Crustacean Fauna of South Africa. 213 
D. antarctica); Port Jackson, 2 fathoms (Haswell: P. tenuwipes and 
brevicornis) ; Paterson Inlet, N.Z.,10 fathoms (Thomson : P. obtusa) ; 
Kerguelen Island, 28 and 127 fathoms (Stebbing: 7. kergueleni) ; 
Puget Sound (Calman: P. osborni) ; Ceylon (Walker: 7. antarctica) ; 
Maldives (Walker: P. atolli) ; McMurdo Sound (Walker : P. 
antarctica) ; Seychelles and Wasin, B.E.A., 10 fathoms (Walker: 
P. atolli); South Orkneys; South Georgia, and Saldanha Bay, 25 
fathoms (Chilton). 
Gen. GUERNEA Chevreux. 
1868. Hellerra Norman, Ann. Mag. Nat. Hist. ser. 4, vol. 2, p. 418. 
(non Ebner 1868.) 
1887. Guernea Chevreux, Bull. Soc. Zool. Fr., vol. 12, p. 302. 
1887. Prianassus Hansen, Vid. Meddel. ser. 4, vol. 9, p. 82. 
1890. Guernea Stebbing, Ann. Mag. Nat. Hist. ser. 6, vol. 5, p. 192. 
1893. 5 Della Valle, F. u. Fl. Neapel. vol. 20, p. 570. 
1904. i, Walker in Herdman’s Ceylon Pearl Fish. Suppl. Rep. 
. 17, p. 266. 
1906. = Stebbing, Das Tierreich, 21, p. 521. 
GUERNEA LAEVIS Chevreux. 
1887. Guernea laevis Chevreux, l.c. p. 328. 
1904. 55 » Walker, l.c. p. 267, pl. 4, fig. 26. 
WLo0G 8s, coalita Stebbing, Le. 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, Ist joint oblong, twice length of 2nd, 3rd half length 
of 2nd, flagellum not quite equal to 1st joint, 4-jointed. 
Second antenna, Ist-3rd joints short and broad, 4th nearly twice 
length of lst-3rd together and rather broader, the inferior margin 
