Crustacean Fauna of South Africa. 217 
in one 18 mm. long there is a small but deep notch just proximal to 
the tooth near the hinge. 
Length: § 22 mm., ? 18 mm. 
Colour : Whitish, eyes black. 
Locality : Lambert’s Bay, Clanwilliam Diy. February, 1898. (R. 
Pattison.) 19,2 2? 2 ; Kommetje (Atlantic coast, Cape Peninsula). 
1897. (Dr. W. F. Purcell.) ¢ ¢; Atlantic Coast, near Cape of Good 
Hope. 29/9/13. (K.H.B.) ¢ go, 2 2 and young. (S.A.M. Nos. 10018, 
A255, and A2532 respectively.) 
TALORCHESTIA QUADRISPINOSA Nn. Sp. 
(Plate XXVII. Figs. 29-32.) 
1836. Orchestia fischerii Guerin, Iconogr. ou Regne Anim. pl. 26, fig. 3, 
and 1845. Explication des Planches, 
p. 22. (mon M. Edwards. ? 1828 and 
1830.) 
1910. Orchestoidea ,, Stebbing, Gen. Cat. S.A. Crust. p. 459. (non 
M. Edwards. ) 
Bearing a strong superficial likeness to Orchestoidea fischerii 
(M. Edw.) 
Body broadly rounded, not compressed. Eyes subrotund, their 
distance apart dorsally equal to or less than their greatest diameter. 
Anterior lobe of 5th side-plate as deep as 4th side-plate, length of 5th 
not greater than that of two peraeon segments. 
Pleon segments 1 and 2 each with 2 (not 3 as in M. Edwards’ 
species) medio-dorsal upstanding spines in adult ¢, obscure in im- 
mature males, segment 3 with 2 very obscure tubercles, pleon unarmed 
in 2, segments 4 and 5 not scabrous (as they are in O. fischerii 
M. Edw.), postero-inferior angle of 3 quadrate, acutely but slightly 
produced. 
Telson about as broad as long, apex with a very shallow emargination 
in the adult only, in immature specimens apex subacute, upper surface 
with numerous spines. 
First antenna, Ist and 2nd joints subequal, 5rd a little longer, 
flagellum equal to 3rd joint, 6-jointed in ¢,5 in 92, reaching just 
beyond end of penultimate peduncular joint of 2nd antenna. 
Second antenna, ultimate joint equal to penultimate plus antepen- 
ultimate, which are subequal, all three joints spinose, penultimate 
with 2 transverse rows of spines on dorsal surface as well as an apical 
15 
