510 APPENDIX. 
of the peduncle of the superior antenne, when the latter is 
deflected in the same line. The segments of the pereion 
and the anterior three of the pleon are subequal; the three 
posterior segments of the pleon very short; and the fourth 
and fifth dorsally produced into a tooth. 
The superior antenns have the first joint of the peduncle 
thick, and as long as the cephalon, with the upper surface 
anteriorly produced into a scale-like process, quite as far as, 
if not beyond, the distal extremity of the third joint of the 
peduncle; second joint with the upper surface anteriorly 
produced like the first; third not so produced; flagellum 
short, consisting of four or five articuli. The inferior antennz 
are short, having the peduncle longer than the flagellum ; 
flagellum consisting of four articuli; and the whole organ 
not reaching beyond the extremity of the first joint of the 
peduncle of the upper antenne. The first pair of gnatho- 
poda have the propodos but little longer and not broader than 
the carpus; anterior and posterior margins subparallel; palm 
slightly oblique, and defined by an acute tooth; dactylos short 
and curved. The second pair of gnathopoda have the propodos 
shorter than the carpus, anterior and posterior margins curved, 
sub-parallel; digital process short and conical; dactylos not 
longer than the digital process of the propodos, conical, curved. 
The pereiopoda are short, robust, subequal last pair slightly 
the longest; third pair having the coxa quadrate, half as deep 
as that of the preceding ; basos circular, as deep as the coxa; 
meros posteriorly produced to a thin angular plate. The 
fourth and fifth pairs differ from the third in being less robust 
and slightly longer. The rami of the three posterior pairs of 
pleopoda short. The telson has not been made out. 
Taken at Banff by Mr. Edward, associated with Anonya 
longicornis, with which it is very closely allied, being perhaps 
a young female. 
ANONYX LONGIUORNIS (vol. i, p. 91).—The absence of asecon- 
dary appendage to the upper antennse must separate it from 
the genus Anonya, to which it is assigned in the body of the 
work. We therefore arrange it in the present genus in 
consequence of its near affinity with the last species. 
