498 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



2. Chelae pubescent. 



(a) Left chela median dorsal carina on hand. 



(i) Three long carinae on right hand. 

 Hand ovate. 

 Fairly pubescent. 



E. excavatus. 

 (ii) No carinae on right hand. 



R. chela wrist = length hand. 

 Very pubescent. 



E. pubescens. 



(b) Left chela without carina. 



(i) Eyestalk longer than A 2 peduncle and 

 little shorter than A 1 peduncle. 



Chelipedes densely pubescent. 

 E. cuanensis. 

 (ii) Eyestalk as long as A 2 peduncle, but 

 shorter than A x peduncle. 



R. chela slightly pubescent. 

 Wrist spiny on inside. 

 E. forbesii. 



The genus Eupagurus is of world-wide distribution. 

 E. bemhardus is found in Scandinavian and British seas, 

 Bay of Biscay and Mediterranean. There are doubtful 

 records from the Atlantic shores of North America 

 (probably E. acadianus), Behring Strait to Kamtschatka. 

 It seems to be vertically distributed from low-water mark 

 to great depths. 



The Paguridea are almost unrepresented in 

 geological strata. Ortmann mentions one species, known 

 by its chelae only, in Hungarian Eocene, but he is 

 somewhat sceptical as to its authenticity. Lorenthey 

 (Math. u. Nat. Ber. Ungarn, Bd. 24, 06) has since 

 recorded three species from Oligocene and Miocene. As 

 in the previous case only the chelae have been found. 



