ON THE ANASPIDACEA, LIVING AND FOSSIL. 921 
In the males the endopodites of the first two pairs of 
abdominal limbs are curiously modified as copulatory styles 
(text-fig. 29). They are large, hollow, club-shaped organs, 
well armed with setz and hooks, disposed in a characteristic 
pattern, and the endopodites of the second segments fit into 
hollow spaces excavated in the first in a piston-like manner. 
The exopodites of these limbs are of a normal form. 
The presence and structure of these copulatory styles is a 
distinctly Eucaridan feature, recalling similar structures in 
the Euphausiacea and Decapoda. 
TEXxtT-FIG. 30. 
Anaspides tasmaniz. Telson and uropods. 
The abdominal limbs of Przanaspides show a long 
setose exopodite, much as in the living forms; the endo- 
podite was apparently much reduced, as in living Anas- 
pidacea. The reconstruction of Palzocaris also shows 
uniramous abdominal appendages, so that they also apparently 
agreed well with the living forms. The vague reconstruction 
of Gampsonyx shows us apparently biramous limbs with the 
two branches of equal length, but it is very likely that the 
long setee on the exopodites have been confused with endo- 
podites, an error that might occur in reconstructing Pre- 
anaspides, 
The sixth abdominal limbs or uropods and the telson 
