larger, and the head is larger in comparison with
the body, and in this species it is the base of scales, while in the
later it is the outer margin, that is dark.

78. Elaps lewisii, Gray.

Olive green, submetallic; edge of the scales blackish; upper lip, chin,
and ventral plates greenish-white; head moderate, elongate, depressed;
head shields normal; hinder frontal and front of superciliary shield
expanded on the sides, and bent down on the cheeks. Nostrils in the
suture between the two small nasal plates. Loreal plates small oblong;
one small front and two smaller posterior oculars. Temples shielded;
labial plates moderate; chin shields two pair; middle of the throat
shielded, sides scaly. Eyes large, pupil rounded; body elongate,
sub-cylindrical, moderately thick, covered with cross bands of elongated
narrow scales. The vertebral series broad, six-sided, long; of the nape,
small, like those on the sides; of the tail, broader and more uniform;
ventral plates distinctly keeled and erect on the sides. Tail elongate,
tapering, with two rows of shields, keeled on the sides.

80. Hydrus.

Captain G. Grey informs me that these snakes coil themselves upon the
shore, living on the seaweed, and that they lay their eggs on the shore.
They are often found asleep upon the sea, when they are easily caught, as
they cannot sink without first throwing themselves on the back, probably
to empty their large vesicular lungs.

83. Platemys macquaria.

This species was originally indicated by Cuvier, from a single specimen
brought from the Macquarie River by Messieurs Lesson and Garnot. It has
been doubted if it really is an inhabitant of that country, and might not
have been imported from South America, whence all the other species of
the genus come, and sold to the French collectors for a native species.

84. Hydraspis australis, t. 6.

Body ovate, back dark olive, rather convex, rounded on the middle of the
sides, with a narrow reflexed edge, shelving behind with a broad expanded
margin; vertebral shields broad, six-sided, last subtriangular; beneath
rather convex, yellow, shelving on the sides; the second marginal plate
with an angular lobe produced into the suture between the vertebral and
first costal plates; claws sharp, black; skin of head and limbs smooth.

Inhabits Western Australia ?

The back covered with conferva.

85. Chelodina longicollis.

Mr. Gould brought two large specimens of this species, which are much