A NEW TRIBAL NAME 191 
CHAPTER XIII 
TRIBE III.—SCYLLARIDEA 
THE first antennee carry two flagella; the second have no 
scale. The trunk-legs are six-jointed through coalescence. 
The first pair are not much larger than the second, and 
simple or scarcely subchelate; the three following pairs 
are simple, and the fifth pair is simple in the male, more 
or less minutely chelate in the female. The branchiz are 
well developed ; epipodal plates on the first joint in the 
first four pairs of trunk-legs have podobranchie attached 
to them as distinct plumes. All these same limbs have 
arthrobranchiz, and the last four segments of the trunk 
have pleurobranchiz. The first segment of the pleon is 
without appendages. 
In this tribe Spence Bate says that the ova are very 
small, and that the young are hatched in a Phyllosoma- 
form. With the Astacidea and Stenopidea it forms 
what he calls the normal group of the Trichobranchiate 
Macrura. It contains two families, the Scyllaride and 
Palinuride, and the tribal name given it by Spence Bate 
was Synaxidea (see p. 46), derived from a new genus 
Synazxes, which he considered to combine some of the 
features of both families. As Synaves is itself a synonym, 
it was not possible to retain the tribal name derived from 
it, while Heller’s term loricata adopted by Paulson, Boas, 
and others, is not in conformity with the names of the 
neighbouring tribes. 
Family 1.—Scyllaride. 
The carapace is depressed, with orbits for the eyes 
excavated in the dorsal surface. The second antenne are 
