434 Mr. J. Blackwall on Spiders 



the tarsi are sparingly supplied with hair-like papillae on their 

 inferior surface ; the fourth pair is the longest, then the first, 

 and the third pair is rather the shortest ; each tarsus is termi- 

 nated bj two small, curved, pectinated claws ; the imperfectly 

 developed palpi are rather long. The colour of these parts is 

 pale yellow, the lip having a tinge of red. The abdomen is 

 ovifoim, somewhat depressed, and its anterior extremity, 

 which has the appearance of having been cut in a right line 

 across, projects very slightly over the base of the cephalo- 

 thorax ; it is thinly clothed with adpressed pale hairs, and is 

 of a dull yellowish-white colour, the sides having a brownish- 

 black hue, and the colour of the branchial opercula is yellow ; 

 two spots placed transversely on the upper part, near to its 

 anterior extremity, and a transverse bar situated near the 

 middle, are composed of coarse black hairs ; the spinners are 

 prominent and cylindrical, the inferior pair being the longest 

 and most robust ; their colour and that of the coccyx is yel- 

 lowish-white. 



The specimen from which the description was made was the 

 only one of the species comprised in the collection. 



Drassus vasifer. 

 Drassus vasifer, Walck., Hist. Nat. des Insect. Apt. t. i. p. 620. 



A single adult female of this species, which appears to be 

 little known to arachnologists, was contained in the collection. 

 I have also received a specimen of it from Toronto ; and 

 Walckenaer remarks that it has been found in the United 

 States of North America. 



' Family Ciniflonid^. 



Genus Ergatis, Blackw. 



Ergatis diligenSy n. sp. 



Length of an immature female -yV of an inch ; length of 



the cephalothorax Vo? breadth ijV j breadth of the abdomen —^ ; 



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



pairVi- 



The eyes, which are nearly equal in size, are disposed on 

 the anterior part of the cephalothorax in two transverse rows j 

 the intermediate ones of both rows form a square, and those 

 of each lateral pair are placed obliquely on a tubercle and are 

 near to each other. The cephalothorax is compressed before, 

 convex in the cephalic region, but depressed and rounded in 

 front ; the sides and base are depressed, the former being 

 marked with furrows, which converge towards the middle ; a 

 red-brown band extends along the middle, the colour of the 



