On Australian Murines hitherto referred to sf Mus." G03 



Sastr cigala versicolor, sp. n. 



Head, pronotum, and corium virescent ; lateral pronotal 

 angles and apical margin of corium black; posterior mar- 

 ginal area of pronotum and the scutellura castaneous brown ; 

 scutellum with a large discal cordate ochraceous spot ; body 

 beneath and legs virescent or ochraceous, probably altogether 

 virescent in fresh specimens ; head with the lateral lobes 

 transversely wrinkled ; antennae greenish ochraceous, first 

 joint passing apex of head, second a little shorter than third, 

 which is almost subequal to fourth, apex of fourth infuscate, 

 fifth mutilated in type ; pronotum somewhat sparingly 

 punctate, on basal area the punctures distinctly coarser, the 

 lateral angles somewhat longly subspinously produced and 

 distinctly recurved ; scutellum thickly punctate, the ochra- 

 ceous spot impunctate, extreme apex ochraceous and impunc- 

 tate ; corium thickly punctate ; membrane hyaline, distinctly 

 passing the abdominal apex ; apical margin of abdomen above 

 black ; rostrum slightly passing posterior coxae ; mesosternal 

 process not passing anterior margin of prosternum nor 

 between the intermediate coxae posteriorly produced ; abdo- 

 minal spine produced between the posterior coxae ; abdomen 

 beneath centrally longitudinally ridged. 



Long. 11 mm.; exp. pronot. angl. 7\ mm. 



Hab. Queensland (F. P. Dodd, Brit. Mus.). 



LXIV. — The Generic Arrangement of the Australian Murines 

 hitherto referred to " Mus." By Oldfield THOMAS. 



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



The recent separation by Mr. G. S. Miller* of the Mus 

 musculus group as a special genus, and the use of the name 

 Epimys for other rats previously called Mus, makes it a 

 pressing task to determine what restricted genera exist in 

 Australia and what their names should be. For to start 

 with calling them all Epimys and then later on to have to 

 change their names again would be most inconvenient, so 

 that an immediate revision is called for. There is also a 

 special reason for the Australian forms being sorted, as 

 among them occurs the type of " Pseudomys" a name actually 



* P. Biol. Soc. Wash, xxiii. p. 57 (1910). 



40* 



