BY W. MACLEAY, JUN., ESQ. 289 



Long. 8 lin., lafc. 2f lin. 



Hab. Victoria River, Mitchell's Exp. 



. This species is of a somewhat narrow elongated form, and is 

 closely covered with cinereous scales. The head is short, retuse, 

 and very much excavated, behind the raised transverse band 

 which connects the crests on each side. The crests are strongly 

 tridentated, the posterior tooth being rather acute and pointed 

 backwards, the middle one obtuse and short, and the anterior 

 still more obtuse and directed forwards. There is also a small 

 tubercle at the apex of the rostrum on each side, with a small 

 trians:ular emargination in the middle. The thorax has six 

 tubercles on each side of the medial line, one between them and 

 the sides near the apical margin, and two on the sides, the 

 anterior one being near the middle, and consisting of a small 

 tooth in front, a large pointed one in the middle, and a very 

 minute one behind, the posterior being pointed and near the base. 

 The elytra are scarcely broader than the thorax and three times 

 the length, with three rows of strong acute tubercles on each, 

 (the outer having only four tubercles) and with two lines of 

 granules between the suture and the fii-st row of tubercles, one 

 between the first and second rows, and one between the second 

 and third rows, while the sides are somewhat striato-punctate, 

 transversely rugose, and interspersed with setigerous granules. 



31. — ACANTHOLOPHDS CRENATICOLLIS. 



Oblongus niger cinereo-squamosus, capite excavato medio 

 carinato inter oculos utrinqae trituberculato, thorace piano 

 granulato lateribus dentato, elytris striatis interstitiis 

 granulatis interstitiis 1-3 et 5 ante apicera tuberculatis 

 lateribus ampliatis apice mucronatis. 

 Long. 8| lin., lat. 3| lin. 

 Hab. New South Wales. 

 This species also, like the last, has four crests on each side of 

 the head and rostrum, one is near the apex of the i^ostrum, the 

 other three are near the eyes, and are formed by the dentations 

 of a long elevated narrow tubercle. The posterior tooth is slightly 

 pointed backwards, the others are obtuse. The head is con- 



