A new tegastid 
225 
Basis of P4 (Figure 19) 95 pm long, slightly wider 
than bases of P2 and P3 and with a posterior lamel¬ 
la on a level with insertion of endopod. Seta insert¬ 
ed at 0.8 relative to length of basis. P4-enp two- 
segmented, with 1 : 021 : 0 setae. Enpl 112 pm 
long, 35 pm wide, basal portion lamellar, widest at 
0.7, then abruptly narrowing; with carina along 
posterior flank. P4-enp2 almost cylindrical, 60 pm 
long and about 6 pm wide. P4-exp three- 
segmented, segments 22, 67 and 62 pm long 
respectively. Outer edge of exp2 and exp3 with 
row of denticles. Suture between expl and exp2 
distinct only on outer flank. Exp with 0:1: 322 :1 : 
1 setae. Hollow seta on P4-exp2 extends somewhat 
beyond tip of exopod. Three inner setae on exp3 
inserted almost equidistant along margin; basal 
seta solid, with filaments; next seta strongly 
sclerotised, 140-150 pm long, with harpoon-like 
apex; third seta very slender and less than half the 
length of the other setae. Outer of two apical setae 
somewhat stouter than inner seta; outer seta with 
serrate outer edge and filaments along inner edge; 
inner seta with filaments on either side. 
P5 (Figure 20) wide and flattened. Baseoendopod 
and exopod almost completely fused. Lamellar 
ventral margin and elongate ridge enclosing 
narrow groove. Area of baseoendopod with four 
slender, slightly plumose setae and short setula. 
Posterior margin of P5 with two ridge-like lamellae 
which enclose an elongate groove; edges of 
lamellae (Figure 21) delicately serrate. Posterior 
margin with three slender setae, apically with two 
small setae (Figure 22). 
Furcal rami 10 pm long; with seven setae, the 
longest 40 pm long. 
Egg sac with four 120 pm long eggs. 
Male 
Length 427-458 pm. Ventral margin and 
posteroventral angle of cephalic shield more 
Figures 20-26 Syngastes dentipes sp. nov.: 20, left P5, lateral aspect, $ ; 21, posterior portion of right P5, medial aspect, 
$; 22, posterior portion of right P5, lateral aspect, 2 ; 23, lateral aspect, <3; 24, left Al, lateral aspect, 6 ; 
25, three terminal segments of right Al, lateral aspect, 6 ; 26, right P5, lateral aspect, 6. Scalelines= 50 pm. 
