FISHERY BULLETIN: VOL. 72, NO. 1 



0.2 mm 

 a.b.c 



0.2 mm 



cl,e,f,g,h 



'I^CV 



Figure 11. — PoiUelUna morii sp.n., adult male: a. right Al, dorsal view (Lusiad 11-66); b. variation in ThIV-V spine, 

 lateral view (left to right: Shellback 105; Troll 25; Lusiad 11-55; Troll 32A; 2 specimens Monsoon 6); c. ThIV-V, P5 

 and first two segments of urosome, lateral view (Lusiad V-78); d. P5, posterior view (same as a); e. P5 chela, lateral 

 view (same as c); f. apex of distal segment of P5 enlarged (same as c); g. aberrant chela showing a weakened subapical 

 spur on distal segment, posterior view {Anion Britnn /-58); h. aberrant chela, lateral view (same as g). 



in plinnata, Re being less than 1.8 times longer 

 than Ri, median 1.45:1, range 1.22-1.76:1, 55 

 specimens (see Figure 29); Ri typically with 

 two relatively equal apical spines (Figure 9g, 

 i; Table?). 



Attached spermatophore observed in four 

 specimens (see Figure 33f-h, Table 5), appear- 

 ance and orientation similar to that in platy- 

 chela except for less cement on ventral side of 

 urosome, especially on anal segment. 



Male 



Right furcal ramus differing from that in 



plumata in having a relatively shorter length 

 (see Figure 26), median length-to-width ratio 

 1.93:1, range 1.80-2.07:1, 39 specimens, but 

 overlapping extensively with its congener from 

 the eastern equatorial Pacific (described below). 

 Left P5 with Rel considerably longer than 

 that in plumata: in morii length of left P5 

 Rel to length of right furcal ramus ranges 

 from 1.08 to 1.26:1, 20 specimens (see Figure 

 30). 



Etymology 



This patronym commemorates the late 



82 



