AXTAROTIO BENTHOS
29
FIG. 3. Typical distribution patterns of some wide-ranging invertebrates which extend
their ranges outside the Antarctia Region (data from Fell, Holtzinger and Sherraden,
1969, Squires, 1969, Edmonds, 1969, Dawson, 1969 and Dell, 1969).
Ophiaoantha
vivipara; 0 Fhbellum impeneum;
Cfoljhgia margaritaceu capeiform&; 0
Lineua corrugatua; A Limop8k mam'onenaia.
Some groups appear to show the effects of radiative evolution with a
large number of related forms adapted to different ecological niches.
Good examples are the nototheniiform fishes and the littorinid, trichotropid and buccinid gastropods.
29
FIG. 3. Typical distribution patterns of some wide-ranging invertebrates which extend
their ranges outside the Antarctia Region (data from Fell, Holtzinger and Sherraden,
1969, Squires, 1969, Edmonds, 1969, Dawson, 1969 and Dell, 1969).
Ophiaoantha
vivipara; 0 Fhbellum impeneum;
Cfoljhgia margaritaceu capeiform&; 0
Lineua corrugatua; A Limop8k mam'onenaia.
Some groups appear to show the effects of radiative evolution with a
large number of related forms adapted to different ecological niches.
Good examples are the nototheniiform fishes and the littorinid, trichotropid and buccinid gastropods.