484 DR. R. O. CUNNINGHAM ON THE REPTILES, 
95. CHILINIA FLUCTUOSA, D'Orb. 
A species of Chilinia which, I believe, is the C. luctuosa was taken in numbers at 
Port Grappler, in the western channels. It occurred in brackish water, in some cases 
associated with living Balani. Many of the shells had the apex eroded. 
96. PERONIA, sp. (Pl. LVIII. fig. 4: a, ventral; b, dorsal surface.) 
A single specimen of a naked mollusk, apparently belonging to this genus, and of 
which I give a sketch, was dredged at Sholl Bay, at the southern extremity of Smyth's 
Channel, in December 1868. The mantle was of a dirty yellow colour, marked with lines 
and blotches of light vandyke brown ; and its under surface around the foot was marked 
with light-coloured strive. The animal possessed the power of shortening and elongating 
the tentacles. At times it crawled along the sides of a glass, filled with sea-water, in 
which it was kept, on its large muscular foot, the shape of which underwent constant 
changes; and at others it floated on the surface of the water, with the foot uppermost. 
In the figure, taken after death, the foot is extended. Couthouy has described Peronia 
marginata from Fuegia; but as I have not seen his description, I do not know whether 
it is this species or not. 
TECTIBRANCHIATA. 
97. APLYSIA DACTYLOMELA, Rang. 
Specimens of this species were taken at St. Vincent. Mr. Darwin mentions it in his 
account of his visit to St. Jago. 
98. APLYSIA BRASILIANA, Rang. 
I found a specimen of this species on the rocks of the Island of Paqueta, in the har- 
bour of Rio de Janeiro, in September 1867. 
NUDIBRANCHIATA. 
99. Doris, sp. 
Specimens of a large species, of a yellow colour, were procured at Ancud, Chiloe. 
100. Doris, sp. (Pl. LVIII. fig. 6, dorsal surface.) 
A specimen of a species of this genus, of which I give a sketch, was obtained on a frond 
of Macrocystis, in Tuesday Bay, near the western entrance of the Strait of Magellan, in 
December 1868. "The surface of the mantle was minutely villous, and it was tinted with. 
delicate shades of greyish white and yellowish white. The branchial plumes were semi- 
transparent. Should this species prove to be undescribed, 1 would suggest that it be 
named Doris magellanica. 
101. EoLis CAMPBELLI, n.s. (Pl. LVIII. fig.5: a, dorsal surface; 5, ventral surface.) 
- A beautiful Eolis, of which I have found no description, and of ‘which I give a sketch, 
. was obtained on a rock in Swallow Bay, on the north.east of Fuegia. It is certainly 
