Fowler (1956) also reported that there had been no record of 

 the white shark in the Red Sea since 1775^ hut it has been recorded 

 there recently (Eibl-Eibesfeldt and Hass, 1959). 



The species of Isurus are inhabitants of tropical, and warm 

 temperate waters of both hemispheres, althoiigh they extend their 

 Slimmer range into cool temperate regions. In the Atlantic, I. 

 oxyrinchus has been recorded from as tax north as southwestern 

 Norway as a stray, presumably because of the influence of the North 

 Atlantic Current. It is generally oceanic but has been recorded 

 from most island areas, such as the Azores and Canaries, as well as 

 from the Mediterranean Sea. Coastal records from the western Atlantic 

 are scattered, but it apparently extends from Maine ( Scattergood, 

 1962b) south to northern Argentina (Bigelow and Schroeder, 19^8). 

 Roedel and Ripley (1950) reported I. glaucus in California waters 

 as ranging from Monterey Bay southward to Baja California. However, 

 Radovich (1961) reported the capture of a specimen from off the 

 Colianbia River, representing a northward extension in range. On 

 the basis of longline records, Strasburg (1958) showed the bonito 

 shark (_I. glaucus ) to be wide ranging in the central Pacific. It 

 was never taken in great numbers, and the data showed no special 

 centers of abundance. 



Illingworth (I961) reported the New Zealand mako (l. glaucus ) 

 as occiirring south to Stewart Islajid in southern summer, though 

 it is normally more abundant north of Cook Strait during any season. 

 Whitley (19^0) described its distribution in AustraJLian waters, stating 

 that it is pelagic "and prefers colder waters." Since he illustrated 

 the mako with a photograph of Lamna , his distributional data may apply 

 to the latter genus, which is normally antitropical in distribution. 

 However, I. glaucus has been teuken as far south as Amsterdam Island 

 in the Indian Ocean (Blanc, I961); also, in a paper dealing with the 

 sharks of Madagascar, Fourmanoir (1961) stated: "La capture d' Isurus 

 oxyrinchus a eu lieu le 10 aout 1959^ elle est en relation avec le 

 refroidissement des eaux a celle epoque." Foiormanoir also reported 

 that Isijrus accounts for as much as one-third of all sharks caught 

 by fishermen in the Comoro Islands. 



Misra and Menon (1955) recorded I. glacus from South Africa, the 

 Red Sea, Arabia, India, Pakistan, Ceylon, and Indochina. Smith's 

 suggestion (1953) that the range of the Atlantic 1. oxyrinchus is 

 continuous around the Cape of Good Hope is supported by Fourmanoir, 

 as mentioned above. Thus, the range of 1. oxyrinchus overlaps that 

 of 1, glaucus . 



The porbeagles ( Tramna ) are pantemperate sharks, generally avoiding 

 the tropics (Hubbs and Follett, 1947). In the eastern Atlantic, L. 

 nasus occurs from northwestern Africa to southern Scajidinavia. 



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