577 



GENUS WALCKENAERA, Bl. 



WALCKENAERA FLAVirES, Bl. (p. 159). 



„ iiii'LANA, Cambr. (p. 162). 



During tho past suramor (1879) I have mot with fresh exam- 

 ples of Walckenaera implana, Cambr., and am now satisfied that 

 it is idontical with tho spider named for me many years ago by 

 Mr. Blackwall, Walckenaera Jlavipes, Bl. 



Walckenaera crassiceps, Westr., Cambr. (p. 151). 



„ affinitata, Cambr. (p. 150). 



I havo recently had an opportunity of comparing the types of 

 tho above two species with a fresh exarnplo of what I boliove to 

 be Walckenaera crassiceps (Westr. )rocoived from Germany, and with 

 a drawing of Erigone crassiceps, Westr., kindly made for me by 

 Dr. Thorell from Westring's type specimen, and I am compelled 

 to conclude that they are all of the same species. The specific 

 name crassiceps has priority, having boon conferred by M. 

 Westring some little time previous to the description of the 

 spider by myself as Walckenaera affinitata. The less apparent 

 gibbosity of tho occiput in the type of Walckenaera affinitata was 

 evidently occasioned by an accidental injury; in all other 

 respects the specific characteristics of tho two spiders (pp. 150, 

 151) are precisely similar. 



Walckenaera hiemalis, Bl. (p. 160). 



,, similis, Cambr., Proc. Zool. Soc, 1872, p. 761, 



pi. xlvi., fig. 18. 



A careful comparison with each other of fresh and moro 

 perfect examples of the above two spiders proves that they are 

 undoubtedly identical species. Mr. Black wall's name has 

 priority, having been conferred many years ago. 



