South Anieiican Mumnia{s. 2\]0 



of nearly equal lengtli. JIuzzic heavy, the nasals raised 

 and broadened anteriorly. Zygomatic plates ot normal 

 O.Tjfvnjctertis shape. 



Dimrnsioiisof the type (measured on the .spirit-specimen) : — 



Head and body 152 mm.; tail 12'J; hind toot 34*5; 

 ear 22;'). 



ykull : greatest length 42; basilar length 31*5; zygo- 

 matic breadth 17*G; nasals lG"2x4.5; interorbital brea<lth 

 6*8; breadth of brain-case 1()*4 ; palatilar length 15"a ; 

 diastema lO'l ; palatal foramina 8"8 ; upper molar series 5"8. 



Hah. Juinville, Santa Catheriiia. 



Ti/pe. Adidt male. Original number 21. Collecled by 

 W. Lhrhardr. Five s[)eciraens examined. 



This species appears to be most nearly allied to O.qucestor, 

 but is distinguished by its larger size and much larger 

 brain-case. 



Loncheres medius, sp. n. 



A species intermediate between L. thomasi and L. dasyihrix. 



Size markedly less than in L. thomasi, Ihering, greater 

 than in L. dast/thri.v, Ilensel. Fur thielcly spinous, the 

 spines about an inch long on the back, rather less than a 

 millimetre broad. General colour above ciiniamon-brown, 

 below dull jdnkish buff, the bases of the hairs slaty ; tran- 

 Bition on the sides of the belly quite gradual ; a slight but 

 variable amount of white in the gular and inguinal regions. 

 Spines slaty, tipped with black. Ears and the tufts round 

 them black. Hands anil feet whitish brown. Tail long, its 

 basal two inches coloured and furred like the body, the 

 remainder well-haired, uniformly dark brown. 



Skull very similar in structure to that of L. thomasi, but 

 conspicuously smaller. Larger than in L. dasythrix. 



Dimensions of the type (measured in the llesii) : — 



Head and body 230'mm.; tail 240; hind foot 40; ear 17. 



Skull: greatest length 53*5; basilar length 42"2; zygo- 

 matic breadth 25; nasals IG'O ; interorbital breadth 112 : 

 palatilar length 22; diastema 11*G; length of upper molar 

 series 13. 



Ihih. (of type), lioga Nova, Serro do ]\Iar, Parana, 8. 

 Brazil. Alt. 1000 m. Another s[)ecimen trom Joinvilie, 

 Santa Catheriiia. 



Type. Adult female. B..M. no. 3. 7. 1. 84. Original 

 nunjber 8G4. Collected 18th September, 11)01, by A. RoLert. 

 Presented by Oldtield Thomas. 



In the Biitish Museum there are examples of three species 

 of Loncheres from S. Brazil, distinguished from each other 



