74
R. I ( . DELL
Barnard (1932) in his report on the Discovery collections covered the
area from southern South America, the islands of the Scotia Arc,
particularly South Georgia, and the Antarctic Peninsula. He added the
family Atylidae to this fauna and described a new family, the Pagetinidae, from the material collected. He noted that there was a strong
resemblance between the amphipod faunas of the Antarctic Peninsula
and the Ross Sea, particularly evidenced by the Acanthonotozomatidae
and the Epimeridae.
Schellenberg (1931) was concerned with the suborders Gammaridea
and Caprellidea from a variety of Swedish and German expeditions to
the Magellan Region, the islands of the Scotia Arc and to the Antarctic
Peninsula. This report therefore covers much the same ground as does
that of Barnard (1932) which appeared a year later. Barnard did not
have access to Schellenberg’s paper until after his own had gone to
press, and as Barnard noted only some of the major changes necessitated by Schellenberg’s work could be made in his own paper.
Schellenberg listed some 290 species and varieties from the area he
dealt with and tabulated their distribution patterns from Chile to West
Antarctica. He recorded 91 species of benthic amphipods from South
Georgia. Of these 29 species were considered endemic. Of the other
species recorded from South Georgia, 14 ranged from the Magellan
Region to the South Orkneys or to the Antarctic Continent, 18 were
known also from the Magellan Region and a further 26 species were
also recorded from the islands to the south and from the Antarctic
Continent.
Two lyssianassid amphipods are particularly common in McMurdo
Sound and since they are readily attracted to bait have been frequently
caught by most observers who have used traps of one sort or another.
Until quite recently only one species was considered to be represented,
Orchornenella rossi Walker, but Hurley (1 965) showed that there were
two species, the commoner one being undescribed. This second species
was named Orchomenella plebs by Hurley. Presumably all previous
references to 0. rossi really refer to both species. Walker (190.7)
quoted T. V. Hodgson, the indefatigable naturalist on the National
Antarctic Expedition 1901-04. Hodgson recorded lifting a trap from
56 fm on 17 May 1902, ‘‘ The trap contained about 10 000 of these
amphipods.. . . Four fish were in the trap, one of them had been
reduced to an absolute skeleton; on another the amphipods hung
by their ‘ teeth ’ in a compact mass, completely concealing their victim.
Its skin had disappeared, and I judged also about a millimetre of flesh,
but the animal was still alive; the other two fish were presumably
waiting their turn.”
R. I ( . DELL
Barnard (1932) in his report on the Discovery collections covered the
area from southern South America, the islands of the Scotia Arc,
particularly South Georgia, and the Antarctic Peninsula. He added the
family Atylidae to this fauna and described a new family, the Pagetinidae, from the material collected. He noted that there was a strong
resemblance between the amphipod faunas of the Antarctic Peninsula
and the Ross Sea, particularly evidenced by the Acanthonotozomatidae
and the Epimeridae.
Schellenberg (1931) was concerned with the suborders Gammaridea
and Caprellidea from a variety of Swedish and German expeditions to
the Magellan Region, the islands of the Scotia Arc and to the Antarctic
Peninsula. This report therefore covers much the same ground as does
that of Barnard (1932) which appeared a year later. Barnard did not
have access to Schellenberg’s paper until after his own had gone to
press, and as Barnard noted only some of the major changes necessitated by Schellenberg’s work could be made in his own paper.
Schellenberg listed some 290 species and varieties from the area he
dealt with and tabulated their distribution patterns from Chile to West
Antarctica. He recorded 91 species of benthic amphipods from South
Georgia. Of these 29 species were considered endemic. Of the other
species recorded from South Georgia, 14 ranged from the Magellan
Region to the South Orkneys or to the Antarctic Continent, 18 were
known also from the Magellan Region and a further 26 species were
also recorded from the islands to the south and from the Antarctic
Continent.
Two lyssianassid amphipods are particularly common in McMurdo
Sound and since they are readily attracted to bait have been frequently
caught by most observers who have used traps of one sort or another.
Until quite recently only one species was considered to be represented,
Orchornenella rossi Walker, but Hurley (1 965) showed that there were
two species, the commoner one being undescribed. This second species
was named Orchomenella plebs by Hurley. Presumably all previous
references to 0. rossi really refer to both species. Walker (190.7)
quoted T. V. Hodgson, the indefatigable naturalist on the National
Antarctic Expedition 1901-04. Hodgson recorded lifting a trap from
56 fm on 17 May 1902, ‘‘ The trap contained about 10 000 of these
amphipods.. . . Four fish were in the trap, one of them had been
reduced to an absolute skeleton; on another the amphipods hung
by their ‘ teeth ’ in a compact mass, completely concealing their victim.
Its skin had disappeared, and I judged also about a millimetre of flesh,
but the animal was still alive; the other two fish were presumably
waiting their turn.”