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Commander S. W. Handford of the NAMRU_3 staff, Miss J. B. Walker of the East African Veterinary Research Organization, and Mr. George Curtis Moore, Second Secretary of the American Embassy at Cairo, kindly provided their excellent services as editors. The thankless task of checking the bibliography was kindly undertaken by Dr. Edith W. Ware during a research tour sponsored by Dr. Henry Field, Coconut Grove, Florida.

Information on systematic names and other matters pertaining to hosts of ticks has been secured from prominent specialists: Dr. A. L. Rand, Chicago Natural History Museum, on birds; Mr. C. C. Sanborn of the same institution on bats; Dr. H. W. Setzer, United States National Museum, on other mammals; and Mr. A. Love ridge, Museum of Comparative Zoology, on reptiles. Dr. C.W. Sabrosky, United States National Museum, has kindly answered questions on several nomenclatorial problems that arose during the course of this work.

To Mr. R. Strekalovsky of Cairo University, appreciation must be expressed for the care with which he has prepared the illustrations in this report. It is also a pleasure to acknowle edge the services of Miss Marcelle Boshi and Mrs. Mary Youakim of Naval Medical Research Unit Number Three for their careful typing of the manuscript in its numerous preliminary forms, as well as in final form.

Although most illustrations used in this work were prepared especially for it, a few have been copied from previous publica tions with the permission of the authors or editors concerned. These are acknowledged in the title of each figure so obtained.

In the introductory section of the Bibliography, those per. sons who have been of special assistance in securing literature for these studies are mentioned.

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I. WEST AFRICAN SUBREGION

A.- Guinean Forest Province

1. Upper Guinea Forest District

2. Lower Guinea Forest District

B.. Guinean Savanna Province

3. Upper Guinea Savanna District 5. Southern Congo Savanna District 4. Ubangi_Uelle Savanna District 6. Uganda Unyoro Savanna District

[blocks in formation]

13. East African Highland District 16. Southeast Veld District 14. Rhodesian Highland District 17. Southwest Arid District 15. East African Lowland District

Figure 1

SUBDIVISIONS OF THE ETHIOPIAN FAUNAL REGION

As suggested by the range of many species and races of birds. These prove rather satisfactory for mammals and some other terrestrial animals.

From Chapin (1932), with the author's permission.

PLATE 1

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Figure 3 THE SUDAN. PROVINCES AND PRINCIPAL COLLECTING

SITES OF TICKS REPORTED HEREIN

(For additional Equatoria Province collecting localities

see Figures 321 and 322)

PLATE III

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