E | : A. 
36 | Geographical Distribution of. Crustacea. 
Ww Vw 
alib o — Grapsus pictus 1s not included ; it has not been re- 
ported from the eastern coast of Africa. ''he above list must be 
much inereased as the species of the different regions are better 
understood. Some of the species have a range of over twelve 
thousand miles. Many species common to Natal and Japan or 
the Hawaiian Islands, are given in the above list. We add be- 
low a list of— | 
SPECIES COMMON TO THE NATAL AND THE LIUKIUAN (sovTH 
JAPAN) OR HAWAIIAN PROVINCES OF THE SUBTORRID REZGIONS, 
AND NOT YET OBSERVED IN THE TORRID REGION INTERMEDIATE. 
Micippa thalia.—Nat. and Jap. Ocy poda cordimana.—Nat. and Jap. 
Xantho affinis, De H.—Nat. and Jap. Sesarma picta.—Nat. and Jap. 
Xantho obtusus, De H.—Nat. and Jap. — |Sesarma affinis.—Nat. and Jap. 
Carpilius petrus, De H.—Nat, (I. Fr.) and|Kraussia rugulosa.— Nat. and Haw. 
Ja Galene natalensis.—Nat. and Haw. —. 
Charybdis granulatus.—Nat. and Jap. Dromia hirsutissima.—8. Afr. and Haw. 
Thalamita prymna.—Nat. and Jap. Calappa spinosissima.—lI. Fr; and Haw. 
Gelasimus arcuatus.—Nat. and Jap. Doto suleatus, Nat., Jap., and R. Sea. 
Gelasimus lacteus, De H.—Nat. and Jap. 
'The species of New Zealand, while somewhat related to those 
of southeastern Australia, have rather close relations to those of 
Chili, and also some resemblance to those of Britain. 'l'he gen- 
era Ozius, Hemisgrapsus and. Chasmagnathus are common to 
both New Zealand and the part of Australia referred to. 'l'he 
following genera characterize both Chili and North New Zea- 
land :—Cancer, Ozius, Cyclograpsus, Paguristes, and Beteus ; 
and the Cancer Edwardsi and Plagusia tomentosa appear to be - 
common to the two provinces, while the genus Cancer is not 
elsewhere known out of America and Northern Europe.  Palce- 
mon affinis of the Bay of Islands, as Edwards observes, is hard- 
ly distinguishable from P. squilla of the coasts of France and 
Britaim. 'The species of Portunus in these southern seas are 
representatives of the most characteristic of European genera, 
and they belong rather to the cold temperate thau subteniperate 
regions of the Australian and New Zealand seas.  Portunus in- 
tegrifróns is reported from 'l'asmania (Van Diemens Land). 
Ozius represents Xantho of the British Channel. " 
'The occurrence in New Zealand of this representative of a 
cold water .Xantho, of the Palaemon affinis so near a European 
species, of Cancer and Portunus, which are found together only 
in British seas, shows a striking zoological relation between these 
antipodes—a relation plainly dependent on the similar insular 
character and oceanic temperature of the two regions, Britain 
and New Zealand. 
In the north Polar seas, the species have often a wide range, 
and probably pass from one ocean to the other through the Polar 
oceans. 'l'hus Cransgon boreas, Carcinas manas, Pagurus streb- 
lonyz, Hippolyte aculeatus, are not only found on opposite sides 
of the Atlantic, but also in the North Pacific. 
Temm 
PIA 
— scd ge: 
