captured in Montreal^ Upper Canada. 433 



yellow hue. The abdomen is oviform, somewhat depressed, 

 the anterior extremity, which has the appearance of having 

 been cut in a direct line across, projects slightly over the base 

 of the cephalothorax, and has some long, prominent black 

 hairs in front ; it is clothed with short adpressed hairs, and is 

 of a dull-black hue ; a transverse white band occurs at the 

 anterior extremity of the upper part, from each end of which 

 a short line of the same hue is directed backwards ,• in the 

 posterior region a white band suiTOunds a black space, which 

 comprises a few rather obscure, angular white lines that have 

 their vertices directed forwards ; the spinners are black, pro- 

 minent, and cylindrical, the inferior pair being the longest 

 and most robust ; the under part is of a dull-greyish colour in 

 the middle, the branchial opercula have a yellow hue, and the 

 colour of the vulva, which is somewhat crescent-shaped, is 

 black slightly tinged with red. 



Immature males that have to undergo their final ecdysis 

 resemble the adult female in colour, but the white bands and 

 lines are not so distinctly marked. 



In connecting with this Drassus the name of Miss Hunter, 

 of Carmarthen, I avail myself of the opportunity to express 

 the obligation I am under to that lady for placing at my 

 disposal the specimens of Arachnida collected by her in 

 Montreal. 



Drassus diver sus^ n. sp. 



Length of an immature male (not including the spinners) 

 •^ of an inch ; length of the cephalothorax ^, breadth -^ ; 

 breadth of the abdomen -^ ; length of a posterior leg -j-V j 

 length of a leg of the third pair \. 



The cephalothorax is oval, somewhat pointed before, con- 

 vex, glossy, thinly clothed with pale adpressed hairs, and has 

 a slight, narrow indentation in the median line of the posterior 

 region ; it is of a dull-yellow colour, the sides are tinged with 

 brown, and the lateral margins have a brownish-black hue. 

 The eyes are disposed on the anterior part of the cephalo- 

 thorax in two transverse, parallel, slightly curved rows, whose 

 convexity is directed upwards ; the intermediate eyes of the 

 anterior row are the largest and darkest-coloured of the eight, 

 and the intermediate ones of the posterior row are the smallest. 

 The falces are conical and vertical ; the maxillse are curved 

 towards the lip, enlarged and rounded at the extremity, and 

 have a small, oblique, transverse depression near the middle ; 

 the lip is oval, and rounded at the apex ; and the sternum is 

 oval ; the legs are moderately long j all are provided with 

 hairs, and the third and fourth pairs with sessile spines, and 



