On Two new Races oj Mongoose. 



LXVITI. — Two neio Races of Mongoose. 

 By Oldfield Thomas. 



(Published by permission of the Trustees of the British .Museum.) 



Mungos paludinosus morda.v, subsp. n. 



Size very large, tlie skull larger than in any example of 

 Af. p. robustus. Frontal region unu^^ually convex, the outline 

 strongly bowed. Crest well developed. Posterior palatal 

 tube of medium breadth. Bull?e well inflated. 



Teeth exceedingly large and heavy, far surpassing tho=?e 

 of any other member of the group (see measurements below). 

 Small anterior premolar absent as usual, this tooth being 

 only present in the western race of the species^ M, paludi- 

 nosus pluto, Temm. 



Dimensions of skull : — 



Condylo-basal length 115 mm. ; zygomatic breadth 63*1 ; 

 breadth of nasal opening 12*6 ; interorbital breadth 23'5 ; 

 intertemporal breadth 11*3 ; palatal length 66 ; palate breadth 

 outside p* 39*4 ; outer breadth of posterior palatal tube 10'6. 



Teeth. — Combined breadth of upper incisors 15'2; />" 8'5 x 

 7*1 ; /?*, greatest diameter 14'.3, length on outer side 11'7 ; 

 w?^, transverse diameter 12'5; m^ 7'5x3*7; Wj 1 1*7 X 7*1; 

 ^2 6-8 X 5-6. 



/lab. Rombashi Eiver, in German E. Africa, N.W. of the 

 north end of Lake Nyasa. Alt. 1600'. 



Type. Adult skull with unworn teeth ; said to be female, 

 but more proliably male. B.M. no. 3. 2. 16. 2. Collected 

 in November 1888, and presented by Capt. R. Crawshay. 



The conspicuously greater size of the teeth will readily 

 distinguish this fine mungoose f»'om its allies M.p. rohiistus 

 and rubeUus. HoUister's M. p. rubescens* from Kilima- 

 njaro is decidedly smaller. 



Mungos naso m'gerianus, subsp. n. 



Essential characters as in true iiaso, but size markedly 

 smaller. 



Colour as in naso. 



Skull smaller in all dimensions, as indicated by the dimen- 

 sions below. Frontal region rather less convex. Bullae 

 much smaller. 



* P. Biol. Soc. Wash. xxv. p. 1 (1912). 



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