276 Rev. 0. P. Cambrido-e on some new 



the ceplialothorax being rather the darkest. The markings 

 on the abdomen appear to be of the same character as those of 

 T. Derliamii] but they were ahnost obsolete, being onlj visible 

 just above the spinners. The palpi and legs are furnished 

 with numerous long hairs and some long, but not very strong, 

 spines ; the abdomen also is clothed with numerous long coarse 

 hairs. 



The only example examined had been damaged by an 

 attempt at preservation in turpentine, whereby the eyes were 

 too mucli concealed to admit of any critical examination ; they 

 appeared, however, to resemble very nearly those of the species 

 before mentioned. For the same reason the exact form of the 

 genital aperture was scarcely plain ; but it seemed to differ 

 decidedly from that of T. Derhamii. And, on the whole, I 

 think it is of a hitherto undescribed species. 



The example above described Avas found in Lieut. Giffard's 

 cabin, in Dobbin Bay, on the 28th of August, 1876, during 

 the Arctic expedition under Capt. Nares. 



Fam. Theridiides. 



Gen. Eeigone, Sav. 



Erigone Whynvperi^ sp. n. PI. VIII. fig. 2. 



Adult male, length Ij line. 



The cephalothorax is of a deep, shining, black-brown colour ; 

 the caput is convexly elevated, and the abdomen is of a dull 

 but glossy black ; the legs are yellow-brown, tinged with 

 reddish brown ; and the palpi are of a similar colour, the digital 

 joint, however, is darker, and tlie palpal organs are deep red- 

 brown. 



This spider is very nearly allied to several others, such as 

 E. longipaljns^ Sund., E. dentipaljns^ Wid., E. atra^ Bl., E. 

 remota^ L. Koch, E. arcif/ca, White, and E. psychropMla, Thor., 

 all of which it closely resembles in form and general structure ; 

 it is, however, smaller than the last two species ; but, in the 

 absence of a lengthened series, size is scarcely to be depended 

 upon, as I have found that several of the above species vary 

 considerably in regard to the size of diiferent individuals. 

 The present may be distinguished from all those mentioned 

 above, as well as from some others also closely allied, in several 

 minor points of structure, and es])ecially by the form of the 

 radial joint of the male jjalpus and the structure of the palpal 

 organs. From E. dentipalpis, Wid., E. promiscua^ Camb., 

 and E. syriaca, Camb., it may be separated at once by the 



