1916.] Hollister, Shrews Collected by the Congo Expedition. 673 



except for the small size of the anterior cusp on pm 4 , and the presence of two conspicu- 

 ous notches on the anterior mandibular tooth, exceedingly like that of the much 

 smaller S. johnstoni (Dobson) as figured on plate 28 of the Monograph of the 

 Insectivora. 



Measurements of type. — Total length, 134; tail vertebrae, 62; hind foot, 18; 

 ear, 8. The hind foot in the dry skin, without claws, measures 16. Skull and teeth: 

 Condylo-incisive length, 20.5; condylo-basal length, 19.9; maxillary breadth, 5.9; 

 least interorbital breadth, 4.2; mandible, 11.1; entire upper tooth row, 8.9; front of 

 pm 4 to back of ?n 2 , 4.4; entire lower tooth row, 8.4. The skull is badly damaged 

 in the braincase, but has been repaired so that the measurements as given are virtually 

 exact. 



There is only a single specimen of this large Syhisorex in the collection. 

 From the other species found at Medje, Syhisorex gemmeus irene, it is readily 

 distinguished by its large size, short tail, and dark colored belly. Thomas 

 has recorded Syhisorex morio from Medje l on the basis of a single immature 

 specimen. The species represented may be the one here described. 



15. Scutisorex congicus Thomas. 



Plate XT, Fig. 2. 



1915. Scutisorex congicus Thomas, Ann. and Mag. Nat. Hist., Ser. 8, Vol. 16, p. 470. 

 December. (Medje, Congo.) 



Thirty-seven specimens from Medje and one from Bafwabaka. 



This genus heretofore was known only from two examples, the type 

 specimens of Scutisorex somereni and S. congicus, both described by Thomas 

 since 1910. The Medje specimens are topotypes, the species congicus hav- 

 ing been named from a specimen collected at that place by Dr. Cuthbert 

 Christy in April, 1914. 



There is considerable variation in color shown by the specimens in this 

 series. On some skins there is very little rusty coloration while in others 

 the entire body is suffused with buff and reddish brown. There is no very 

 great variation in size among fully adult examples, as shown by the accom- 

 panying table of measurements. The lambdoid crests frequently project 

 beyond the level of the condyles as described of S. somereni. The characters 

 given by Thomas in separating this form from the Uganda species thus 

 prove to be mostly individual differences. The two forms are doubtless 

 very closely allied, but no specimen in the present series is quite so large as 

 the type of somereni. 



This series contains specimens of all ages from very young, showing the 



1 Ann. and Mag. Nat. Hist., Ser. 8, Vol. 16, p. 471, December, 1915. 



