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Eupagurus is by far the largest of all the genera of Pao'uridcs and includes 

 nearly 150 species, of which about 38 per cent, are sublittoral, though none 

 seem to go to depths below 850 fathoms. Though the genus is represented in 

 almost all the seas of the world — with certain notable exceptions to be presently 

 specified — it reaches its optimum, as regards both the number of species and 

 the size of individuals, in the cold sub-arctic waters of the northern hemisphere. 

 Its lines of distribution, starting from the local point, may thus be followed : 



From the Persian Gulf (2 sp. in 40 — 49 fath.) we find representatives 

 along the Malabar sublittoral (4 sp. in 10 — 824 fath.), at the Maldives (i sp.) 

 and Ceylon (3 sp. in 26 — 28 fath.) and all along the west side of the Bay of 

 Bengal (i common sp. in 15 — 26 fath.) as far as Orissa. Next we find the genus 

 in the Andaman Sea (2 sp. in 20 fath.) and scattered through the Malay Archi- 

 pelago (3 sp. down to 36 fath.) and along the east coast of Australia as far as 

 Bass Str. (6 sp. down to 52 fath.). In the South Pacific we note 14 species 

 (shore to 700 fath.) from the coasts of New Zealand (one of the New Zealand 

 species turning up again at the Falkland Is.), and three outlying species at 

 Fiji, Samoa and Tahiti. 



In the western North- Pacific littoral the species increase in number from 

 the Philippines and China Sea (2 or 4 sp. down to 115 fath.) to the seas of 

 Japan, where, between the shore and 150 fathoms, 20 or more species are known. 

 In the Behring Sea and the sub-arctic region between Kamtschatka and Alaska 

 the species are extremely numerous, especially inside the hundred-fathom line, 

 and they continue so all along the Pacific coast of North America as far as 

 Mexico. Two outlying species occur at the Cocos and Galapagos Islands, 

 and a few species are scattered along the shores of Peru and Chili and the 

 western coast of Patagonia as far as C. Horn. The genus is sparsely represented 

 all along the Atlantic coast of S. America from the Falklands and Patagonia to 

 the Caribbean, but in the Gulf of Mexico and the neighbourhood of Florida the 

 species again become fairly numerous, and several species are common alono^ 

 the Atlantic coast of N. America as far as Newfoundland. The genus is 

 characteristic of Arctic and sub-arctic seas from Greenland to Scandinavia, 

 and is abundantly represented, from the shore to about 800 fathoms, in the 

 eastern North Atlantic, from the Shetlands to Cape Verde, several species 

 extending also into the Mediterranean. 



At Senegal the genus Etipagiinis seems to stop, for with the exception of 

 a single species dredged by the " Challenger" ofi Tristan d' Acunha, no trjie 

 Eupagurns (species supposed at first to be Eupagziriis have since, by common 

 consent, been referred to other genera) has been reported from the eastern 

 side of the South Atlantic. Indeed, I can find no record of any true species 

 of Eupagurus from any part of Africa, except the Mediterranean coast and 

 the north-west coast from Morocco to Senegal. 



