EEV. 0. PICKARD-CAMBB.IDGE OJf ARCTIC SPlBEItS. 613 



On some Arctic Spiders collected during the Jackson- 

 Harmsworth Polar Expedition to the Franz-Josef Archi- 

 pelago. By Rev 0. PiCKAED-CAMBRIDaE, M.A., P.E.S. 

 (Communicated by Prof. G-. B. Howes, F.E.S., Sec.L.S.) 



[Eead 3rd March, 1898.] 

 (Plate 45.) 



A SMALL collection of Araneidea was kindly placed in my 

 hands by Mr. Harry Fisher, by whom they were collected at 

 Cape Flora, June and July 1896. Though very few in number 

 they are of much interest ; among them I find 



JErigone psychrophila, Thor. (5 & ? ad. 

 Erigone FisJieri, sp. n. 5 s ad., d s imm. 

 Erigone ? 5 iinm. : indeterminable. 



Erigoke pstchkophila, Thor. (PI. 45. figs. 1-7.) 



Erigone psychrophila, Thor. (Efvers. af Kono^l. Vet.-Akad. Fcirhandl. 



1871, p. 689, and Amer. Naturalist, 1878, p. 393; Cambr. Ann. & Mag. 



N. H., Oct. 1877, (4) vol. xx. p. 278, pi. viii. fig. 4. 



This is the finest species of this group that I have yet seen. 



In describing it (Z. c. supra) Dr. Thorell gave no figures, and 

 the only examples I have before seen were so dilapidated and 

 badly preserved that I could do no more (/. c. supra) than simply 

 give an idea of the very characteristic spur beneath the fore 

 extremity of the cubital joint of the male palpus. The speci- 

 mens now received are in much better condition ; it seems there- 

 fore worth while to give a description of the spider and more 

 elaborate figures, including one of the female as well as others 

 of the male spider. 



Adult male length 1| line ; female rather over 1| line. 



Cephalotliorax (of the male) deep rich black-brown ; short, 

 broad, very slightly longer than broad. Sides of the thorax 

 very rounded, and their margins armed with a close-set row of 

 sharp, prominent, curved, tooth-like spines. The fore extremity 

 of the caput obtuse ; the lateral marginal indentations at the 

 junction of the caput and thorax nearly obsolete. Caput 

 elevated and furnished above with a few minute bristle-bearins: 

 tubercles. Clypeus prominent, its height being about three- 

 fourths that of the facial space. 



linn. JOFEN. — ZOOLOGY, VOL. XXVI. 44 



