APSEUDES TALPA. 151 



ward direction (as have also the sixth and seventh pairs) ; 

 in all these legs the hand is armed near the base of the 

 under margin with a strong spine, against which the 

 extremity of the finger, when closed, impinges, this joint 

 being dilated in the two posterior pairs, and strongly 

 ciliated along both its inner and outer margins and apex, 

 the finger being planted anteriorly within the palm of 

 the concave hand. 



The ventral appendages of the five segments of the 

 tail are free, consisting, in each segment, of two pairs of 

 delicate, elongate-ovate plates, each pair attached to a 

 basal, three-jointed footstalk, the first joint of which 

 consists of a plate, having the posterior margin serrated 

 and furnished with several long bristles, the anterior 

 margin being fringed with plumose hairs, as also the 

 inner margin of the third joint, as well as both those of 

 the subtending plates. 



The sixth segment is semi-ovate, and furnished at each 

 side with an appendage formed of a single-jointed pe- 

 duncle, supporting one long and one short filamentary 

 branches formed of numerous articuli, increasing in 

 length as they diminish in size towards the distal ex- 

 tremities. 



We only know the female of this species. 



The incubatory pouch is formed of very slender, semi- 

 transparent plates, which permit the large eggs enclosed 

 to be distinctly visible. 



The general colour of the animal, when alive, is 

 yellowish-white, the hairs and divisions between the seg- 

 ments of the body partaking more of the former colour. 



Colonel Montagu took this species on the large scallop 

 {Pecten maximus) at Salcombe, on the South Devonshire 

 coast. It has also been taken off Guernsey, by the Rev. 



