Kasssila ; Kassala (goats, horses, cattle, and camelsj SVS) . 

 Port Sudan (cattle, donkeys, and horses; SVS) . Sinkat (horsesj 

 SVS). Tokar (cattle, horses, and donkeys j SVS) . 



Par fur ; No records. 



Kordofan ; KL Obeid (horses and sheep; SVS) . 



Blue Nile ; Wad Medani (camels and horses; HH) . Hassa Heissa 

 (camels; G. B. Thompson, correspondence). 



DISTRIBUTION 



H. excavatum is common throughout northern Africa, and ranges 

 through the Near East, Asia Minor and southern Russia to India. 

 It is abundant locally in southern Europe, but is particularly 

 numerous in Egypt, Palestine, Asia Minor, and southern Russia. 



In Africa, H. excavatum ranges along the northern and north- 

 eastern littoral7 a continuous belt characterized by less than 

 ten inches of rainfall per annum. Its southeastern limit is 

 Somalia. The Sudan has been invaded by this parasite possibly 

 both via the Nile from Egypt and via the Red Sea coast. 



The distribution of H. excavatum has been mapped by the 

 American Geographical Society (1954^ . 



All references below are to H. excavatiim unless othervd.se 

 noted. 



ATLANTIC OCEAN ; CANARY ISLANDS (Nuttall lot 3226 in MNH; 

 H.H. det. As H. de pressum ; Schulze 1919. As H. lusitanicum 

 cicatricosum ; "SchiAze and Schlottke 1930. KraTz 19A-0J. 



NORTH AFRICA ; MOROCCO (Blanc, Bruneau, Martin, and Maurice 

 1948. Blanc and Bruneau 1953,1954,1955. As H. lusitanicum ; 

 Blanc and Brtineau 1949) . ~ 



ALGERIA (As H. 1. l\asitanicum ; Senevet 1922B,1925,1928A,B, 

 1937. Senevet anH Rossi 1925. Kratz 1940. d'Arces 1952. As 



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