384 Parapherusa, Amathillopsis 



in 9 , resembling guathopod 1, but with shorter 5^1^ and longer 6*^ Joint. 

 Peraeopods 1 and 2 not veiy stout. Peraeopods 3 — 5, 2^ Joint oblong, 

 other joints, including finger, very stout, peraeopods 4 and 5 longer than 

 3^. üropods 1 — 3 not elongate, in uropod 1 rami as long as peduncle, in 

 uropods 2 and 3 shorter than peduncle. Telsou rather longer than broad, 

 sides converging to a truncate apex, which has a setule at each of the blunt 

 angles. Colour brown. h. 4 mm. 



South-Pacific (Port Jackson [New South Wales], Griffith's Point [Victoria]; 

 Lyttelton Harbour, and Timaru [New Zealand]). 



11. Gen. Amathillopsis Heller 



1875 Amathillopsis (Sp. un.: A. spinigera), Cam. Heller in: Denk. Ak. Wien, v.'db 

 p. 35 I 1885 A., (t. 0. Sars in: Norske Nordhavs-Exp., u6 Crust. I p. 181 | 1888 A., T. 

 Stebbing in: Kep. Voy. Challenger, u 29 p. 442, 859 | 1894 A., T. Stebbing in: Pijdr. 

 Dierk., v. 17 p. 27. 



Integument crustaceous, bodj dorsally carinate, with several sti'ongly 

 produced teeth. Head, rostrum short. Side-plates not very deep. Antenna 1 

 the longer, peduncle long, 2^ Joint as long as 1^*, accessory flagellum veiy 

 small. Upper lip with margin entire. IVIandible normal, 2'^ and 3*^ joints 

 of palp long. IVIaxilla 1, inner plate with 6 or 7 setae, outer with 11 only 

 slightly denticulate spines, 2*^ Joint of palp elongate, armed both on right 

 and left maxilla with spines and setae. Maxiila 2, inner plate setose or 

 only ciliated on inner margin. Maxillipeds, outer plates small, extending not 

 far along the 2*^ Joint of the long palp. Gnathopods 1 and 2 alike, sub- 

 chelate, 5*^ Joint as long as 6*^, palm ill-defined. Peraeopod 5, so far as 

 known, the shortest. Uropod 1, rami shorter than peduncle, outer ramus 

 shorter than inner. Uropod 3, rami lanceolate. outer a little shorter than 

 inner. Telson short, slightly emarginate. 



3 species. 



Synopsis of species: 



J Gnathopods 1 and 2, 5th Joint distally little expanded . 2. A. affiuis . . p. 385 

 \ Gnathopods 1 and 2, Sth Joint distally much expanded — 2. 



j Telson much shorter than peduncle of uropod 3 . . . 1. A. spinigera . p. 384 

 1 Telson subequal to peduncle of uropod 3 3. A. australis . p. 385 



1. A. spinigera Heller 1875 A. s., Cam. Heller in: Denk. Ak. Wien, i'.35 p.35 

 t.3 f. 17—22; t.4 f. 1—8 j 1885 & 86 A. s., G. 0. Sars in: Norske Nordhavs-Exp., v.6 

 Crust. I p.l81 1. 15 f. 2; Crust. II p.6l ] 1888 A. s., T. Stebbing in: E.ep. Voy.Challenger, 

 V.29 p.442, 865 | 1894 A. s., T. Stebbing in: Bijdr. Dierk., t7.17 p.28 | 1893 Amathillas. 

 (part.), A. Della Valle in: F. Fl. Neapel, v. 20 p. 684 t. 59 f. 88. 



Peraeon broad, pleon compressed; body carinate faintly onhead, andthence 

 strongly to pleon segment 4, peraeon segment 1 with 2 upstanding acute 

 processes, the other carinate Segments each with one, successively larger to 

 that on pleon segment 2, the next a little, and the next again much smaller 

 than that preceding it. Peraeon segments 1 — 4 with lateral margins produced 

 outward in acute processes. Head, rostrum very short, slightly deflexed, 

 not projecting beyond the lateral corners which are quadrate, bases of 

 antenna 2 conspicuous in the incision below. Side-plate 1 small, faintly 

 emarginate below, 2^ — 4*^ strongly emarginate below between 2 acute points, 

 h^^ subequal to 4**» in depth and much broader, both lobes acute, 6*^1 with 



