454 Mr. Francis P. Pascoe on 



elonofato, in medio clorsi sito^ serie exteriore tuberculia 

 tribus subagqualibus, magis elevatis, tuberculo humerali 

 falciforme, extrorsum serrato. 



Long.' 6^ lin. 



Hah . — Victoria . 



The above three species are very similar at first sight 

 to T. scvlpturatus, Waterh., hitherto the only representa- 

 tive of the genus, but a moment's examination shows 

 that they are distinct. It may facilitate the discrimina- 

 tion of these species if we throw their diagnoses into a 

 tabular form, thus; — 



Prothorax uot granulate. 



Each elytron with ume or ten tubercles in two 



series ........ T. scidpturatus. 



Each elytron with four or five tubercles in two 



series ........ T. incanus. 



Prothorax granulate. 



An inner tubercle on each elytron, granulate 



and gradually ruuuiug out to the base . T. excursus. 



An inner tubercle confined to the middle of 



each elytron ...... T. eleratus. 



Amorphorhinus, Lacordaire, Gen. vi. 318. 

 Amorpliorhinus polyacanthus. 



A. oblongus, aterrimus, remote et breviter squamosus; 

 fronte longitudinaliter plicata, callo superciliari conico ; 

 rostro antice abrupte gibboso, in medio late sulcato ; an- 

 tennis nigris, funiculo breviusculo ; prothorace trans- 

 verso, lateribus tuberculato - spinoso, supra fortiter 

 granulato, granulis apice squama parva instructis, in 

 medio late sulcato; clytris ovatis, lateribus parum rotun- 

 datis, apice declivibus haud obtusis, profunde scrobicu- 

 latis, interstitiis rugosis, singulatim seriebus duabus 

 tuberculorum munitis, tuberculis alte elevatis conicis, fere 

 aequalibus, spina valida infra humeros armatis ; corpore 

 infra pedibusque opacis, his vage setulosis. 



Long. 4 lin. 



Hah. — Western Australia. 



The sculpture of the rostrum, the ovate elytra ■svith nu- 

 merous conical tubercles — varying, however, in size in 

 different individuals — and the spine beneath the shoulder, 

 readily differentiate this species from -4. auntralis, Germ., 

 the only other member of the genus. 



