336 



Yorkshire Naturalists at Malham. 



Phalangiimi saxatile C. L. Koch, were noted near Janet's 

 Force. Altogether, forty-two species of tru6 spiders, four of 

 harvestmen and one pseudoscorpion were noted. 



In the following complete list, those marked ' W ' were 



obtained by Mr. Winter only ; 

 uninitialled, by both : — 



F ' by myself only ; and those 



Oonops pitlchev Tempi. F. 

 Drassus lapidosus Walck. F. 

 Clubiona diver sa Camb. F. 

 Amauvobius fenestralis Stroem 

 Cryphoeca silvicola C. L. Koch 

 Coelotes atropos Walck. 

 Textrix denticulata Oliv. F. 

 Hahnia montana Bl. F. 

 Robertus lividus Bl. F. 

 Linyphia peltata Wid. 

 L. hortensis Sund. 

 Labulla thoracica Wid. 

 Leptyphantes blackivall 

 L. ericcBUs Bl. F. 

 L. angnlatus Camb. F. 



Bathyphantes concolor Wid. 



Hilaira excisa Camb. (Tarn; 



Tmeticus abnormis Bl. F. 



Micvoiieta conigera Camb. 



CEdothorax tubevosus Bl. F. 



Dicmnbium tibiale Bl. F. 



Neriene rubens Bl. F. 



Enidia bituberculata Wid. F. 

 (Tarn). 



Disniodicus bifyons Bl. 



Diplocephahis fitscipes Bl. F. 



F. 



Kulcz. 



F. 



F. 



D. cristatus Bl. 



1). permixtus Camb. F. 



D. latifrons Camb. F. 



Entelecava trifrons Camb. F. 



Altnyriolus pusillus Wid. W. 



Pocadicnemis puniila Bl. F. 



Metopobactriis prominulits Camb. W, 



Cornicularia cuspidata Bl. W. 



Meta segmeiitata Clerck. 



A/. meyiancF Scop. 



Epeira diademata Clerck. F. 



Xysticus cristatus Clerck. 



Taventitla pulvernlenta Clerck 



(handed in) 

 Lycosa cnneiitata Clerck. F. 

 L. pill I at (I Clerck. 

 L. palustris Linn. 

 Xeoii reticitlatits Bl. F. 



PlrilimgiiDii saxatile C. L. Koch. 

 Megahiiuus insignis Meade. W. 

 Oligolophus alpinns Herbst. 

 Xenhistoina liigiibve O. F. ^lull. F. 



OhisiuD! itniscorum Leach. 



CoNXHOLOGY. — Mr. F. Booth writes : — The conchological 

 section devoted its attention to the Tarn and the Tarn plateau. 

 The greater part of Saturday was devoted to the investigation 

 of the Tarn, bv the hand-scoup where the water was shallow, 

 and a small trawl net in the deeper parts. The number of 

 species was large, but nearh^ all were in a very immature stage. 

 Mature specimens of Limncca stagnalis var. fragilis-vafiegata, 

 recorded on the Union's previous visit, were only represented 

 by dead shells which were occasionally dredged ; all the live 

 specimens being very small. Bithynia tentaciilata, Valvata piscin- 

 alis, and two other species were found adult, and of good size. 



Some time' was spent in collecting Pisidia, in an endeavour 

 to ascertain the number of species of these small bivalves 

 inhabiting the Tarn. Of those collected, Mr. J. \V. Taylor 

 suggested from a casual surve}', that there would be four species. 

 Other interesting things were a small though much elevated form 



Naturalist', 



