270 Oediceroifles. üedicorotidanim spoeies incertao se(]is. Synopiidae . 



which are subequiil. Telson small. rounded oval, with spiiiules and plumose 

 setules ou rounded apex. L. 15 mm. 



South- Atlantic (Falklaiid Islands). Depth 1893 m. 



4. O. ornatus (Stebb.) 1883 Acanthostepheia ornata, T. Stebbing in: Ann. nat. 

 Hist., ser. 5 ».11 p. 203 | 1888 Oediceroiäes o., T. Stebbing in: ßep. Yoy- Cliallenger, 

 V.29 p. 855 t. 64 ] 1893 Halimedon ornatus, A. DellaValle in: F. Fl. Neapel, r. 20 p. 536 

 t. 58 f. 33—35. 



Back imbricate and diseontinuously carinate, with large raedio-dorsal 

 tubercles, and on pevaeon and pleon Segments 1 and 2 smaller lateral ones, bind 

 margin of peraeon segments 1 — 7 and pleon segment 1 fringed with small 

 tubercles. Side-plate 1 much produced forward, 4*^» excavate behind. Head 

 dorsally ridged, with conspicuous frontal process, constricted at base, prismatic 

 in cross section; lateral corners rounded. Eyes long, separated only by the 

 narrow carina, occupying frontal process to its acute tip, remaiuing dark in 

 spirit, ocelli numerous. Antenna 1, peduncle slender, short, P^ Joint longer 

 than 2*^, 3'^ feeble, suggesting that the missing flagellum is small. Antenna 2, 

 penultimate Joint of peduncle much longer than ultimate, l''* Joint of flagellum 

 caiTying.a calceolus, rest missing. Upper lip, distal margin broad. Lower 

 lip, outer lobes very broad, character of inner not clearly ascertained. Mandible, 

 2^ Joint of palp a little longer than 3<^. Maxiila 1, inner plate very large, 

 with 5 setae. Maxiila 2, inner margin of inner plate wholly fringed with 

 setae. Gnathopods 1 and 2, 5*^ Joint shorter than 6***, with a rather massive 

 setose or spinöse lobe, 6^^ oval, broadest at base, the very long setose palm 

 moderately defined from the short bind margin. Peraeopods 1 — 5 all more 

 or less broken, what remained showing the characters usual in the family. 

 üropod 3 not as long and not reachiug so far back as uropods 1 or 2; 

 rami lanceolate, spinöse, a little longer than peduncle. Telson small, oblong, 

 slightly narrowing to the scarcely emarginate apical border. L. o 15 mm. 



Bass Strait (East Moncoour Island). Depth 70 m. 



Oedicerotidarum species incertae sedis. 



Oedicerus novi-zealandiae Dana 1853 & 55 0. n., J. D. Dana in: U. S 

 expl. Exp., V. 13n p. 934 t. 63 f. 7a h ] 1861 0. n., A. Boeck in: Forh. Skand. Naturf., 

 Mode 8 p. 650 j 1862 0. novae-zealandiae, 0. novi-zealandiae, Bäte, Cat. Amphip. Brit. 

 Mus., p. 104 t. 17 f. 1 } 1876 0. novae-zealandiae, 3Iiers, Cat. Crust. N. Zealand, p. 126 | 

 1886 0. neo-zelanicus, (Gr. M. Thomson &) Chilton in: Tr. N. Zealand Inst., v. 18 p. 149. 



Generically near to Exoediceros (p. 239), but with finger on peraeopods 1 and 2 

 well developed. Colour greenish. L. 4 mm. 



South-Pacific (New Zealand). Rock-pools. 



20. Fam. Synopüdae 



1853 Subfam. Synopinae, J.D.Dana in: U. S. expl. Exp., ?;. 13n p. 981 j 1886 

 Synopidae, Bovallius in: N. Acta Soc. üpsal., ser. 3 v. 13 nr. 9 p. 3 j 1888 S., T. Stebbing 

 in: Rep.Voy. Challenger, t?. 29 p. 798. 



Integument thin, pellucid. Head triangulär, not inflated, produced over 

 bases of antennae 1 and 2. Side-plate 3 the largest. Eyes large, coalesced 

 at top of head, usuaüy with small lateral pair below. Antenna 1 shorter 

 than antenna 2, peduncle short, P^ Joint of flagellum large. accessöry flagellum 



