( 628 ) 



Modified Segments. — ? . The eighth abdominal tergite bears some hairs above 

 the stigma. There is a subapical row of about eight hairs, of which the npper ones 

 are the longest, the j>osterior ones being very small, and there is in addition a 

 number of hairs on the lateral surface (PI. XII. fig. .52). The eighth stcruite bears 

 a few hairs at the apex. The stvlet is conical and a little over twice as long as it 

 is basally broad. 



Length : ? , 3-08 mm. 



We have one ? of this species taken from Bettongia cuniculus, Gippsland, 

 Victoria, Augnst 1st, 1898. 



20. Ceratophyllus ochi spec. nov. (PI. XI. fig. 41) ; XII. fig. 54). 



Head. — The front of the head is much more rounded in the S than in the ? . 

 There are two rows of bristle.s in front of the eye, the first row consisting of six 

 short ones, the second row of three very long ones, the S bearing in addition one 

 moie long bristle standing above the npper one of the second row, but nearer to the 

 first row. On the liinder part of the head there are four bristles above tlie antenual 

 groove, the first standing near the base of tlie groove, and the last belonging to 

 the subapical row. This row is, in addition, represented by two more l)ristles 

 placed farther upwards. Above the second supra-anteunal bristle there is a 

 smaller one placed a little farther back. The small hairs above the antennal 

 groove stand in a row, and are more numerous in the g than in the ? , there being 

 about twelve in the S and si.\ in the ?. The head is minutely dotted on the back. 

 The long hairs at the apex of the second segment of the antenna, of which hairs 

 there are about ten in number, are longer than the club of the antenna in the ? and 

 shorter in the S, the club being much more elongate in the c? than in the ?. 

 The rostrum is much shorter than the anterior coxa, the last segment being about 

 one-fourth longer than the last but one. The labial palpus consists of five segments. 



Thorax. — The pronotum bears one row of bristles and a comb of seventeen or 

 eighteen teeth. The meso- and metanotum bear each two rows of bristles, the first 

 row consisting of three, the second of fonr or five on each side. The mesonotum 

 is much longer than the metanotum ; it bears a very few short hairs at the 

 basal edge. On the epimerum of the metathorax there are seven bristles (3.1.3), 

 the middle one of the first three and the ventral one of the last three being anterior 

 in position to the other bristles of the respective rows. 



Abdomen. — The abdominal tergites bear each two rows of bristles, the anterior 

 row containing on the middle segments three bristles on each side, and the posterior 

 row five. The stigma, which is somewhat pear-shaped, stands above the ventral 

 bristle of the second row. Tergites 2, 3 and 4 hear a short stout apical spine on each 

 side. The sternites of segments 2 to 6 bear in the cj a row of two or three, in the ? 

 three or four bristles and an additional bristle in front. On the basal sternite of the 

 ? there are besides, near the upper edge, which is shallowly emarginate, some small 

 hairs and one long bristle. On the seventh sternite of the ¥ there are twelve to 

 fourteen bristles on each side, standing nearly all in a strongly cnrved row. The 

 seventh tergite bears two long apical bristles, of which the upper one is about 

 one-third or nearly one-half shorter than the lower one. In the ? there is a third 

 bristle standing beneath the two, being intermediate in length. 



Iiegs. — The mid- and hindcoxae bear two bristles jiosteriorly at the apex, the 

 bristles being separate. At tiie anterior edge of the hindcoxa there are five or six 

 bristles, and on the outerside a vertical row of five. The mid- and hiudfemora 



