Indian Deep-sea Dredging. 



283 



antennal scale large ; mandibular palp robust, with terminal 

 joint bifurcate ; dorsal carina of the last four abdominal terga 

 terminating posteriorly in a spine ; postero-lateral angles of 

 second or third to fifth abdominal pleura minutely mucro- 

 nate ; legs with or without minute exopodites ; dactjlopodites 

 of the last two pairs of legs lanceolate, smooth and convex 

 below, flat or concave and fringed with hairs on both edges 

 above. 



Branchial formula of Aristceopsis Eidwardsiana (Johnson) : — 



^Arep. + 



+ 



+ 6 = 22+eiJ. 



It differs from Aristceus in having a fully developed 

 ( — plume and epipodite) podobranchia xii. and an epipodite 

 XIII., with a regularly decreasing series of pleurobranchite, 

 the anterior five of which are degenerate as to their pinnules, 

 but not reduced in length, and hence cannot be called rudi- 

 mentary. 



Type Penceus Edwardsianus^ Johnson, P. Z. S. 1867, 

 p. 897, ? =Aristeus coralinus, A. M.-Edw. in ' Challenger ' 

 Macrura, 1888, pi. xxxii. fig. 10, c? • 



\_Ohs. Funchalia^ which is entered by Spence Bate as a 

 synonym of his Aristeus {^= Aristceopsis) ^ has, as Johnson's 

 description proves, nothing whatever to do with either Aristce- 

 opsis or Aristceus^ and probably does not even belong to the 

 Aristaeine alliance at all, having, among other things, an 

 unarmed abdomen and the mandibles in the form of " long 

 sickle-shaped shears which cross each other from opposite 

 sides of the mouth." Now all the Aristseine Penseids without 

 exception have an armed abdomen and mandibles which 

 depart little, if at all, from the normal form.] 



17. Aristceopsis Edwardsiana, Johns. 



Penceus Edivardsianus, Johnson, P. Z. S. 1867, p. 897, $ . 

 Aristeus Edioardsianus, Miers, P. Z. S. 1878, pp. 308, 309, pi, xvii, 

 fig. 3, mandibular palpus. 



19* 



