216 rev. o. p. Cambridge on [Mar. 4, 



of each lateral pair are nearly contiguous to each other, and seated 

 on a tubercle. 



The legs are long and rather slender ; their colour is yellow, and 

 they are furnished with hairs, long, slender, erect bristles, and a few 

 not very long black spines ; their relative length is 1, 4, 2, 3, those 

 of the first pair being greatly the longest ; each tarsus ends with 

 two curved black claws and a small scopula or claw-tuft of hairs. 



The palpi are similar in colour to the legs, slender, moderately 

 long, and furnished with hairs and bristles ; the humeral joint is 

 curved, and is equal in length to that of the cubital and radial 

 together ; the radial joint is double (if not rather more than double) 

 the length of the cubital, and has on its outer extremity a very 

 small, rather bent, dark reddish-brown apophysis ; this apophysis is 

 slightly cleft at its extremity. The digital joint is short, of an 

 oval form, and does not exceed in length half that of the radial 

 joint ; at its hinder extremity on the outer side it is continued in 

 the form of a rather tapering, sharp-pointed, nearly straight spur, 

 which runs just above the radial apophysis, and is about half 

 the length of tbe joint itself. The palpal organs are neither com- 

 plex nor highly developed ; they are of a somewhat flattened 

 globular form, with an exceedingly slender, filiform black spine 

 in contact with their inner margin. 



The falces are similar in colour to the cephalothorax ; they are 

 very strong, projecting, and prominent near their middle in front, 

 but not divergent. 



The maxillce are of normal form ; and their colour, with that of 

 the sternum, is yellow. 



The labium is oblong, emarginate at the apex, and of a blackish- 

 brown suffused colour. 



The abdomen is of moderate size and oval form ; its colour is a 

 dull luteous yellow, sparingly clothed with silky yellow hairs, and 

 thinly covered on the sides and upperside with whitish-yellow 

 cretaceous spots or small patches, many of them being nearly 

 conterminous, and leaving a clear short sword-shaped or slightly 

 cruciform marking on the fore part of the upperside. 



A single adult male of this species was contained in Mr. Melliss's 

 St- Helena collection. 



Fam. Agelenides. 



Genus Amaurobius. 



Amaurobius crucifer, sp. n. (Plate XXIV. fig. 6.) 



Adult female, length 2 lines. 



The cephalothorax, when looked at from above, has more the 

 look of that of Spiders of the genus Agelena than the typical Amau- 

 robius ; it is rounded behind and strongly constricted laterally for- 

 wards, the caput being produced or as it were drawn out. It is of 

 a pale yellow-brown colour, thinly clothed with hairs ; and the normal 

 grooves and indentations are marked with convergent black-brownish 

 lines and suffusions ; the lateral margins are also of the same colour. 



The eyes are in two transverse rows on the fore part of the caput, 



