology : — I have much pleasure in naming this fine genus after Mr. 

 C. Tate riegan, B.A., of the British Museum of Natural History, whose taxo- 

 nomic work has been invaluable to students of this class. 



Remarks: — Beganichthys bears a marked external resemblance both to a 

 typical Pemphcris and to the monodactyloid genus Schnettia (=Bramichthys) , 

 but is at once distinguishable from both by the short anal, while from the 

 latter it is further separable by the ctenoid scales, few-rayed dorsal, and 

 normally developed ventral. On the whole, therefore, I consider that its 

 affinities are more with the Pempheridce than with the Monodactylidce and I 

 have, therefore, placed it provisionally in the former family. 



REGANICHTHYS MAGNIFICUS sp. nov. 

 (Plate XXX.) 



THREADFIN BULLSEYE. 



Type locality: — Thursday Island, Torres Strait. 



Dorsal and ventral contours evenly convex, the latter somewhat the 

 deeper; surface of back in front of the dorsal fin transversely rounded; width 

 of body 244 in its depth, which is 1-7 in its length and three fifths more than 



