276 THE GENERA AND SPECIES OF AMYCTERID^, 

 9. — ACANTHOLOPHUS CRASSIDENS. 



Oblongo-ellipticus ater parce albido-squamulosus, fronte im- 

 pressa crista bispinosa spina posteriori longissima crassa, 

 tborace bifariam tuberculato lateribus spinoso, elytris 

 granulatis trifariam valide acute tuberculatis tuberculis 

 subapicalibus minutis apice mucronatis. 



Long. 8 lin., lat. 3 lin. 



Hab. King Greorge's Sound. 



This species is more or less covered all over with white 

 scales — in some places, especially on the sides, so thickly as to 

 give them a spotted appearance. The head is excavated behind 

 the crest, which rises up on each side into two connate spines ; 

 the anterior is small, and not acute : the posterior is thick, very 

 long, acute, and somewhat wing-shaped. The rostrum has a 

 small central ridge, and an elevated apex to its lateral margin. 

 The thorax has a row of five conical, nearly equal, tubercles on 

 each side of the medial line, and two acute and slightly recurved 

 spines on each side, the anterior one having a small tubercle 

 attached to it in front and behind. The elytra are granulated on 

 the back, and rugose on the sides, and have each three rows 

 of acute tubercles, the outer row consisting of fovir ; they have 

 also a few small tubercles near the apex, which is minutely 

 mucronate. 



10. — ACANTHOLOPHUS APICALIS. 



Oblongo-ellipticus subangustus niger parce cinereo-squamosus, 

 crista utrinque parva retrorsum acuminata vix bidentata, 

 thorace dorso bifariam tuberculato lateribus bidentato, 

 elytris seriatim granulatis trifariam tuberculatis serie media 

 usque ad apicem continuata. 



Long. 7| lin., lat. 2| lin. 



Hab. South Australia. 



This species is black, slightly clothed with cinereous scales, 

 and of an elongated form. The head is scooped out behind the 

 crest, which is short, pointed backwards, and scarcely bidentata. 

 The thorax scarcely differs from that of many of the other 



