496 |. DR. R. O. CUNNINGHAM ON THE REPTILES, 
tarctic Expedition, as well as in Dana's magnificent work, is common in the Strait of 
Magellan and on the west coast of Patagonia. I obtained and preserved specimens from 
the Strait, the western channels, Port Otway, and Ancud. It is evidently distinct from 
the G. monodon of Milne-Edwards, from the coast of Chili—the spine on each side of the 
long central spine of the rostrum being of considerable length, whereas the lateral spines 
of G. monodon are described as ** petites épines trés-courtes."' 
48. GRIMOTHEA GREGARIA (Fabr.), Leach. 
Obtained between the Falkland Islands and Strait of Magellan in 1867. Specimens 
were also given to me the following year, which had been collected by the officers of the 
‘Narcissus’ at San Carlos, in Falkland Sound. Dana’s were taken in the south of 
Fuegia; and I find an excellent drawing of an individual, also captured in the south of 
Fuegia, among a collection of sketches made by Dr. Hooker when on the Antarctie 
expedition, and lent by him to me. A few specimens which I kept alive for some days 
in a glass of sea-water swam rapidly about E ii by means of rapid flexions and 
extensions of the tail. 
49. CALLIANASSA UNCINATA, Edw. 
I found fragments of this species lying on the sandy beach of the island of Quehuy, 
off Chiloe, and was told by an English resident there that the species was not uncommon, 
burrowing in the sand. 
50. CALLIANASSA GIGAS, Dana (?). 
An imperfect specimen of a Callianassa, which does not appear to me distinet from 
the above species obtained at Puget Sound, was picked up by me on the beach at San 
Carlos de Ancud, Chiloe, in April 1861. 
51. BETÆUS SCABRO-DIGITUS, Dana. 
I found this species abundant in the rock-pools at Lota (Bay of Arauco), where it was 
diffieult to catch, owing to the activity of its movements. Their colour was dull green. 
- Dana's specimens were taken at Valparaiso. 
52. BETAUS TRUNCATUS, Dana. 
This species I dredged at Puerto Bueno, west coast of Patagonia, on the 7th of 
December 1868. Dana's specimens were from Fuegia. 
53. HIPPOLYTE GRAYT, n. sp. 
Of this species of Hippolyte, which appears to be undescribed, and of which I givea 
, Sketch (Pl, LTX. fig. 8), I only obtained a single imperfect specimen, from Port Otway. — — 
Rostrum shorter than the carapace, with two prominent teeth on its upper surface, 
and a third at its base, immediately above the eye. -On the middle line of the cara- 
pace, behind the eye, are three strong teeth. Beneath the eye a fine spine. Feet — : 
Dw and slender, the posterior ones denticulated on the under surface. a A 
*- 
