268 KEY. O. p. CAMBEIDGE ON NEW SPIDERS. 



Palpi spring from lower outer corner of maxillae; one was entirely 



wanting ; of the other but two joints remained ; these were short anil 



strong. From the absence of palpi and the shrunken condition of ad- 



domen the sex of this spider could not beeertainly ascertained ; but 



I imagine it to have been an adult male. 



The specimen described is in the " Hope Collection " in the 



University Museum at Oxford; it was without label, but was 



believed to have come from New Holland. 



By the kindness and courtesy of Professor Westwood, M.A., 

 Curator of the Entomological Collections in the Oxford Mu- 

 seum, I am enabled to publish descriptions of the present and 

 many other interesting species of spiders contained in the collec- 

 tions under his charge. 



Eriodon granulosum, n. sp. PI. IX. figs. 7-13. 

 c? ad. Length 7 lines. 



In general form and structure this species resembles U. 

 formiddbile ; it is, however, much smaller ; its falces are longer 

 in proportion to the length of cephalothorax, which latter por- 

 tion is rough or granule us, especially on the caput, which is 

 almost tuberculate. Caput less elevated than in formidable^ but 

 the. occiput more prominent and semicircular. Cephalothorax 

 altogether broader in proportion, and its margins also are gra- 

 nulose. 



Jiyes. Four intermediate ones more nearly in a straight line than in 

 the former species J nor are the three groups into which they may 

 be separated so distinct from each other. 

 hegs longer, but relative length apparently similar, furnished with 

 hairs, some of which are rather long ; there are also some black 

 spines of different lengths beneath the metatarsi and tibiaj. 

 Palpi long and strong ; humeral joint curved upwards and inwards, and 

 slightly recurved at extremity ; cubital joint clavate ; radial much 

 longer, greatly but gradually enlarging from either end to the mid- 

 dle on underside ; digital short, bifid, or strongly notched at extre- 

 mity on inner side ; palpal organs consist of a circular lobe pro- 

 longed gradually into a long spine, which ends in a fine slightly 

 curved point ; at the base of this lobe, on the inner side, is another 

 smaller one, or, rather, an enlargement of the former. Colour of 

 cejihalothorax, both above and below, black, as is also that of the 

 legs and palpi ; the latter have strong steel-blue reflections in certain 

 lights, 

 Falces black towards extremities, on outer sides dark reddish in colour, 

 very powerful and massive, equal in length to cei)halothorax ; a cluster 



