162 BULLETIN 99, UNITED STATES NATIONAL MUSEUM. 



Family HYSTRICID.^. 



Genus HYSTRIX Linnaeus. 



1758. Hystrix. Linn^us, Syst. Nat., ed. 10, vol. 1, p. 56. {H. aistata.) 



In addition to tlie porcupine from Lamu, British East Africa, 

 included in our collection and listed below, the following forms 

 have recently been described from eastern Equatorial Africa: Hystrix 

 galeata amhigua Lonnberg,^ Kibonoto, Kilimanjaro; Hystrix africse- 

 australis pritttvitzi Muller,^ Tabora, south of Victoria Nyanza, German 

 East Africa; Hystrix galeata conradsi Mtiller,^ Muansa, south shore 

 of Victoria Nyanza, German East Africa; Hystrix galeata ladeTnanni 

 Miiller,^ Kondoa Irangi, German East Africa; Hystrix galeata lonnbergi 

 Miiller,* Mount Kilimanjaro; Hystrix stegmanni Miiller,^ Kissenji, 

 northeast of Lake Kivu, German East Africa; and Hystrix galeata 

 somalensis Lonnberg,^ near Njoro, north of Northern Guaso Nyiro 

 River, British East Africa. DoUman has recorded Hystrix africx- 

 australis Peters from the Amala River, southwestern British East 

 Africa.'' 



HYSTRIX GALEATA Thomas. 



1893. Htjstrix galeata Thomas, Ann. and Mag. Nat. Hist., ser. 6, vol. 11, p. 230. 



March. (Lamu, British East Africa; type in British Museum.) 

 1910. Hystrix c/aleata Roosevelt, African Game Trails, Amer. ed., pp. 473, 479; 



London ed., pp. 485 491. 



Specimens. — Three, from localities as follows: 



British East Africa: Lake Naivasha, 2 (K. Roosevelt); Maji-ya- 

 chumvi, 1 (Heller). 



Some quills of the porcupine, picked up by Doctor Mearns at 6,500 

 feet on the west side of Mount Kenia, are also in the collection. The 

 Maji-ya-chumvi specimen, which might be taken as representing 

 true galeata, is young, with onlj^ two cheek teeth in place. One of the 

 Naivasha specimens is somewhat older, with three cheek teeth, but 

 with the premolar unchanged and with the basal suture open ; while the 

 other Naivasha skull shows the specimen to be an old, but not aged, 

 individual. All are males. The skulls of these three animals are there- 

 fore not fairly comparable, but there is no reason to suspect that the 

 Naivasha specimens might represent a separate race. Skins and quill 

 markings of the two younger specimens are very much alike. 



1 Sjostedts Kilimandjaro-Meru Exped., Mamm., p. 29. 1908. 



2 Sitz.-ber. Ges. nat. Freunde Berlm, 1910, p. 311. 



3 Sitz.-ber. Ges. nat. Freimde Berlin, 1910, p. 314. 

 * Sitz.-ber. Ges. nat. Freunde Berlin, 1910, p. 315. 

 i Archiv. fur Naturgeseh., 1910, vol. 1, p. 186. 



6 Kungl. Svenska Vet. Handl., vol. 48, No. 5, p. 109. 1912. 

 ' Proc. Zool. Soc. London, 1914, p. 317. 



