360 THIi KKV. 1 U. It. STEUBING UX 



the sides angled. The side-phites of the peneon have no acute 

 points except that which foi-uis the bonndaiyof the emargination 

 in the hu-ge fourth pair. The fifth pair are bilobed and not pro- 

 duced backwards as in the congeneric species. 



The eyes have numerous small comj)onents. The fiagellum of 

 the first antennse shows fifteen joints, that of the second twenty- 

 nine, in each case the first joint being much the longest, the 

 second fiagellum about a fifth of its length longer than the first. 

 The mandibles and maxillaB are in close agreement with those 

 described by Ohevreux, but the maxillipeds difler by the greater 

 length of both the inner and the outer plates, the latter being 

 nearly as long as the palp ; a faint transverse line gives them the 

 appearance of being jointed. 



The gnathopods, peraeopods, and uropods also diflier but little 

 from those of the conipanion species, but the second joint of the 

 first gnathopod is here sinuous, not straight, and the second 

 joint of the third peneopod is here broader, with the hind margin 

 convex. 



The specimen, a female with a few large ova, measured about 

 9 mm., in near agreement with Dr. Cunningham's specimen, 

 4 lines long, but much less than the specimen of P. integricauda, 

 described by Chevieux as 15 mm. in length. Tlie colour as 

 preserved was marbled red. 



Locality. Whales Bay, Falkland Islands, May 17, 1910. 

 Cunninghaiu states that his specimen was dredged oS" Elizabeth 

 Island in February 1867. 



PanopUea joithlni Chevreux, 1912, strikingly distinguishe<l 

 from the present species by numerous spiniform processes, 

 curiously resenddes it in the uneinarginate iipper lip, long plates 

 of the maxillipeds, emarginate telson, and in the gnathopods. 



Fam. CE D I c E R o T I D .E. 

 1906, G^dicerotklce Stebbing, Das Tierreich, vol. xxi. p. 235. 



Gen. MoNocuLOPSis 8ars. 

 1892. Mo7wculopsis Sars, Crust. Norway, vol. i. p. 310. 



In many I'espects this genus agrees with J/o?ioc»iof^e.s.Stimpson. 

 Distinguishing features are the considerable size of the fourth 

 and fifth side-plates, the lelatively gieater length of the third 

 joint of the peduncle in the first antennas, and the somewluit 

 tapering form of the long sixth joint in the second gnathopods. 



MoNocuLOFSis vALLENTixi Stebbing. (Pis. VI. & VII.) 



Abstract P. Z. S. 1914, p. 30. (April 28.) 



From Monoadopsis longicornis (Boeck), the type of the genus, 

 the present species is distinguished chiefly by characters of the 

 gnathopods. In the first pair the process of the wrist or filth 



L20J 



