and little-knoivn Arctic Spiders. 279 



the specimen above described, indicating the exact locality of 

 its capture ; but two females, much crushed and injured in 

 mounting, though probably of this species, were labelled 

 82° 33' N. lat., June 21 and 24, 1876, and perhaps this may 

 have been also the locality in which the male was found. 



Both sexes have been found in Spitzbergen, vide T. Thorell, 

 /. c. sujyra. 



Erigone provocans^ sp. n. PL VIII. fig. 5. 



Adult male, length 1 line. 



The cephcdothorax is of a short oval form, very nearly 

 round ; the lateral constrictions on the margins of the caput 

 are scarcely perceptible, and the normal grooves and indenta- 

 tions are not strong. The occiput is rather gibbous, and has 

 two or three slender erect bristles on it, but it has no distinct 

 or abrupt elevation. The margin of the clypeus is rounded, 

 and the height of it is about half that of the facial 

 space. The colour of the cephalothorax is yellowish brown, 

 the sides much suffused with a darker hue, and marked with 

 some fine radiating lines indicating the ordinary thoracic 

 grooves ; a dark line also runs from the hind central eyes to 

 the hinder part of the thorax, enlarging in a diamond-form at 

 the posterior part of the occiput. 



The ei/es are very small, but in the usual general position ; 

 they form a transverse oval figure, each line being equally 

 curved in an opposite direction. Those of the hind central 

 pair are smallest, and separated from each other by about two 

 eye's diameters, the interval between each of them and the 

 lateral of the same row on its side being considerably greater. 

 The fore centrals are contiguous to each other, and with those 

 of the hind central pair form a short oblong figure, whose 

 anterior side is shortest ; those of each lateral pair are seated 

 rather obliquely and contiguously on a strongish tubercle ; the 

 foremost of the lateral eyes appear to be the largest of the 

 eight. 



The legs are slender and tolerably long, their relative length 

 being, as far as could be ascertained, 4, 1, 2, 3 ; their colour 

 is a pale yellow-brown; and they are furnished with fine hairs 

 and a very few slender erect bristles. 



The palpi arc similar in colour to the legs, nut very long, 

 but tolerably sti'ong. The cubital and radial joints are very 

 short, the latter spreading out on all sides in a sort of mush- 

 room shape; the digital joint is of an oval form, and its 

 length equals, or perhaps exceeds, that of the cubital and 

 radial joints together ; the palpal organs are tolerably complex, 



20* 



