OF NEW ZEALAND. Vi ly 
The S. Orbignyana of M. Edwards is the true paradoa of Fabricius, 
as I am convinced by a comparison of the type specimen of Fabricius, 
in the Banksian Collection, with the figure of Audouin and Milne 
Edwards. The emargination of the posterior extremity of the last 
abdominal segment is rather apparent than real; this part is, in fact, 
arched in a vertical sense. This peculiarity is not observable in younger 
specimens, and the posterior margin then appears entire, of the form 
figured as S, paradoxa by Audouin and Mie Edwards, 
125. Serolis latifrons. PI. III, fig. 7. 
Serolis latifrons, List Crust. Brit. Mus. p. 186, (1847), sine descr. ; 
Miers, Ann. Mag. Nat. Hist. p. 74, (1875). 
Convex, with a series of impressed lines and punctulations near the 
posterior margin of each segment. Segments of the body with the 
posterior margin sinuated, but not greatly produced backward, (as in 
some species of the genus). Last segment of the tail large, sub- 
triangular, with a semicircular notch at its extremity, a high longi- 
tudinal central ridge extending from the base of the segment to the 
terminal notch, and with a less elevated ridge on either side, rising near 
and continued for some distance parallel to the base of the segment, 
then curving backward, and terminating before reaching the lateral 
margin. Caudal lamelle narrow, acuminate, the outer one very small, 
not half the length of the inner. Colour brown, with irregular paler 
patches. Length | in. 
Auckland Islands, Rendezvous Cove (Coll. Brit. Mus. ), 
Tribe III. AMPHIPODA. 
Amphipoda and Lemodipoda, Latr, Fam. Nat. p. 285, 287, (1825) ; 
M. Edw. Hist. Nat. Crust. i, p. 234, (1834). 
Amphipoda, Dana, U.S. Explor. Exped. xii, Crust. part i, p. 11, 
(1852); Spence Bate, Cat. Amphip. Crust. Brit. Mus. p. 1, (1862). 
Body rounded above, and laterally compressed. The seven pair of 
thoracic legs consisting of an anterior series of four pairs, (of which the 
first two have a more or less perfectly chelate hand), and a posterior 
series of three pairs. Branchial vesicles pendent from the thoracic 
limbs. Segments of the abdomen distinct, the abdomen usually 
elongated, but sometimes rudimentary. Abdominal appendages of the 
first three segments elongate, ciliated, and flexible ; of the three 
succeeding pairs styliform, terminal segment small, or rudimentary. 
