[f)5J DECAPODA FROM ALBATROSS DREDGINGS. 



Specimens examined. 



409 



Locality — 

 N. lat. W. long. 



38 52 40 



38 53 00 



39 33 00 

 39 49 00 



37 40 30 



38 44 00 

 35 49 30 



69 24 40 

 69 23 30 

 68 26 45 

 qg 28 30 

 To 37 30 

 72 38 00 

 74 34 45 



Depth. 



Fath. 

 1,735 

 1,731 



1, 555 

 1,467 



2, 221 

 1,209 



843 



Specimens — 



l2/- 



"Witht 



eggs. 



I refer this species to Diivernoy's geiius Aristeus with much hesitation. 

 It appears to have the same branchial formula as the species of Amfez^s 

 described bv Bate from the Challenger collections and is apparently 

 congeneric with them, but, as pointed out by Bate, Duvernoy's species 

 is figured and described as having no epipods at the bases of the fourth 

 perfBopods, and on this account Bate " proposes ])rovisionally " the name 

 PlesiopeiKEus for such as have the epipods at bases of the fourth i^erce- 

 opods, though he describes his species as Aristeus. According to the 

 description and figures, Duvernoy's species differs also, though not 

 pointed out by Bate, in wanting pleurobranchine on the twelfth and 

 thirteenth somites, so that the branchial formula of his species, as nearly 

 as can be made out from the description and figures, would be : 



The figure of the mandibular palpus of Duvernoy's species does not 

 show the form of the distal segment characteristic of the species just 

 described nor of Aristeus Uclwardsianus, as figured by Mier s, and it is 

 described as composed of three articulations — an evident mistake. It 

 does not seem at all improbable that Duvernoy may have overlooked 

 the epipod and the two pleurobranchia?, and that his species is really 

 congeneric with the species here described. 



Bate's Aristeus armatus, from " the Australasian Archipelago, in the 

 North Pacific and South Atlantic," is, perhaps, closely allied to the 

 species here described, or even specifically identical witii it, but is not 

 described witli enough detail to show its affinities. 



HEPOMADrS TENER, sp. nOV. 



(PlatolX, Fig.s.7, 8.) 



1 refer this species, of which only a single imperfect specimen was 

 taken, to Bate's genus llepomadus with some hesitation. Bate charac- 



