G 
NEW OR LITTLE KNOWN FISHES 
Finally a key is given, to the species of Neosilurus Steindachner, 
and the full synonymy of the East Australian fresh- water mullet, 
TracJiy stoma petardi (Castelnau). 
Of the fifteen species described below as new the most interest- 
ing is undoubtedly the little aplochitonid to which I have given the 
name Jenynseila iveatherilli. The small family Aplochitonida?, con- 
taining three (perhaps four) genera and seven species, was formed 
by Giinther* in 1864 to accommodate three species of fishes, namely 
— Aplocliiton zebra Jenyns,f from Tierra del Fuego and the Falkland 
Islands — A. tceniatus Jenyns,J from Tierra del Fuego — and Profo- 
ircctes mavcena Giinther, from " Southern Australia. "§ To these 
the same author subsequently added P. oxyrhynchus\\ from New 
Zealand. In 1882 Johnston^" announced the discovery of a second 
Tasmanian aploebitonid from the Derwent River, to which he gave 
the name Haplochiton sealii, while in 1895 Weber*"* described as 
Protroctes semoni a species from the upper waters of the Burnett 
River, Queensland. To these six must now be added the interesting 
species described below. While there is nothing remarkable in 
finding a genus closely allied to Aplocliiton inhabiting the rivers of 
Southern Tasmania, seeing that in distribution and habits the family 
closely resembles the Qalaxiidce, it is distinctly perplexing to find 
the same genus resident in the low-lying coastal creeks of Southern 
Queensland, where the w T ater is warm throughout the year. As 
among the galaxiids there are two well defined groups, the one with 
ornamental markings and containing the larger and stouter forms 
which grow to an edible size — Galaxias proper, with truttaceus, etc. 
■ — the other small and slender of uniform or nearly uniform colora- 
tion — Ausfrocobitis,^ with attenuatus, etc. — so in Aplocliiton the 
same process is repeated on precisely analogous lines, Aplocliiton 
zebra — which "is ornamented with irregular, transverse, zebra-like 
bands," grows to over a foot long, and " is good eating" — represent- 
ing the Galaxias group, while A. tceniatus, Jenynseila iveatherilli, 
and J. f/) sealii similarly represent the Austrocobiti's group. The 
* B.M. Catal. Fish., v, p. 381. 
f Jenyns, Voy. Beagle, iv, p. 131, pi. xxiv, fig. 1, 1842. 
$ Ibid., p. 132, fig. 2. 
§ The species is found in South-eastern Australia and Tasmania only. 
|| Giinther, Proc. Zool. Soc, 1870, p. 152. 
If Proc. Roy. Soc. Tas., 1882, p. 128. 
** In Semon, Zool. Forsch., v, p. 274. 
ft Ogilby, Proc. Linn. Soc. N.S. Wales, xxiv, 8. viii. 1899, p. 158. Tate Regan in 
his excellent " Revision of the Fishes of the Family Galaxiidce'''' (Proc. Zool. Soc, 
1905, pp. 303 to 384, pll. x to xiii) disallows, I think wrongly, even subgeneric rank 
to this group. 
