282 J@RA WAKISHIANA. 
IDOTEA MEDIA.—Esquimalt Harbour. 
IDOTEA STRICTA (Dana).—Esquimalt Harbour. 
J@RA WAKISHIANA, N. 8.—Posteriorem marginem pleonis 
habens bis excavatum cuspide intermedia supra cuspidatos mar- 
gines non producta ; antennze inferiores non possunt extendere 
supra quintum segmentum ; pereionis posteriora pleopoda non 
longiora quam posteriori margo latus est. 
Anterior margin of the cephalon nearly straight ; 
pereion having the sides subparallel, the greatest 
width being at the sixth segment; pleon having 
a double excavation on the posterior margin, the 
central point not extending beyond the extremity 
of the sides. Superior antenne reaching to the 
extremity of the fourth segment of the inferior ; 
inferior antenne nearly two-thirds of the length 
of the animal. Posterior pair of pleopodaas long 
as the posterior margin of the pleon, terminating 
in two styliform rami, each of which is tipped 
with a few short hairs. 
This species was taken from a sponge dredged 
in about eight fathoms of water in Esquimalt 
Harbour. 
The specific name is derived from the circum- 
stance of the animal having been found on the 
territory of the tribe of Wakish Indians. 
TANAIS LORICATUS, N. S.—Exemplum imperfectum ; inferi- 
ores antennas semi-breviores quam superiores habens; gnathopo- 
dum primi paris propoda ovata dactylo breve et tumido; pereio- 
podum primis tribus articulis brevibus et latis sunt, loricis ad 
pereionem adherentibus. 
