524 DESCRIPTIONS OP SOME NEW ARANEIDiE, 



Sternum yellowish, hairy, shield-shaped, tuberculate. 



Abdomen cordate, broader than long, overhanging base of 

 cephalothorax, convex; there are two large yellow lateral tubercles, 

 seated rather lower than midwaj between anterior and posterior 

 extremities; besides these there is a group of seven small tubercles 

 at the posterior extremity, distributed over three rows, the first 

 of which consists of two, separated by a space equal to about four 

 times their individual diameter; the second row contains three, 

 is curved, the curvature directed forwards, and each of this series 

 is separated from its neighbour by about three times its individual 

 diameter ; the anterior extremity is ornamented by a series of 

 eight rather large yellow patches, and six smaller ones; from near 

 the centre to posterior extremity there is a series of rather sharply 

 defined punctures; laterally and underneath the colour is yellowish- 

 grey. 



Epigyne a long transverse slit. 



Hab. — Mount Kembla. 



Obs. — This interesting specimen was taken by ~Sl\\ A. G. 

 Hamilton, to whom I am indebted for the privilege of describing 

 it. A full description of its nidification and cocoons will be found 

 in another portion of this paper. 



Family DRASSID^. 



Genus C h e i r a c a n t h i u m, C. Koch. 



Cheiracanthidm silaceum, sp. nov. 



(Plate xviii., figs. 1, la.) 



<^. Cephalothorax i mm. long, 3 mm. broad; abdomen 5^ mm. 

 long, 3 mm. broad. 



Cephalothorax yellowish-brown, glossy, moderately clothed with 

 short hoary hairs. Caput high, strongly arched, normal grooves 

 moderately distinct. Clypeus convex, with a moderately distinct 

 depression at the centre at junction of cephalic and thoracic 

 segments. Marginal band narrow. 



