270 Mr. J. Blackwall on the Structure^ Functions, (Economy, 



148. Neriene longipalpis, 



Linyphia lonffipalpis, Sund. Vet. Acad. Handl. 1829, p. 212 ; Vet. 



Acad. Handl. 1832, p. 259. 

 Erigone atra, Blackw. Lond. and Edinb. Phil. Mag. Third Series, 



vol. iii. p. 195 ; Research, in Zool. p. 324. 

 dentipalpis, Koch, Die Arachn. B. viii. p. 90. tab. 278. 



fig. 659, 660. 

 Argus longimanuSy Walck. Hist. Nat. des Insect. Apt. t. ii. p. 346. 



This species is widely distributed in England and Wales, and 

 is remarkable for its ascents into the atmosphere, and for the 

 extraordinary organization of the cephalo-thorax and its appen- 

 dages in the male. The sexes pair in June, and the female 

 deposits 6 or 7 spherical eggs of a pale yellowish white colour 

 in a subglobose cocoon of white silk of a slight texture, which 

 measures about ygth of an inch in diameter, and is usually 

 attached to the inferior surface of stones. 



It is a fact deserving of notice, that Neriene longipalpis can 

 preserve an active state of existence for some days when sub- 

 merged in water. 



I have not included the Theridion dentipalpe of M. Wider 

 (Museum Senckenbergianum, B. i. p. 248. taf. 17. fig. 1) among 

 the synonyma of this spider, because it appears to differ from 

 it in structure and colour ; on the latter particular, however, little 

 stress can be laid, as the specimens collected by M. Wider were 

 preserved in spirit of wine. 



149. Neriene fusca, 

 Neriene fusca, Blackw. Research, in Zool. p. 382. 



Neriene fusca occurs on rails and under stones in Lancashire 

 and Denbighshire. It pairs in the month of June. 



150. Neriene gibbosa. 



Neriene gibbosa, Blackw. Linn. Trans, vol. xviii. p. 653. 

 Argus gibbosusy Walck. Hist. Nat. des Insect. Apt. t. iv. p. 513. 



Specimens of this spider were discovered under stones in a 

 moist pasture at Oakland in May 1838. 



151. Neriene tuber osa. 



Neriene tuberosa, Blackw. Linn. Trans, vol. xviii. p. 654. 



Argus tuberosus, Walck. Hist. Nat. des Insect. Apt. t. iv. p. 514. 



In May 1838 an adult male of this species was found under 

 a stone in a moist pasture at Oakland. 



