OF THE KERGUELEN REGION OF THE GREAT SOUTHERN OCEAN. 447 



Area (Lissarca) rubro-fusca, Smith. Recorded from Magellan Strait and South 



Georgia. 

 Kellia consanguinea, 1 Smith. 



Kidderia [ = Modiolarca] minuta, Dall. Recorded from Patagonia. 

 Lasea rubra (Montagu). Distribution world wide. 

 Lepton parasiticum, Dall (parasitic on Hemiaster cavemosus). 

 Modiolarca exilis, H. & A. Adams. Recorded from Falklands. 

 Mytilus canaliculus, Hanley. Recorded from Chili and New Zealand. 



,, edidis, 2 Linne. A cosmopolitan species. 

 Saxicava bisulcata, Smith. 



Venus (Chione) stutcliburyi, Gray. Recorded from New Zealand and Sandwich 

 Islands (?). 



Gasteropoda : 



Admete ( ?) limnceceformis, Smith. 



Ealoniella kerguelenensis (Smith). Recorded from South Georgia. 



Hi/drobia pumilio, Smith. 



Lamella?^ Jcerguelensis, Studer. 



Marsenia kerguelenensis, Studer. 



Natica sculpta, Martens. 



Patella aenea, Martyn. 



,, delesserti, Philippi. Recorded from Magellan Strait. 



,, (Nacella) mytilina, Gmelin. Recorded from Magellan Strait. 



,, (or Patinella) magellanica, Gmelin. Recorded from Magellan Strait. 



from Australia. On the other hand, it participates in character with those of the Strait of Magellan (Siphonaria 

 tristensis, Patella magellanica and delesserti, Kidderia minuta), of the south of Chili {Mytilus canaliculus) and of the 

 islands in the neighbourhood of the Cape of Good Hope (Siphonaria tristensis). Finally, it presents particular 

 characters which imprint it, in spite of its relative poverty, with a certain seal of originality. In fact, of the 25 

 marine species composing it, we encounter 15 which have been found to be new to science. This is a proportion of 

 about 60 per cent., a proportion veritably enormous, which may be perhaps explained by the isolation of the 

 Kerguelen Islands and by their almost complete state of terra incognita in a malacological sense. The unique 

 terrestrial species which lives at Kerguelen, Helix hookeri, is assuredly one of the Helices nearest to the Antarctic 

 circle, the existence of which is known up to the present time. — (Crosse, Journ. de Conchyliologie, se>. 3, torn. xvii. 

 pp. 14-15, 1877.) 



Pfeffer records Modiolarca pusilla, Gould, and Mytilus ungulatus, Reeve, from the Kerguelen region. — (Ergebnisse 

 der deutsclicn Polar-Expeditionen.) 



1 At a first glance this species [Kellia consanguinea] might easily be mistaken for the European Lascea rubra, to 

 which it has a very great resemblance. — (E. A. Smith, Phil. Trans., vol., 168, p. 185.) 



2 Of Mytilus cdulis Smith writes : — No definite distinction can be traced in the shells (unfortunately only eleven in 

 number) collected at Kerguelen, from specimens from the Dutch coast bought in the London market. The form of the 

 shell (always more or less variable), colour of the exterior and interior, the hinge with the few irregular teeth, 

 muscular scars, and the punctures in the interior towards the ventral margins, are precisely alike in both local forms. 

 ... I have closely examined the soft parts of four Kerguelen specimens, and ... I find them to be exactly the same 

 as in European specimens. — (Phil. Trans., vol. 168, p. 189.) 



This common species [Mytilus edulis] has become widely distributed, and differs considerably in form, colour, 

 and size. Hutton quotes it as occurring in New Zealand, and I have already identified it as coming from Kerguelen. 

 —(Smith, Zool. Chall. Exp., part 35, p. 272.) 



VOL. XXXVIII. PART II. (NO. 10). 3 



