NO. 12 NEW INSECTIVORES FROM AFRICA — HELLER 9 



This is one of the jacksoni group which are chiefly distinguishable 

 from hildegardece by the marked enlargement of the third unicuspid 

 in comparison to the second which is only about half its size. The 

 skull of the type of hildegardece has lost both its second upper uni- 

 cuspids but the third is much smaller than the same tooth in the 

 type of jacksoni and could not have been any larger than the missing 

 second unicuspid. The specimens of jacksoni in the British Museum 

 are only two, both of which are from alcoholic material. These two 

 appear considerably lighter and their skulls are decidedly larger. 



From Mt. Mbololo we have eight skins of this new race and two 

 also from the forest on Mt. Umengo, a neighboring mountain. From 

 the summit of Mt. Sagalla, also one of the Taiti Hills, there is a 

 series of much lighter specimens which no doubt represent parz'ipcs 

 although their tails are much longer than that of the typical speci- 

 men which came from the base of this mountain. Mt. Sagalla is a 

 lower mountain than Mbololo and lacks the forest covering on its 

 summit chiefly on account of its lack of moisture, to which environ- 

 mental difference the lighter color of its shrews seems to be due. 



CROCIDURA HILDEGARDE^ ALT^E, new subspecies 

 Uaragess Brown Shrew 



Type from Mt. Garguez, Mathews Range, British East Africa, 

 altitude 6,000 ft.; adult male; No. 181819, U. S. Nat. Mus. ; col- 

 lected by Edmund Heller, August 31, 191 1 ; original number, 4190. 



Characters. — Like hildegardece but tail longer and coloration 

 darker, third unicuspid equal to size of second as in typical hilde- 

 gardece. 



Coloration. — Dorsal coloration vandyke-brown merging impercep- 

 tibly on sides into the slightly lighter drab colored underparts, hair 

 everywhere plumbeous at base ; feet drab ; ears darker, hair-brown ; 

 tail almost uniform vandyke-brown, only lighter on underside 

 basally. 



Measurements. — Head and body, 74 mm. ; tail, 62; hind foot, 13.5. 



Skull: Condylo-incisive length, 19.8; breadth of brain-case, 9.2; 

 length of upper tooth row, 8.7; condylo-incisive length of mandible, 

 12; depth at coronoid process, 4.8. 



This race is confined to the forested summit of Mt. Garguez 

 ranging from 5,000 to 6,000 ft. The lower slopes of the mountain 

 are inhabited by the shorter tailed and lighter colored race procera. 

 A series of six topotypes are in the collection. These show very 

 little variation in the coloration or in length of tail. 



