Indian Deep-sea Dredging. 283 



antennal scale large ; mandibular palp robust, with terminal 

 joint bifurcate ; dorsal carina of the last four abdominal terga 

 terminating postciiorly in a spine ; postero-lateral angles of 

 second or third to (iftli abdominal pleura minutely mucro- 

 nate ; legs with or without minute exopodites ; dactylopodites 

 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 Arista^opsis Edwardsiana (Johnson) : — 



5^ep. + 5 + 6 + 6 = 2-2+ep. 



It differs from Aristwus in having a fully developed 

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

 XIII., with a regularly decreasing series of pleurobranchiaj, 

 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 Edwardeianus, Johnson, P. Z. S. 1867, 

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

 Macrura, 1888, pi. xxxii. fig. 10, (^ . 



[Obs. Funchalia, which is entered by Spence Bate as a 

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

 description proves, nothing whatever to do with eithev Aristce- 

 opsis or Aristaus, and probably does not even belong to the 

 Aristgeine 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 Aristffiine Pena^ids 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 Edimrdsiamis, Miers, P. Z. S. 1878, pp. 308, 809, pi. xvii. 

 fig. 3, mandibular palpiis. 



19* 



