2i8 /ui/coiicr : .Votes on Hdi-vcsl-Spu/rrs. 



dillicult to discriniinati- u Hl-u ackilt, it is otherwise with the 

 sexes, but the male may i^enerully be disting-uislied from the 

 temale by the smaller size and more intense colourinif of his 

 body, his lons^-er and more slender lej^s, and in some kinds by 

 the curious development of his falces. 



The subjoined list records fifteen species for the County 

 of York — thirteen of m\- own collectings, the work of three 

 months —July to September, 1905 — and two from other sources. 

 One of the thirteen has been previously taken in Yorkshire, and 

 it is very probable that some of the others, owing- to their abun- 

 dance, have been also, but if so the fact is unknown to me. 

 They liave all been verified or named by the Rev. F. Pickard 

 Cambridg-e, whose ' Monograph of the British Phalangidea,' 

 1890, is indispensable to students of this small, compact, but 

 very negflected group. From this work the table below for 

 purposes of identification has been compiled, and in them the 

 abbreviations P^.E. — eye eminence; C.T. =the cephalothorax ; 

 Leg's I., II., III., or IV. =the first, second, third or fourth pair 

 of leg's respectively ; F..S. =the three frontal spines which stand 

 in a line near the front edg'e of the cephalothorax of the g'enus 

 0//<^.)/'>/>/i//s C. Koch. First refer the specimen to Table .A to 

 find the family to which it belong^s, next under the family chosen 

 in Table B pick out the g'enus, and then under the selected 

 g'enus in Table C determine the species. Finally compare the 

 specimens with a detailed description to eliminate error. 



T.VBLH A FAMIIJFS. 



1. Transverse folds bjhiiui U.K., 2 : palpi with 



terminal claw... .. .. ... P/ia/iimr/idie. 



Transverse folds behind E. K., none: ]y,i\p\ 



without terminal (law ... ... ... 2 



2. Coxai of lei^s free : C.T. not |)r(jloni;'ed into 



a hood... ... ... ... .W'liins/oinatidir. 



Coxfe of leg's sjldered to undL-rside of body : 



C.T. prolonged into a hood .. .. Troj^ii/iiiie. 



Tahi.k B— r.FMFR.V. 

 I. I-.\.M. rn.\i..\.\(.iii).K. 



1. Margin of C.T. without lateral ])i)res . .St/rro.s-oi/Ki Lucas. 

 Margin of C.T. with latei-al pores 2 



2. E.E. without tlenticulai ... /,/n/itniiiiii C. ivoch. 

 E.E. will) denticuhv ... . .. ,^ 



3. Palpi without or with only small apophyses 4 

 Palpi with more oi- less strong ap(jphyses 5 



Naturalist, 



