668 Bulletin American Museum of Natural History. [Vol. XXXV, 



with brown. Tail above and below blackish brown, very slightly lighter at base 

 below. 



Skull and teeth. — Skull in size about as in Crocidura niobe, or slightly smaller; 

 the general appearance much as in maurisca and littoralis, but decidedly smaller. 

 Teeth distinctly of the maurisca and littoralis type (the unicuspids rather narrow 

 with small cusps and large cingula) but second and third upper unicuspids wider 

 and more inclined to be circular, as in niobe. Last upper premolar longer than wide. 



Measurements of type. — Total length, 135; tail vertebrae, 59; hind foot, 14 (dry, 

 without claws, 13.2); ear, 9. Skull: Condylo-incisive length, 19.8; condylo-basal 

 length, 19.0; greatest breadth, 8.9; maxillary breadth, 6.1; mandible, 10.8; upper 

 tooth row, entire, 8.7; front of pm 4 to back of m 2 , 4.7; lower tooth row, entire, 8.2. 



This species evidently is closely related to the Ruwenzori Crocidura 

 niobe, but differs conspicuously from that species in its almost uniform dark 

 brownish coloration, above and below. Besides the type there is a single 

 skin, without skull, in the collection from Avakubi which is doubtless of 

 the same form. It is an October specimen and is slightly more reddish 

 brown than the type, with which it agrees in general dimensions. 



10. Crocidura ludia sp. now 



(Plate VII, Fig. 4; IX, Figs. 1, la.) 



Type, No. 48566, Amer. Mus. Nat. Hist., skin and skull of adult d" (teeth slightly 

 worn and basal suture not closed) collected at Medje, Belgian Congo, May 16, 1914, 

 by Herbert Lang and James P. Chapin. Orig. No. 2366. 



A small species related to Crocidura muricauda Miller and C. dolichura Peters, 

 but coloration brownish, not gray, above and below. Tail shorter than in dolichura 

 and skull smaller, with smaller teeth. Tail appearing naked but clothed with very 

 short, inconspicuous hairs; a few longer bristles at extreme base. 



Color. — Lpperparts bister or mummy brown, uniformly colored from nose to 

 tail; underfur smoke gray. Underparts hair brown, not conspicuously separated 

 from color of sides and back. Feet very thinly haired, buff, with brown streak along 

 outer side. Tail blackish brown above, lighter on basal third below. 



Skull and teeth. — Skull like that of Crocidura muricauda but slightly larger, with 

 greater interorbital breadth, wider, flatter braincase, and more slender rostrum; 

 palate wider and shorter. Teeth slightly smaller than in muricauda or dolichura, 

 but otherwise similar, with second and third unicuspids of about equal size or second 

 rather smaller than third; unicuspids of the general maurisca type (oval in form, with 

 small cusps and large cingula) though not so extreme as in maurisca or littoralis; 

 last upper premolar longer than wide. 



Measurements of type. — Total length, 120; tail vertebrae, 60; hind foot, 14 (dry, 

 without claws, 12.7); ear, 9. Skull: Condylo-incisive length, 18.2; condylo-basal 

 length, 17.5; greatest breadth, 8.2; maxillary breadth, 5.4; least interorbital breadth, 

 4.0; mandible, 9.2; upper tooth row, entire, 7.8; front of pm 4 to back of m 2 , 4.0; 

 lower tooth row, entire, 7.4. 



