Nicholls — Two New Vhrvatoicids. 
191 
liorse-slioc shaped in transverse section, vitli margin entire, not up- 
turned. 
E. kershawi, s}). nov., IMates XXVII, XXYin and XXTX, 
¥igs. 34-39. 
Specific Diapiwsis. Body robust, surface scnle clad with very 
few scattered hairs, dorsal surfaci' transversely ridged; head 
considerably shorter than coinl)iiied length of first ainl second 
peraeon segments aiid with strongly marked vertical groove near 
posterior border. Eyes well develo]K‘d, strongly convex, with many 
ommatidia. Peraeon distinctly c(mi])ressed, first segment narrow, 
widening somewhat ventrally, scarcely free from head; second, third, 
and fourth segments sub-e(pnii, coxal plates small. Pifth, sixth, and 
seventh segments decreasing ]u-ogressively in length, coxal plates 
scarcely distinct. Pleon long, having with telsou a length slightly 
greater than four-fifths of that of combined cephalon and ])ei'aeon 
and a greatest depth e(iual to the combined length of third, fourth, 
and fifth jdeoii segments. Two or three stiff setae on ventral mar- 
gins of pleon segments; without setae on jiosterior margins, Sixth 
segment fused with telson, with but very short sutural line which 
bears no setae. Telson large, horse-shoe ^hnped in transverse section, 
without up-turned terminal projection, margin entire, witli four 
stout spinules. 
First antenna stout, longer than peduncle of lower antenna, 
with as many as sixteen articuli, with sensory setae, but no 
olfactory cylinders; peduncle and proximal joints of flagellum with 
serrate margin (due to scales). Second antenna, two proximal joints 
stout, sub-equal, third and fourth slightly longer, sub-equal, fifth 
slender, long as third and fourth combined; flagellum with as many 
as twenty-two joints, somewhat longer than peduncle; margin of 
entire appendage serrated. bight mmidil)le with reduced an.l 
modified secondary dentate cutting edge, witli spine row, molar 
tubercle with setae, palp with broad second joint. Lower lip ex- 
tremely setose, scale-covered. Fii'St maxilla, inner lobe witli seven 
plumose setae and one simple seta. Second inaxilla, short and stout, 
inner plate sub-triangular, outer plate and palp with mesial margin 
reflexed distally. Maxilli])ed with two strong plumose setae on 
distal end of second joint, just intornul to inner plate, the latter 
with row of 4 or d coupling hooks. Guathopod with stout roundei 
basos, large iseliios, propod strongly convex anteriorly, palm set 
with stout spines, occupying entire posterior margin; dactyl ong 
and straight, but sharply i'ont near base, with minute secondary 
unguis. Second, third and fourth iieraeopods with stout roundea 
basos bearing anteriorly at the proximal end a small tuft of stout 
setae; ischios widest mesially owing to flattened expansion, meros 
produced into conspicuous antero-distal lobe, dactyl witli secoiuaix 
unguis. Ill the male, fourth peraeopod sub-chelate, a pair ot stout 
