310 Mr. M. Burr on nexo Species o/Forficularia. 



13x4"8; interorbital breadth 9; breadth of brain-case 18; 

 palate, leno;th from henselion 18"3 ; diastema 10"5 ; palatal 

 foramina 6"5x3 3; combined length of upper molars, ex- 

 cluding- premolar, 5'7. 



Hab. Van, alt. 5000 feet. 



Type. B.M. no. 97.6.4.18. Collected May 28, 1896. 



This beautifully-marked Jerboa, which I have named in 

 honour of its collector and donor. Major Williams, is readily 

 distinguished from all previously described species merely 

 by its general proportions, as its hind feet, while far shorter 

 than those of A. alactaga, considerably surpass those of the 

 other species above mentioned. Probably it is really most 

 nearly allied to A. euphrntica, but its longer hind feet will 

 readily distinguish it. In colour it is one of the most 

 beautiful of the family, owing to the brightness and intensity 

 of the buff stripe which runs down the hind legs. 



In Satunin's admirable paper on Caucasian mammals * 

 there are mentioned under Alactaga acontion, besides the 

 normal N. -Caucasian form, examples from Transcaucasia 

 which are stated to show '' bedeutende Abweichungen " from 

 the typical form. In all probability these examples belong 

 to A. William SI. 



XXXIII. — On neio Species o/'Forficularia. 

 By Malcolm Burr, F.Z.S. 



The following new species and varieties are, with one 

 exception, described from specimens taken by Herr Friih- 

 storfer in the Celebes, Java, and Lombok, and I have great 

 pleasure in dedicating one species to this ardent collector. 

 The collection also included two other species of Spongophora 

 and one new ChcBtospania , which I have refrained from 

 describing, as I possess only females, and those not in good 

 condition. 



The collection made by Herr Friihstorfer is of great interest 

 as including species from several localities, which I hope to 

 work out more fully at a later date. 



I take this opportunity of thanking ray learned colleague 

 M. de Bormans, to whom I am indebted for his invaluable 

 assistance in determining many of the species and fixing the 

 novelties. 



* Zool. Jahrb. ix. p. 308 (1896). 



