On Fossil Arthropods in the British Museum. 541 



This small iiortlicrn species lias the ortliodont incisors of 

 ceroinus and the narrow choai;a3 of mitchelli, but is clearly 

 distinct from botli. It seems to ba the only Nuiomys that 

 occurs on the eastern coast of Australia, all the others being 

 from west of the Dividing llange. 



7. Notomys cervinus, Gould. 

 Hapalotis cervinus, Gould, P. Z. S. 1851, p. 127. 



Kize small; colour usually pale. Skull of about the size of 

 that o'i N. mitchdU, but the palatal foiamina larger and more 

 open, the nifst^pterygoid fossa broader anteriorly, tiie bullse 

 t^m iller and the incisors ortliodontj index about 75° to 77°, 

 those of N. mitchelli beiug decidedly opisthodont. 



Hub. The desert-re<^-ioti of Central Austialia. Type from 

 about 29° 6' S., 141° E. 



Type (lectotype). B.M. no. 53. 10. 22. 7. Collected 2Gtli 

 March, 1845, by Capt. Charles Scurt. From the Gould 

 Collection. 



This species and N. mitchelli occur together over a large 

 area of Central Australia, and are often found in the same 

 localities. 



Finally, Gould's ^^ Hapalotis conditor" is ])0S3ibly a 

 member of this g■enu^!, but tiiere is no specimen of it in the 

 British Museum, and species belonging to several genera 

 were inchuled in what he called " Hapalotis J'' 



There is, however, the skull of a quite distinct Notomys in 

 the collection, but, pending the discovery of any authentic 

 specimen of conditor, I will neither definitely assign it to that 

 S[)ecies, nor, on the other haml, describe it as new. 



LII. — Fossil Arthropods in the British Museum. — VII, 

 By T. D. A. COCKERELL, University of Colorado. 



A NEW lot of Burmese amber, presented to the Museum by 

 Mr. Swinhoe, contains only one insect which I am prepared 

 to describe, though there is a very interesting Psychodid fly 

 •which I hope Mr. Edwards will find time to investigate. 

 The one insect is, however, of unusual interest, being a bee. 

 It is closely allied to a .species occurring in Sicilian an)ber, 

 which is Middle Miocene. The other fossils now described 

 are from the Gurnet Bay Oligocene. 



