THE PAGURIDZE 159 
a delicacy. The naturalists visited Santa Cruz-Major in 
search of it for the curious reason that there are no pigs in 
that island. ‘ Wild pigs,’ they say, ‘ destroy not only these 
crabs, but dig up Shore Crabs (Ocypoda) and Land Crabs 
from their holes. In Ceylon, near Trincomali, the wild 
swine come down every night to the beach to dig up crabs, 
and large tracts of sandy beach are ploughed up by them 
in the search.’ 
Cenobita, Latreille, 1826, while agreeing with the pre- 
ceding genus in the character of the antenne, approaches 
the next family in the formation of the pleon. This is 
soft and membranous and twisted on itself; the dorsal 
plates are narrow, with appendages to the segments as in 
Birgus, but those of the sixth segment are well developed 
and unsymmetrical, the appendage on the left being the 
larger. ‘The species protect themselves in a variety of 
shells, and are widely distributed over the Indo-Pacific 
region, Cenobite rugosa, Milne-Edwards, being within 
those limits almost ubiquitous. 
Family 2.—Paguride. 
The first antennz have a peduncle of moderate size, 
the first joint short and stout, the second and third slender 
and cylindrical; both the flagella are small. In the second 
antennee the peduncle is sub-cylindrical. The branchial 
plumes are laminar. The species are marine. The genera 
in Dr. Henderson's reckoning are nineteen, two or three 
of which are included in the British Fauna. In fourteen 
of the genera the pleon is spirally twisted or bent abruptly, 
soft and membranous, with imperfect sezmentation, while 
in the remaining five it is not spirally twisted, and it 
has distinct movable segments which are usually cal- 
cified. 
Pagitirus, Fabricius, 1793, originally included the whole 
family of crustaceans that walk about with borrowed shells, 
though beginning with the above-described latro, which 
has no such domicile. It is now greatly restricted, and it 
may be useful to point out some of the characters by 
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