474 Miscellaneous. 



described them as new, and it was only when I showed the specimens 

 to my friend Mr. Herbert Druce, and he recognized them at once as 

 a well-known South-American insect, that I discovered my error. 

 The soldier has never been to America in his life, and I conclude 

 some friend must have given them to him, but unfortunately the 

 supposition that they came from Sierra Leono put me off the scent 

 altogether. The simplest plan will be to withdraw the name and 

 treat the description as non est. G. T. Uethuxe-Bakee. 



Trichoniscus pygmseus, G. 0. Sars, a Woodloicse new to the British 

 Fauna. By llicnARD S. Bagnall, F.E.S. 



Early this month I discovered a tiny woodlouse that seemed to 

 find its home in soft and worm-riddled earth, and which upon 

 examination proved to bo Trichoniscus piji/iw^us, G. 0. Sars, a 

 species that, so far as I am aware, has not been taken since Prof. 

 Sars described it from Christiania in 1897. As I hope to describe 

 and figure this and other interesting Isopoda in a future part of the 

 ' Transactions of the Natural History Society of Northumberland, 

 Durham, and Newcastle-upon-Tyne,' the briefest account will 

 herein be suflScient. 



Trichoniscus pyf/mc^us, G. 0. Sars. 



Trichoniscus pi/gmcEus, G. 0. Sars, Crustacea of Norway, ii. p. 162, 

 pi. Ixxii. fig. 2. 



Easily recognized from other species of Trichoniscus by its small 

 size and by its comparatively broad antenna), which have the 

 flagellum only triarticulate. The dorsal face is roughened by 

 numerous tubercles arranged in transverse rows, whilst the lateral 

 parts of thoracic segments are edged with small spicules. Length 

 2 mm. and about one third the length in breadth. T. pi/^mcfus 

 boars a strong resemblance to Trichoniscoides albidus, Budde-Lund, 

 but apart from the smaller size may easily be separated by the three 

 visual elements of each eye, the eyes of Trichoniscoides being simple. 

 T. pifgniceus is, moreover, easily recognized from other species of 

 its genus by its ?low, rhythmic, and almost worm-like movements, 

 and here again it strangely resembles T. aJbidus, the habits of both 

 species, in fact, being practically identical. 



Taken in numbers in gardens at AVinlaton (Co. Durham), October, 

 and several from garden of Hancock Museum, Newcastlc-on-Tyne, 

 November 1900. 



Prof. G. S, Brady, F.R.S., and the Bev. Canon Norman, F.B.S., 

 have most kindly confirmed mj- identification of this species, and 

 through Dr. Norman's generosity I have had the additional satis- 

 iaction of examining co-types of both species mentioned in this short, 

 and hastily prepared note, from Prof. Sars, Norway. 



"\Viiilnton-on-Tvne, 

 X.noinber lOtli.'llHX'.. 



