286 Mr. H. B. Brady on a new 



tetorus, Schonli., and arc numerously represented in Australia; 

 Mitrastefhus, Redt., is at present the only known exponent of 

 the group in New Zealand. 



Axides dorsalis. 

 A. ovatus, niger, sat dense griseo-albido-squamosus, supra squainis 

 elongatis erectis adspersus ; capite inter oculos profunde foveato ; 

 rostro piceo, basi capiteque dense squamosis ; antennis ferrugineis ; 

 prothorace antice tubulato-constricto, ante medium transversim 

 quadri-subfasciculato, basi fusco-nebuloso ; scutello elevato, ovato ; 

 elytris sulcato-punctatis, interstitiis convexis, singulis postice 

 callosis, apicibus rotundatis, dorso plaga magna fuscescente, in 

 medio nigra et postice bene determinata, ornatis ; corpore infra 

 pedibusque dense albido-squamosis, squamis elongatis subdepressis 

 notatis. Long. 2| lin. 



Hob. Sydney ; North Australia. 



Tyckreus sellatus. 



T. subovatus, piceus, dense albido-squamosus, prothoracis basi ely- 

 trisque plaga communi fusca ornatis ; capite antice convexo ; 

 rostro nigro-piceo, tenuiter subvage punctulato; antennis piceis; 

 prothorace subconico, utrinque antice constricto, postice subparal- 

 lelo, supra tuberculis quatuor, transversim sitis, instructo, apice 

 producto margineque incrassato ; scutello inviso ; elytris pro- 

 thorace manifeste latioribus, humeris haud callosis, lateribus 

 subparallelis, apicibus rotundatis, supra fortiter convexis, punc- 

 tato-sulcatis, interstitiis elevatis et plus minusve tuberculato- 

 fasciculatis, basi utrinque subcallosis ; corpore infra pedibusque 

 dense albido-squamosis j femoribus infra dente fere obsoleto 

 instructis. Long. 3^ lin. 



Hah. New South Wales (Rope's Creek), 



The type of Tychreus (T. camelus) has two large median 

 tubercles on the elytra, and is of an indefinitely varied 

 greyish colour ; it has, therefore, a look quite distinct from 

 the above, with which, however, it appears to be fairly 

 congeneric. The last joint of the funicle, as in the last genus, 

 appears to form part of the club, but the line of separation is 

 sufficiently clear. 



XXXVIII. — On Archaidiscus Karreri, a new Type of 'Carboni- 

 ferous Foraminifora. By Henry B. Brady, F.L.S.,F.Gr.S.* 



[Plate XI.] 



In working out some of the obscure Microzoa of the Carboni- 



* Communicated by the Author, having been read in the Biological 

 Section of the British Association, September 1873. 



