Mr. J. Blackwall on Sicilian Spiders. 395 



first, and tlic third pair is the shortest ; each tarsus is termi- 

 nated by three cL-iws ; the two superior ones arc curved and 

 pectinated, and the small inferior one is inflected near its base. 

 The palpi resemble the leps in colour ; the radial is stronger 

 than the cubital joint, and the dif^ital joint, which is of an ob- 

 long-oval form pointed at the extremity, and of a dark-bi'own 

 hue, is convex and hairy externally, concave within, com- 

 prising the ])alpal organs, which are iiighly developed, promi- 

 nent, complex in structure, and of a dark and a light red-brown 

 colours intermixed. The abdomen is oviform, clothed with 

 adpresscd hairs, convex above, and projects over the base of 

 the ccphalothorax ; it is of a veiy dark-brown hue, and is 

 encompassed by a broad band of white hairs ; a similar band, 

 extending along the middle of the uj)pcr part, comprises a 

 dark-brown fusiform mark ; two oval white spots, placed 

 transversely, occm- on the under part, immediately below the 

 branchial opercula. 



Genus Sphasus, Walck. 



Sphasus italicus. 



Sphasus italicus, Walck., Hist. Nat. des Insect. Apt. torn. i. p. .374 ; 



Blackw., Journal of the Linuean Society, Zoologry, vol. x. p. 409. 

 f/ciitilis, Koch, Die Arachn. Band v. p. 97, tab. 170. fig. 404. 



Family Salticid^. 

 Genus Salticus, Latr. 



Salticus infentics. 



Silticus iiitentus, Blackw., Journal of the Linnean Society, Zoology, vol. x. 

 p. 413, tab. 15. fig. 5. 



Salticus petiliis, n. sp. PI. VIII. fig. 2. 



Length of the male -^ of an inch ; length of the ccphalo- 

 thorax J-, breadth -^ ; breadth of the abdomen -pV ; length of 

 an anterior leg -^ ; length of a leg of the third pair ^. 



The minute intermediate eye of each lateral row is nearly 

 equidistant from the eyes constituting its extremities. The 

 cephalothorax is long and somewhat quadrilateral, with a 

 shallow depression behind the posterior pair of eyes ; it slopes 

 abruptly downwards at the base, projects a little beyond the 

 falces in front, is clothed with short yellowish hairs, and is of 

 a dark-brown colour. The falces are small, subconical, and 

 armed with a few teeth on the inner surface ; the maxillfe are 

 enlarged and somewhat divergent at the extremity ; and the 

 lip and sternum are oval. These ])arts are of a dark-brown 

 colour, the extremity of the maxillpe and the apex of the lip 



