42 BULLETIN 99^ UNITED STATES NATIONAL MUSEUM. 



States National Museum collection contains 529 specimens of East 

 African Crocidura, including 19 types. The total number of speci- 

 mens examined during my work in determining the specimens listed 

 is thus 536, including 26 types. In addition to this East African 

 material, I have enjoyed the privilege of working out at the United 

 States National Museum the collection of shrews made by the Chapin 

 and Lang Expedition to Belgian Congo. This valuable material, in 

 the American Museum of Natural History, includes 12 forms of 

 Crocidura, and a total of 119 specimens. There are six types. ^ It 

 is obvious that no successful monographic work on African species 

 of Crocidura is possible without consulting American collections. 



CROCIDURA NYANS^ NYANS^ Neumann. 



1900. Crocidura flavescens nyanScT Neumann, Zool. .Tahrbiich., Syst., Geog. Biol., 

 vol. 13, p. 544. (Fort Lubwa, Usoga, Uganda; type in Berlin Museum.) 



1915. Crocidura nyansse Dollman, Ann. and I^Tag. Nat. Hist., ser. 8, vol. 15, p. 



5G5. June. 



1916. Crocidura nyansx nyansx Hollister, Bull. Amer. Mus. Nat. Hist., vol. 35, 



p. 664. October 21. 



Specimens. — Nine, from the following localities: 



UganDxV: Butiaba, 1 (Loring); Hoima, 1 (Loring) ; Kampala, 2 

 (Lormg). 



British East Africa: Kaimosi, 1 (Heller) ; Kakumega, 1 (Heller); 

 Kisumu, 1 (Heller); Sirgoit Lake, Guas Ngishu Plateau, 2, including 

 1 in alcohol (Heller). 



There is much variation in color shown in this small series of skins 

 from the region defined by Dollman as the range of typical Crocidura 

 nyansx, but no specimen is quite so dark as skins of frequent occur- 

 rence in the series of Crocidura nyansbe Icijahse. The Sirgoit Lake 

 skin is the darkest adult in the series. A skin from Kaimosi is in the 

 red phase (or pelage), common also to Jcijahse. The two skins from 

 Unyora (Butiaba and Hoima) are the palest in the series, and suggest 

 intergradation with the doriana-Uke Crocidura dapTinia of the east 

 banks of the Nile in northern Uganda. 



The following manuscript notes on the type-specimen of Crocidura 

 fiavescens nyansse are on file in the National Museum and were made 

 by Edmund Heller in Berlin: 



Type No. A 5485, skin with skull; not marked type, but this is the female of which 

 measurements are given in the original description. Color mummy-brown above, 

 grayish below. Hind foot (skin), 19 millimeters. Skull: Condyloincisive length, 

 30; breadth of braincase, 12; upper tooth row, 13.5; length of mandible, including 

 incisor, 18.5. Second unicuspid decidedly smaller than last. • 



A female of C. n. nyansx collected by HeUer at Kaimosi January 

 29 contained four embryos. 



For measurements of specimens see table, page 44. 



1 See Bull. Amer. Mus. Nat. Hist., vol. 35, pp. 063-6S0. October 21, 1916. 



