r}0 AMPHIPODA NOKMAUA. 



2!). Alloixhestes peiiicillatus. 



Allorchestes peuicilhita, Stiiiipsoii, Ejcpctl. Japan, Proc. Acad. Nat. Set. 

 Auter. 1855. 



•• Ponultimato and first four joints of the inferior antennae furnished 

 witli spreading pencils or plumes of long setae. Antepenultimate 

 pail' of plcopoda with a long curved spine, ending near the bases 

 of the rami, and nearly erjualling them in length. Coxse, legs, 

 &c., of medium si^e, as in A. rubricornis. Colour greenish. 



" Length ^ inch. 



•* Hah. Ousima." — Slim2:)son. 



30. Allorchestes Japonicus. 



Allorchestes Japonica, Stimpson, Exped. Japan, Proc. Acad. Nat. Sci. 

 A»icr. 1855. 



" Smooth jxisteriorly. Interior antenna) stout, one-fourth as long as 

 the body, and t^vice as long as the siiperior one« ; fiagella of both 

 with twelve oblong articulations, with extremely short numerous 

 setae. Cephalon rather small ; eyes large, black, very broad oval, 

 closely approaching each other above. Second paii' of gnathopoda 

 in male having the propodos notched below ; posteiior pair of jjleo- 

 poda very minute ; a prominent contraction of the foiu-th segment 

 of the pleon above. Colour olive ; coxae and legs shaded red. 



'• Length i inch. 



" Hah. Japan . ' ' — Stlmpson. 



31. Allorchestes Babicus. 



Amphitoe Babicus, Costa, Rend, della Scale Accad. deUe Sciense di 

 Napoli, p. 173, 1853. 



"Having the antennje very short; superior rather the shorter; 

 flageUimi a little longer than the peduncle. Second pair of gna- 

 thopoda having the propodos dilated, upper margin strongly 

 arcuate ; palm oblique, and minutely denticulated and ciliated in 

 the male, smaller and compressed inferiorly in the female. Pe- 

 reiopoda minutely spinulose. 



" Length 3|- lines. 



''Hah. Coast of Naples."— Cosfa. 



Costa considers this to be allied to A. Prevostii of Edwards, which 

 differs from A. Nilssonii of Katlike only in having the telson double. 



32. Allorchestes Gazella. 



Amphitoe Gazella, Costa, Rend, della Reale Accad. delle Sc. di Napoli, 

 p. 174. 



" Having the antennce very short ; the superior pair a little longer 



