154 A HISTORY OF RECENT CRUSTACEA 
Haan, portrayed in the adjoining Plate, is called by the 
Japanese Aka-oni-gani, which according to de Haan means 
the red crab of the devil. Inthodes Agassizii, Smith, has 
been taken in the Atlantic from depths of a thousand and 
twelve hundred and fifty fathoms. IJnthodes Murrayi, Hen- 
derson, was obtained in the Southern Ocean from three 
hundred and ten fathoms depth. 
Cryptolithédes, Brandt, 1849, with its species Crypto- 
lithodes typicus, Brandt, from California, is especially dis- 
tinguished by the great development of the carapace, 
which completely hides the legs, antenne, and pleon, and 
these when viewed from below appear to be placed in the 
bottom of a cup-like cavity. According to Stimpson, this 
development of the carapace is unequalled in any even of 
the higher decapods, not excepting Cryptopodia and Chthra, 
and this is the only instance in which the carapace con- 
ceals all the feet. 
Echidnocérus, White, 1848, contains one or two mas- 
sive species from the West Coast of America, the carapace 
in Echidnocerus setimanus (Gibbons) sometimes measuring 
ten inches in length and as many in width, and by a 
weight of over seven pounds exceeding that of the cara- 
pace even of the giant Macrocheira of Japan. 
Lomis, Milne-Edwards, 1837, has a very 
small rostrum, consisting of a single tooth. 
The little Lomis dentata is described by 
de Haan from Japan. Its carapace about 
half an inch in diameter forms a strong con- 
trast to the preceding species. 
Fic. 13.—Lomis den-  Paralomis, Stimpson, 1858, has a ros- 
‘ata [de Haan} trum which is usually trispinose, and in this 
genus the third, fourth, and fifth segments of the pleon in 
the female have the lateral plates subequal, and the median 
portion occupied by a series of large calcareous plates 
instead of particles. 
Hapalogaster, Brandt, 1851, has the appendages of the 
second pleon-segment in the female biramous instead of 
one-branched as in the other Lithodide. Its second 
antenne are much longer than the carapace, as in Porcel- 
