EAST AFRICAN MAMMALS IN NATIONAL MUSEUM. 25 



now in valid use. The references under each species or subspecies 

 include the original description, with type-locality and location of 

 type-specimen if knov/n, and references to most of the published liter- 

 atm-e on East African specimens in the National Museum where the 

 authors have used technical names. Any other important references 

 are frequently cited. The plates illustrate the skulls of all type- 

 specimens of mammals of the three orders included in this part 

 which are in the museum. One type-specimen (Felis leo nyanzse) is 

 the skin only and consequently is not figured. 



Of the 63 type skulls 60 are here figured for the first time. 



A rather large proportion of the specimens in the museum had been 

 provisionally identified by other workers. Much of the material 

 collected by the Smithsonian African Expedition and by the Rainey 

 Expedition had been sorted out and labeled by Mr. Edmund Heller. 

 This preliminary work by others has often been of great help to me, 

 but in many cases, as might be expected, I have been forced to dis- 

 agree with previous determinations of single specimens or of large 

 series, and am entirely responsible for the determination of every 

 specimen listed in this report. Differences with previous workers in 

 many cases are merely the results of advantages due to the receipt 

 of more material, the benefit of recently published papers, or, in 

 some cases, to a difference of opinion in nomenclature. 



Great credit is especially due to Mr. Heller for his success in the 

 field on both of the major expeditions, and his interest in the pre- 

 liminary arrangement and classification of the collections amassed 

 by himself and his colleagues. His notes on specimens in European 

 museums and the specimens compared by him with the types in those 

 institutions, as well as his exceedingly interesting and valuable 

 journals of the field work, have been of great help in the present 

 work. 



Order INSECTIVORA. 



Family ERINACEID^. 



Genus ERINACEUS Linn»us. 



1758. Erinaceus Linnaeus, Syat. Nat., ed. 10, vol. 1, p. 52. (E. europaeus.) 

 1848. Aielerii- Pomel, Archiv. Sci., Phys., Natur., Bibl. Uiiiv. Geneve, vol. 9, 



p. 251 . November. (E. albiventris.) 

 1RB6, Peroechinus Fitzingek, Sitz.-ber. Kais. Acad. WIhb., Wioii. \-ol. 14. pr. 



], p. 565. (E. prune ri.) 



The only form of the hedgeliog included in the collection is the 

 common British East African representative of the four-toed group. 

 Other species, including membei's of five-toed groups, are known from 

 Somaliland, /\,byssinia, and Sudan. 



