ADDITIONS TO THE FISH FAUNA OF LORD HOWE ISLAND — WAITE. 1 95 
Those below-named, previously known from Australia, are new 
to the fauna of New South Wales, of which colony Lord Howe 
Island is a dependency: — 
Isistius brasiliensis , Quoy and Gaimard. 
Hippocampus hippocampus , Linnaeus. 
Epinephelus tauvina , Forskal. 
Tlierapon jarbua, Forskal. 
Ostracion cubicus , Linnaeus. 
Isistius brasiliensis, Quoy and Gaimard. 
(Figs. 1, 2). 
Under the name Leius ferox, Kner* well describedthis species from 
Australia, but without any more definite habitat. It has not been 
since recorded from our waters. The example now under notice was 
sent to the Trustees from Lord Howe Island by Mrs. T. Nicholls, 
and forms a most interesting addition to the fauna of the Island. 
In his Whaling Voyage, F. D. Bennettf described, as Squalus 
fulgens, two examples taken at different periods of the voyage by 
means of a tow net, proving the pelagic habit. The largest of 
these was an adult female, and measured eighteen inches in length. 
Ours is a male, and measures 390 mm. ( = 15J inches), it possesses 
the dark band across the chest, and the white edged fins of Scymnus 
torquatus , V alenciennes. 
The upper teeth are arranged in thirty-three rows, in a band of 
crescent shape, four or five deep mesially, and two or three later- 
ally; each tooth is strongly curved outwards and backwards, and 
the whole series is depressible. The palate is very hard and is 
evidently the counterpart of the tongue which is furnished with 
a similarly hard plate extending all along the front and lateral 
margins. * Such crushing surfaces would appear to be unnecessarily 
developed if used only for reducing the weak shells of Ianthina 
and Reclusia , or even the armament of Nautilograpsus. 
The lower teeth form a single functional fixed 
series arranged in rather more than a semicircle, 
with a diameter of 35*5 mm. in the specimen ex- 
amined. Each tooth consists of a thin erect plate 
with a triangular apex, the margins of which are 
smooth, the basal portion is faintly striated and has 
a central pit connected with the basal edge by a 
short channel ; the median tooth is wholly exposed 
and bi-symmetrical (fig. 1), the lateral teeth are im- 
bricate and their apices directed away from the 
symphysis, on approaching the angle of the mouth 
they become smaller. There are fifteen teeth on 
each side of the median one, making thirty-one in all. 
* Kner — Denks. Akad. Wiss. Wien, xxiv., 1865, p. 10, pi. iv., fig. 2. 
t Bennett — Whaling Voyage, n., 1840, p. 255. 
