REPORT ON THE AMPHTPODA. 1129 



an apical group ; the peduncles of the second pair reaching a little beyond those of the 

 first, a little longer than the rami, with strong spines on the lower half of the inner 

 margin ; the outer ramus shorter than the inner, both armed as in the preceding pair, 

 but with rather stronger spines, the rami themselves rather broader, and respectively 

 reaching a little beyond the other two ; the peduncles of the third pair much longer than 

 the rami, reaching beyond the telson, and carrying some short stout marginal and apical 

 spines and some lateral groups of long slender spines ; the rami short and subequal, the 

 outer narrowing distally, with two apical spines, stout and curving upwards, the outer the 

 stronger; there is a short stout spine at the upper part of the upper margin ; the lower 

 margin is convex ; the inner ramus tapers less, has four stout spines and three slender 

 ones fringing the truncate apex, two small spines on the straight upper margin, and some 

 small stout surface spines. 



The Telson is scarcely longer than broad, widest near the base, the sides then con- 

 verging with a straight course to the still wide distal margin, which forms an angle with 

 each of the sides, but is itself convex ; at each angle there is a little tooth on the surface ; 

 there are two slender spines near each margin, two pairs wide apart on the surface some 

 way above the distal margin, one in each pair very long, and some spinules at different 

 points. 



Length. — The length of the specimen, without the antennae, was eleven-twentieths of 

 an inch. 



Locality. — Station 233, Bay of Kobe, Japan, May 17, 1875; depth, 8 fathoms; bottom, 

 mud. Three specimens. 



Remark. — The specific name is derived from the locality. The great similarity which 

 prevails among the more or less definitely ascertained species of this genus, and the 

 scantiness of the details which in many instances have been thought sufficient for their 

 identification, necessarily leave new species on a very insecure footing. To review all 

 the species of Amphithoe will be a task by itself for any one who is willing to under- 

 take it. 



Genus Podocerus, Leach, 1814. 



1814. Podocerus, Leach, Crustaceology, Appendix, Edinburgh Encyclopaedia, vol. vii. p. 433. 



1814. Jassa, Leach, Crustaceology, Appendix, Edinburgh Encyclopedia, vol. vii. p. 433. 



1815. Podocerus, Leach, Trans. Linn. Soc. Lond., vol. xi. pt. ii. p. 361. 



1815. Jassa, Leach, Trans. Linn. Soc. Lond., vol. xi. pt. ii. p. 361. 



1816. Podocerus, Leach, Annulosa, Encyclopaedia Britannica, Supplement, p. 426. 

 1816. Jassa, Leach, Annulosa, Encyclopaedia Britannica, Supplement, p. 426. 

 1816. Pedocere, Latreille, Nouveau Diet, d'hist. Nat., vol. i. p. 469. 



1816. Jassc, Latreille, Nouveau Diet, d'hist. Nat., vol. i. p. 469. 

 1825. Podocerus, Desmarest, Consid. gen. sur la classe des Crustaces, p. 269. 

 1825. Jassa, Desmarest, Consid. gen. sur la classe des Crustaces, p. 269. 

 (zool. CHALL. EXP. — PART LX vi i. — 1888.) Xxx 142 



