Mr. Blackwall's Descriptions of new Species of Spiders. 651 



mandibulis maxillis labio sterno palpisque flavescenti-brunneis ; pedibus 

 gracilibus flavescenti-brunneis nigro-fasciatis ; abdomine sordid^ luteo, 

 fascia nigra median^, in anteriori parte antic^ triangiilari postic^ subra- 

 inosa, in series duas macularum parvarum ante filatoria coalitarum desi- 

 nente. 



Maris pedes anteriores posterioribus longiores. 



Length of the female ^^th of an inch ; length of cephalo-thorax -^ ; breadth 

 ^ ; breadth of abdomen -^ ; length of an anterior leg ^ ; length of a 

 leg of the third pair ^. 



Anterior part of the cephalo-thorax compressed ; sides depressed and marked 

 with furrows diverging from the upper part to the margins ; in the medial 

 line of the posterior region there is an indentation ; colour yellowish 

 brown, with blackish margins, a longitudinal row of small black spots on 

 each side, and a black mark of a triangular form, whose vertex is directed 

 backwards, immediately behind the eyes, which are seated on black spots. 

 Mandibles long, powerful, divergent at the extremity, armed with a few 

 teeth on the inner surface, and inclined towards the sternum, which is 

 broad and heart-shaped. These parts, with the maxillae, lip aind palpi, 

 are yellowish brown, the sternum and lip being the darkest. Legs slen- 

 der, of a yellowish brown colour, with black bands ; first and fourth pairs 

 the longest and equal in length, third pair the shortest. Abdomen ovi- 

 form, thinly covered with hairs, very convex above, projecting over the 

 base of the cephalo-thorax ; it is of a dull yellow colour, with a black 

 band in the medial line of the upper part, extending from before rather 

 more than a third of its length ; the anterior portion of the band is tri- 

 angular, with its vertex directed forwards ; the posterior part is narrower 

 and somewhat ramified ; from the termination of the band extends a lon- 

 gitudinal row of irregular black spots, on each side of the medial line ; a 

 few of these spots unite immediately above the spinners, and form there 

 short, curved, transverse lines ; numerous streaks and patches of black 

 occur on the sides, the largest of which are on their anterior part ; the 

 under part, and the plates of the spiracles, are dull yellowish brown. The 

 sexual organs are prominent, and have a curved process in connection 



VOL. XVIII. 4 Q 



