AMPHIPODA — STEBBING. 597 



Specimens from Station 57, off Wata Mooli, agree with 

 Walker's figures of the female which in 1904 he names Melita 

 anisochir, Kroyer. 



Genus PARACERADOCUS, Stebhing. 



Paraceradocus, Stebbing, Trans. Linn. Soc, (2), vii., 1899, p. 426. 

 Paraceradocus, Stebbing, Das Tierreich, xxi., 1906, 429. 

 Paraceradocus, Chevreux, Exp. Antarct. Frangaise, Amphip., 

 1906, p. 93. 



The new species to be added to this genus labours under the 

 disadvantage of being known only in the female sex, and, of the 

 two specimens available, only one had a first antenna in a 

 moderately satisfactory condition, neither had more than three 

 short basal joints of the second antennae. From the only other 

 species at present included in the genus, P. miersii (Pfeffer), which 

 attains a length of nearly two inches, it is at once distinguished 

 by its diminutive size as well as the serrations of the pleon and 

 other characters. 



PARACERADOCUS MICRAMPHOPUS, sp.nov. 

 (Plate li.) 

 Station 57. 



Head without conspicuous rostrum. The pleon segments from 

 first to sixth all dorsaily denticulate, much as in Ceradocus rubro- 

 maculatus (Stimpson), the third segment having the denticulation 

 continued, after an interruption, down to the strongly produced, 

 slightly up-curved postero-lateral angle. 



Eyes of moderate size, near the obtuse lateral lobes of the head. 

 First antennae with rather stout first joint, followed by a slender, 

 rather longer second joint, the third not long, the flagella slender, 

 the primary incomplete, with twelve joints, the secondary four or 

 five-jointed. 



Upper and lower lips figured from partially unsuccessful dis- 

 sections. Mandibles, with secondary plate as usual stronger 

 on one of the pair than on the other, spine-row of six or seven 

 spines, that nearest the secondary plate more conspicuously den- 

 ticulate than the rest, molar normal, third joint of palp a little 

 longer than the second. First maxillse with nine or ten set» on 

 the inner plate, eleven spines on the outer, second joint of palp 

 elongate. Second maxillse with fringe of setae along most of its 

 inner margin. Maxillipeds with three little teeth on apical 

 border of inner plate, outer fringed with nine or ten spine teeth, 



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