5L'8 MKKISTIC VARIATION. [PART I. 



compounded extra point- in Portion D. Duxs, Proc. I!. l'l<u*. Soc. 



. 



I: 



I i'.. 1^1. I. Lit]i<iili->i n/'i-tii-d, normal terminal joint of ambulatory leg. 

 II. S.-roiid lij-'lit lc_' dt' Nu. 809. (Both after Herklots.) III. Carcinnx mcenas, 

 No. sll, M cond uniliulatory leg. (After Duns.) P, normal terminal point. P\ 

 /'". extra terminal points in Position D. 



B. C It elate Appendages. 



(a) Tn'n t'.i'fru dactylopodites and double extra indc./'. 



Eriphia spinifrons $ : specimen of unusually large size, 

 normal but for It-it i-hi.-la shewn in Fig. 182, I and II 1 . The 

 'ln'l.-i bore normal left dactylopodite, LD, and index, LI; also, 

 upon pollex-border the structures shewn. These consisted of two 

 dactylopodites, II' 1). I.' I), working opposite each other on a com- 

 pounded double index, /''/, L'l, which had two toothed borders, 

 one for eaeh of them. This is therefore a pair of chelae repea i I 

 in Position l> [if indeed the dactylopodite mark the dorsal surface]. 

 Taken from 1 1 I:I;K LOTS, Arch. mVr/., 1S70., v. p. 412, PL XI. 



1 In rmnirxioii \\itli this case UK UK LOTS states that the rt. chela in the normal 

 ill.- larger ;nid othrrwisr ilittVrs fnun the- left (1 in 8 being reversed in this 

 rrsprrt). It ilors not si cm from the tiguri 1 that there was such differentiation 

 ih. f\ira piiir, luit in future cases this point should be looked for. 



