1576 CRUSTACEA. 



dromiiformis, and Oncinopus arenaria are peculiar species. The 

 Ranina dentata occurs here of a larger size than in the East Indies. 



The Jbnquin province is characterized by species of Dorippe, and 

 by Liagora rubro-maculata, with some Leucosidse. The Acanthodes 

 armatus of De Haan from the east coast of Niphon appears to belong 

 to the Niphon province ; and the giant Macrocheira Koempferi of De 

 Haan to the Saghalian. 



The Japan Seas are allied to the Hawaiian through certain species, 

 as mentioned beyond. Through species of Sicyonia they are related 

 to Rio Janeiro as well as the Mediterranean. The species occurring 

 both in the Japan Seas and at Port Natal, are given on page 1574. 



The Swan River province on Western Australia, although of the 

 warm temperate region, contains the following species identical with 

 species of the Natal province, viz., PencKus canaliculatus and Gono- 

 dactylus B-spinosus; also the cosmopolite, Gonodactylus chiragrus, and 

 the East India species, Thenus orientalis. The following species found 

 in this province, have not been mentioned from other localities, viz., 

 Gelasimus forceps and Philyra porcellana. 



The Crustacea of the eastern coast of Australia have been little 

 studied, excepting those of Port Jackson and the vicinity. This 

 province is characterized by the presence of Halimus tumidus, D., 

 Myctiris longicarpus, Ozius truncatus, Edw., Helceciiis cordiformis, H. 

 inornatus, D., Cliasmagnaihus levis, D., and O. subquadratus (possibly 

 N. Zealand), Helice crassa, Plagusia glabra, D., Paguristes frontalis (?), 

 Callianassa ( Trypcea) auslraliensis, D., Hippolyte spinicaudis. 



The absence of the Xanthidae is one of the prominent characters 

 here observed, a group of species that occur but sparingly in any sub- 

 temperate region. Among the Tetradecapods there is the Chilian 

 genus AmpTioroidea, affording a species closely like that of Valparaiso. 

 The other genera of Tetradecapoda observed, are Idotcea, Splieroma, 

 Orchestia, Allorchestes, Hyperia. 



In the great Pacific section of the Oriental kingdom, the Polynesian 

 kingdom is of great extent, covering twenty degrees either side of the 

 equator through the ocean to 130 west. Nearly the same genera 

 are represented as in the East Indies, mentioned on page 1575. 

 Among the exceptions, according to present knowledge, are Egeria, 

 Doclea, Tiarinia, Parthenope, Cryptopodia, Tlos, Panopceus, L/upa, 

 Podophthalmus, Leucosia., Ixa, Arcania, Platyonyclius, Thalassina, 

 Acetes, Thenus, etc., while there are present, species of Pericera, Rup- 



