Crustacean Fauna of South Africa. 213 



D. antarctica) ; Port Jacksou, 2 fathoms (Haswell : P. tenuipes and 

 brevicornis) ; Paterson Inlet, N.Z., 10 fathoms (Thomson : P. obtusa) ; 

 Kerguelen Island, 28 and 127 fathoms (Stebbiug : T. kergueleni) ; 

 Puget Sound (Caiman : P. osborni) ; Ceylon (Walker : T. antarctica) ; 

 Maldives (Walker : P. atolli) McMurdo Sound (Walker : P. 

 antarctica) ; Seychelles and Wasin, B.E.A., 10 fathoms (Walker : 

 P. atolli) ; South Orkneys ; South G-eorgia, and Saldauha Bay, 25 

 fathoms (Chilton). 



GEN. GIJERNEA Chevreux. 



1868. Hettena Norman, Ann. Mag-. Nat, Hist, ser. 4, vol. 2, p. 418. 



(uon Ebuer 1868.) 



1887. Guernea Chevreux, Bull. Soc. Zool. Fr., vol. 12, p. 302. 

 1887. Prianassus Hauseu, Vid. Meddel. ser. 4, vol. 9, p. 82. 

 1890. Guernea Stebbing, Ann. Mag. Nat. Hist. ser. 6, vol. 5, p. 192. 

 1893. Delia Yalle, F. u. Fl. Neapel. vol. 20, p. 570. 

 1904. Walker in Herdman's Ceylon Pearl Fish. Suppl. Eep. 



17, p. 266. 

 1906. Stebbing, Das Tierreich, 21, p. 521. 



GUERNEA LAEVIS Chevreux. 



1887. Guernea laevis Chevreux, I.e. p. 328. 



1904. Walker, I.e. p. 267, pi. 4, fig. 26. 



?1906. coalita Stebbiug, I.e. pp. 521, 735. 



The division between pleon segments 3 and 4 not strongly marked, 

 segments 5 and 6 fused and evenly rounded, with a dorsal median 

 groove between two keels, neither the 4th segment nor the keels 

 serrate. 



Side-plate 1 shallower than the other side-plates, narrowed below to 

 subacute apex, 2-4 subequal in depth, rounded below, 2 straight, 3 

 and 4 slightly curved backwards, hind margins concave, posterior lobe 

 of 5 equal in depth to 4, anterior lobe depth of posterior lobe, 7 

 slightly larger than 6. Pleon segment 3 with postero-inferior angles 

 rounded. 



Telson ovate, cleft nearly to base, apices subacute, each with a 

 setule. 



First antenna, 1st joint oblong, twice length of 2nd, 3rd half length 

 of 2nd, flagellum not quite equal to 1st joint, 4-jointed. 



Second antenna, lst-3rd joints short and bi-oad, 4th nearly twice 

 length of lst-3rd together and rather broader, the inferior margin 



