CCELACAXTHIDiE. 
/. 
409 
Genus GRAPHIURUS, Kner. 
[Sitzungsb. k. k. Akad. Wiss. Wien, matb.-naturw. Cl. vol. liii. 
pt. i. 1866, p. 155.] 
Supplementary caudal fin prominent; the rays of all the fins 
broad, expanded, distally pointed, and closely articulated almost to 
the base ; preaxial rays of the first dorsal and caudal fins tuber- 
culated. Scales and head-bones tuberculated. 
So far as known, this genus comprises only one small species, 
of which there are no specimens in the Collection :— 
Graphiurus callopterus , R. Kner, Sitzungsb. k. k. Akad. Wiss. 
Wien, math.-naturw. Cl. vol. liii. pt. i. (1866), p. 155, 
pi. i. ; 0. M. Reis, Palaeontographica, vol. xxxv. (1888), 
p. 67, pi. v. figs. 9, 10.—Upper Keuper ; Raibl, Carinthia. 
[Imperial Geological Survey, Vienna.] „ ^ _ 
Genus DIPLURUS, Newberry. - r ' *-- 
f%<TK /Zarfiu /g-sy~ n 
^ -vV -i / i i • inKn -i ~i ^' 
fAun. Ne'wYork Xcad/Sci. vol. i. 1878, p. 127.] >' 
= ; ijis . . ' 
Supplementary caudal fin prominent, with much elongated 
pedicle ; fin-rays robust, closely articulated in the distal half; pre¬ 
axial rays of the first dorsal and caudal fins with spinous tubercles. 
Scales and head-bones irregularly striated. 
So far as known, this genus comprises only one large species, of 
which there are no specimens in the Collection :— Z . 
Diplurus longicaudatus, J. S. Newberry, loc. cit. p. 127, and Ross.<7* *<rf\ c. 
Fishes Trias, N. Jersey and Connecticut (Mon. U. S. ^ 
Geol. Surv. no. xiv. 1888), p. 74, pi. xx.—Trias; New J’j,, :: 
Jersey and Connecticut, U. S. A. [Columbia College, ft* *^3r 
New York.] /■ ZZ 
Ay ~ 
Genus U3NH3IBJA, Munster. ’ e »^- 
[Neues Jahrb. 1834, p. 539.]Av*v*. 
Syn. Holophagus, Sir P. Egerton, Figs. & Descrips. Brit. Organic 
Remains, dec. x. (Mem. Geol. Surv. 1861), p. 19. 
Teeth absent on the margin of the jaws, but a few hollow, conical 
teeth- within. Supplementary caudal fin prominent ; the rays of 
all the fins broad and robust, often expanded, and closely articulated 
in the distal portion ; small, upwardly-pointing denticles on the 
preaxial rays of the first dorsal and caudal fins. External bones 
and scales superficially ornamented with tubercles or fine interrupted 
ridges of ganoine ; parafrontal and circumorbital bones plate-like, 
without superficial excavations. 
