43 
caudal pedicle probal)ly l)y not less than one centimetre. The lateral line 
j)roceeds from the level of the ujiper margin of the operculum, and is 
gradually arched, assuming a mesial position ujoon the flank between the 
dorsal and anal fins. It crosses tlie superior half of a vertically-elongated 
series of scales, nearly six times as deep as l)road anteriorly ; and both above 
and below this there are other series of considerable depth. The dorsal 
ridge-scales in advance of the “apex” of the trunk (PI. VIII, Pig. 4a) are 
twice as broad as many of those behind ; and the former display the 
characteristic superficial granulation. 
Famihj — PHOLIDOPHORID.®. 
Fam. Char. — Body elongated or fusiform, with enamelled rhombic 
scales ; head with well developed membrane Imnes, externally enamelled ; 
gape wide, and teeth conical, usually small ; snout not produced. Upper 
lobeof tail externally inconspicuously or very slightly produced. Pin-fulcra 
minute. 
PHOLIDOPHORUS, Agassiz, 1843. 
(Recli. Poiss. Poss., vol. ii, pt. i, p. 271). 
Gen. Char. — Body fusiform, usually elongated ; tail externally homo- 
cercal, caudal fin forked ; snout obtuse ; teeth minute ; dorsal fin short, but 
moderately developed, larger than the anal, and arising above or shortly 
behind the pelvic fins ; pectoral fins small or moderately developed. Scales 
deeper than broad upon the flank ; no continuous series of ridge-scales, but 
one, two, or three large plates usually present in advance of the median fins. 
Ohs. — As remarked, especially by Zittel,* several extraneous species 
were originally referred to this genus, and its limits have thus been somewhat 
unscientifically extended. Only a single character, however, that might 
possibly be deemed of generic value, separates one form of Hawkesbury fish 
from the typical species, F. Fechei,\ namely, the origin of the dorsal fin 
posterior to a point opposite the pelvic pair, thus rendering it partly opposed 
to the anal. This character alone does not appear sufficient for the erection 
of a distinct genus ; and we therefore venture to record the occurrence of a 
new species of FliolkloiAiorus in New South Wales, more especially as Mr. 
William Davies^ has lately ascribed to this genus a Piirbeckian fish having 
its dorsal fin in precisely the same remote situation. 
* K. A. von Zittel, llandbuch der Palfsontologie, 1887, Vol. iii, pp. 214-216. 
+ L. Agassiz, Recli. Poiss. Foss., 1843, Vol. ii, pt. i, p. 272, PI. xxxix, figs. 1-4. 
+ W. Davies, “On a New Species of Pholidophorus from the Purbeck Beds of Dorsetshire,” Gcol. Mag., 
1887, [3] Vol. iv, p. 338, PL x, fig. 1 (P. hrevk). 
11a 74—90 I 
