56 STALK- AND SESSILE-EYED CRUSTACEA 
the orbits. Inner antenne elongate. External maxillipeds with the 
palpus broad, external margin curved, narrowed anteriorly, second 
joint of the external maxillipeds with the sides parallel, third joint 
triangular, Abdomen in both sexes with the third to the sixth 
segment coalescent. 
62. Phlyxia levis. 
Phlyxia levis, Bell, Trans. Linn. Soc. xxi, p. 805, pl. xxxiv, fig. 3, 
(1855) ; Cat. Leucosiade in Brit. Mus. p. 18, (1855). 
Carapace rhomboidal, smooth; rostrum obtuse, slightly emarginate. 
Margin of the branchial region with a single minute tooth, posterior 
margin with three obtuse teeth. Anterior legs not twice as long as the 
carapace. Arm three-sided, triangular, granulated, hand half the 
length of the arm, smooth, slightly carinated on the outer side, fingers 
hardly deflexed. Length and breadth nearly {3, in. (B.). 
New Zealand (Coll. Mus. Paris; Brit.). 
Tribe II. ANOMOURA. 
Anomoures, M. Edw. Hist. Nat. Crust. 1, p. 247, (1834). 
Anomoura, Dana, U.S. Explor. Exped. xii, Crust. parti, p. 398, 
(1852), 
Abdomen sometimes extended backward, sometimes inflexed beneath 
the body, and nearly always bearing more or less well developed 
appendages upon its antepenultimate segment. Sternum usually 
linear between the last three pairs of legs. 
Scarcely any single character can be mentioned absolutely charac- 
teristic of the whole group of Anomoura. Some species show their 
degradation from the Brachyural type in one direction, some in another. 
The abdomen is, however, almost always more developed than in the 
Brachyura, and is furnished with appendages, and shows a greater or 
less approximation to the extended abdomen of the Macroura. The 
species are generally recognizable as intermediate in structure between 
the true Brachyura and Macroura. 
Section I. ANOMOURA SUPERIORA. 
Anomoura superiora, Dana, U.S. Explor. Exped. xiii, Crust part-i, 
p. 400, (1852). 
