KEKGUELEX'S LAND. 193 



found at Marion Island, where it was discovered by Von 

 Willemoes Suhm. Probably the fly frequenting the cabbage 

 exists also at Marion Island; but we did not know where to 

 look for it when there, and cabbages were not very abundant ; 

 but it is possible, also, that this fly does not extend there, for 

 we saw no teal on Marion Island, though they exist in abundance 

 on the Crozets, and especially on Possession Island, where, as 

 we were told by the sealers, there is a lake full of them. 

 However, we examined but a very small tract of Marion Island, 

 and similar tracts are to be found in Kerguelen's Land, with 

 very few cabbages, and consequently without teal. Both animals 

 may abound in parts of Marion Island not visited by us. 



A wingless Gnat (Halyritus amphibius) also inhabits the 

 sea-shore, living amongst the sea-weed constantly wetted by the 

 tide. I discovered at the Falkland Islands, a similar wingless 

 gnat, and a fly which I believe to be closely allied to the 

 Kerguelen Amalopteryx, and which thus adds to those already 

 known* a further interesting link between the forms of life 

 inhabiting these widely separated islands. 



I mounted up the slope towards Table Mountain. The 

 climb is up a succession of steps, the successive flat ledges pre- 

 senting; o-laciated surfaces scattered over with stones fallen from 

 above. The thick rank vegetation ceases at about 300 feet 

 altitude, and then becomes more sparse. Colobanthus Ker- 

 guelensis, a Caryophyllaceous plant, peculiar to Kerguelen's 

 Land and Heard Island, affects the more barren stony ground 

 at this elevation, and I did not meet with it anywhere about 

 the lower slopes, or amongst the peaty soil. At Heard Island 

 it grows at sea-level. 



At about 500 feet elevation, a very handsome lichen (Neuo- 

 pogon Taylori) commences rather abruptly. It is a very con- 



* See Eev. E. H. Eaton. " Breves Dipteramm uniusque Lepidopte- 

 rarum insulse Kerguelensis indigenarum diagnoses." The Entomologists' 

 Monthly Magazine, August, 1875, p. 58. 



C. 0. Waterhouse, "On the Coleoptera of Kerguelen's Land." Ibid., p. 50. 



There are five genera of Diptera in the island (four of Muscidse, one of 

 Tipulidae, all cited as endemic in the southern islands. Possibly, however, 

 two of these occur in the Falkland Islands. The beetles are all apterous, 

 one having the elytra united. Two genera and all the species are endemic. 



O 



