Mr. NlWPOBT M the Class Myriapoilu. Order Chilopoda. 1 1 7 



This is a very distinct species, readily identified. It has the basilar segment large, hut 



rowed posteriorly ; mandil)idar tooth small; dental plates large, with the external an^rlc- 

 elongated, twisted and punctured; teeth six. \,r\ large, black -riaiigulai . 



rated on the margins, and with deep longitudinal sulci. Hasilar joint of the DOfl 

 pair of legs with five black, acute, alternating spines on the internal superior margin, 

 and six, arranged in two longitudinal series. DO the inferior surface, time in 

 series; those of the inner one irregular. Lateral appendages slightly elongated, witli 

 the apex bifid, and a single spinula on the inferior margin, with the on the Upper, 

 Preanal scale subquadrate, narrowed posteriorly, with the margin slight! - <d. 



7. Heter. flava, corpore pedibusque bate flavis, segmento cephalico viridi. entennu auranti- 



acis, dentibus 6 minutis nigris, pedum postrcmorum articulo basali gracili subquadnito 

 tibia longiore in superiicie interiore spinis ~> nigra armato. — Long. unc. .J. 

 Hab. In Nova Hollandia, ad fluvium Cygnorum. (v. in Mu*. D. Hope.) 



This species is allied to H. sulcicornis, but differs in having tin posterior 1< and 



more slender, and the spines larger, more acute, slightly hooked, and of an inl 

 black. Those on the superior margin are arranged in equidistant alternating 1 

 On the inferior surface there are six spines, three of which forma single longitudinal 

 series on the external, and three on the internal margin ; the middle one of the 

 coalescing at its base with the corresponding one in the outer series. The lateral anal 

 appendages have each two spines on the side, and from three to four small ones on 

 the superior edge. The preanal scale is subquadrate, with the border slightly emar- 

 ginated. 



8. Heter. megacephala {Tab. XL. fig. 9.), corpore brevi olivaceo, capita magno con-. 



antennis mandibulis labio appendicibusque analibus lateralibus rufescenti-oli 

 dentibus 6 triangularibus acutis, pedum postremorum articulo basali tibiali longiore : 

 spinis in margine interiore 5 longis acutis 6que in supcrficie inferiore magnis c quibus 

 5 longitudinaliter biseriatis sextus intermedius.— Long, unc. 3{. 

 Scolopendra megacephala, Newp. I. c. p. 99. sp. 35. 



Hab. In Nova Hollandia ad Portum Essington, Gilbert, {v. in Mus. Brit.) 

 The distinctive characters of this species are the size of the head and the general short- 

 ness of the body, as compared with other species. The cephalic segment is very con- 

 vex, large, rounded anteriorly, with the posterior margin straight; antennas reddish 

 olive, and pubescent at the apex ; basilar segment very- large, convex, almost quadrate ; 

 mandibular tooth small, with a deep incision at the inner side of the joint. Labium 

 smooth; longitudinal suture distinct; dental plates large, reddish olive with the pos- 



3 I 2 



