1 :}3 



localities, in 'M of tlio 33 specimens, i. e. in 94 per cent., the 

 carpus was slightly shorter than the chela, in 2 nearly of eqnal 

 length. Only in one single young male from the Oosterschelde 

 the carpus proved to be slightly longer than the chela. In this 

 variety the carpus of 2^1 legs usually appears a littte less slender 

 (Fig. 1/') than in the typical species, only 6 to 7-times as long 

 as thick at the distal extremity : with regard to this character I 

 must, however, remark, that the carpus varies rather much and 

 in some individuals it shows the same slender form (Fig. In) as 

 in the typical L. S(jnilla from Scandinavia. The shape of the 

 chela and the relative length of the fingers are the same as in 

 the typical species. 



General distribution : The variety infeniicdid is at present with 

 certainty known from the coast of the dutch province of Zeeland, 

 from tlie English Channel (Le Portel, Straits of Calais, South- 

 coast of England) and occurs also all round the Irish Coast, 

 according to the observations of Leach, H. Milne Edwards, 

 Coucii, Th. Bell, Canon Norman, Stanley Kemp and myself. 

 According to Stanley Kemp it occurs also in Scotch waters, but 

 it appears now desirable to examine wliether the Scotch form 

 belongs to the variety uifennedia or to the typical species of Norway. 



The variety infenneclia occurs, no doubt, also on the whole 

 west coast of France and perhaps should the specimens from Portugal, 

 recorded by B. Osorio, in : Jornal Sciencias Math., Phys. e Nat. 

 2« Serie N^ I, Lisboa, 1889, p. (54, also be referrcd to it. 



Lcditder Hqifi/Ja (Linné), var. eler/ans Rathke. 

 PI. XI, Fig. br— le^ 



Palaemon elegmis, H. Rathke, Zur Fauna der Krym, Ein 

 Beitrag, in : Mémoires présentés a T Acad. Imp. Sciences de Saint- 

 Pétersbourg par divers savans et lus dans ses assemblees. T. III, 

 St. Pétersbourg 1837, p. 370, Tab. IV, fig. 5. 



Palaemon squilla^ J. Dana, Unit. States Explor. Exped. Crus- 

 tacea, 1852, p. 580, pi. 38, fig. 0. 



