REPORT ON THE BRACHYURA. 
321 
The species are somewhat numerous and occur commonly in the littoral and shallow 
waters of the Indo-Pacific region. 
To the species enumerated by Professor Bell the following must be added : — 
Philyra variegata (Riippell). Red Sea. 
Philyra tuberculosa, Stimpson. Hong-Kong. 
Philyra unidentcita, Stimpson. Chinese Seas (to 30 fathoms). 
Philyra mcirginatci, A. Milne Edwards. Samoan Islands. 
Philyra longimana, A. Milne Edwards. New Caledonia,. 
Philyra cristcita, Miers. Goree Island. 
Philyra l as vidor sails, Miers. Goree Island. 
Philyra rectangularis, Miers. Seychelles. 
Philyra ruclis, Miers. Penang. 
Leucosia orbicularis, Bell, should probably be referred to this genus ; it differs from 
the typical Leucosise and resembles Philyra in the broader less prominent front, and the 
absence of the thoracic sinus, but resembles Leucosia and differs from Philyra in the 
polished carapace. 
Philyra platycheira (?), de Haan. 
1 Philyra platycheira, de Haan, Crust, in v. Siebold, Fauna Japonica, decas 5, p. 132, pi. xxxiii. 
fig. 6, 1841. 
„ ,, Bell, Trans. Linn. Soc. Lond., vol. xxi. p. 300, 1855. 
An adult female, obtained on the South Australian Coast in 2 to 10 fathoms, in 
April 1871, is referred, but rather doubtfully, to this species. 
The pterygostomian regions are but very slightly angulated. 
Adult ? . 
Lines. 
Millims. 
Length of carapace, .... 
5 
10-5 
Breadth of carapace, rather over 
H 
10 
Length of a chelipede, 
H 
16 
Subfamily 2. Leucosiina:. 
The frontal region of the carapace is narrowed and produced anteriorly. A thoracic 
sinus is developed (i.e., a shallow pit in front of and above the bases of the chelipedes). 1 
The subfamily is restricted to the single genus Leucosia, Fabricius. 
1 This curious cavity is not apparently connected with the respiratory chamber, as is the opening in front of the 
chelipedes in the families Calappidae and Dorippidae. 
(ZOOL. CHALL. EXP. — PART XLIX. — 1886.) 
Ccc 41 
