217 

 2. Amphilochus manudens, Sp. Bate. 



(PI 74). 



Amphilochus manudens, Sp. Bate, Catal. Amph. Brit. Mus. p. 107, PI. XVII, fig. 6 (male). 



Syn : Amphilochus concinnus, Stebbing. 

 Amphilochus Boeckii, Meinert. 



Body rather high and compressed, with the back evenly rounded. 

 Cephalon somewhat larger in male than in female, rostrum evenly curved 

 and very acute, reaching, in female, to a little beyond the middle of the basal 

 joint of the superior antennae, in male, about to the end of same joint, lateral 

 corners rather projecting, and terminating with a sharp deflexed point. Coxal 

 plates comparatively much lower in male than in female; 1st pair in both sexes 

 very small, subquadrangular, anterior corner very little projecting; 2nd pair 

 nearly transversely truncated at the tip, distal edge of this and the succeeding 

 pair coarsely dentated; 4th pair denticulated both on the inferior and posterior 

 edges, and in female considerably more than twice as deep at the corres- 

 ponding segment; 5th pair about half as deep, and rather oblique, posterior 

 lobe truncated at the tip. Metasome in female about half as long as the anterior 

 division of the body, in male considerably more, last pair of epimeral plates 

 somewhat produced, and terminating with a small dentiform projection, poste- 

 rior edge rather curved. Eyes of moderate size, rounded, with well-developed 

 visual elements, pigment dark red. Superior antennae in female about the 

 length of the cephalon and the 1st segment of mesosome combined, joints 

 of the peduncle gradually decreasing in size, 1st joint terminating with 

 an indented margin overlapping the base of the succeeding joint, flagellum 

 scarcely more than half as long as the peduncle, and very slender, 

 composed of about 6 articulations bearing slender sensory setae. Same 

 antennae in male comparatively much larger, with the flagellum more 

 elongated, and composed of a greater number of articulations, each bearing 

 a pair of very long band-like sensory appendages. Inferior antennae in female 

 about the length of the superior, in male much shorter, penultimate joint of 

 the peduncle longer than the last one, flagellum about half the length of 

 the peduncle. Grnathopoda rather powerful, the posterior ones considerably 

 larger than the anterior, propodos in both much longer than the 3 preceding 

 joints combined, considerably expanded distally, and produced in front, just 

 above the insertion of the dactylus, to a conically pointed process more pro- 

 jecting on the posterior pair, palmar edge obliquely curved, and very finely 

 and regularly dentated, dactylus extremely slender, minutely spinulose in 

 its proximal part, carpal process of the posterior pair very narrow, setous 

 on the inferior edge, and reaching to the palm. Basal joint of the 3 posterior 

 pairs of pereiopoda oval inform, and finely serrulated on the posterior edge, 



