406 ON THE STOMATOPODA AXD MACRURA BROUGHT BY 



Antennae. The stalk of the first antenna is shorter than the scale of the second, 

 and consists of a very broad first joint, projecting forwards and outwards in a sharp 

 point at the distal end, and two short, subequal following joints. The inner fiagellum 

 is broken short on either side in the present specimen, and the thicker part of the 

 outer outreaches the scale of the second antenna, though not the fringe of hairs on 

 that structure. The stalk of the second antenna about equals that of the first in length. 



The thiJ-d nuuvilliped reaches the end of the stalk of the second antenna. 



Legs {Pereiopoda). The first pair of legs has the beginning of its wTist-joint 

 (carpopodite) even with the end of the second joint of the antennular stalk, and 

 outreaches the scale of the second antenna by the hand (propodite) and the last 

 two-thirds of the -svi-ist. The fingers about equal the palm in length. The second pair 

 are subequal. Their meropodite about reaches the end of the rostrum, the wrist is 

 short and armed above with a spine, and the fingers are about two-thirds as long 

 as the palm, hairy, and curved towards one another at the tip, thus enclosing a space. 

 The remaining legs are short and stout, and their last joint is curved and arises among 

 a tuft of long hairs. 



Tail-fin. The uropods are longer than the telson, and their exopodite and endo- 

 podite are subequal. 



Length of the single specimen 11 mm. 



From the above characters it would seem to be necessary to place this species 

 in the neighbourhood of P. gracilis (Dana) 1852, from which, however, it is sundered 

 by the presence of a supraorbital spine, to mention only one point of difference. 



Lifu, Loyalty Islands. 



14. Periclimenes tenuipes Borradaile, 1898, Figs. 2a — 2/ 



Periclimenes tenuipes, Borradaile, Ann. Mag. N. H. (7) ii. p. 384 (1898). 



Carapace. The rostrum is long, slender, curved upwards, armed above with ten 

 teeth (of which the first two stand on the carapace) and below with seven, and out- 

 reaches the antennal scale, but not the outer antennular flagellum. Hepatic and 

 antennal spines are present, and the pterygostomial angle is rounded. 



All the appendages are unusually slender and elongated. 



Antennae. The stalk of the first antenna is shorter than the scale of the second. 

 Both its flagella are long, the outer being bifid at the tip. The stalk of the second 

 antenna does not reach the end of the first joint of that of the first. Its scale is 

 longer than the antennular stalk, shorter than the rostrum, and narrow. 



Mouth-limbs. These are shown in Figs. 2c—;/'. The third masilliped nearly reaches 

 the end of the first joint of the antennular stalk. 



Legs. The first pair is wanting in the single specimen. The end of the meropodite 

 of the second is even with the rostrum, and is armed beneath with a spine. The wrist 

 is longer than the meropodite and slightly longer than the palm. It grows broader towards 

 its outer end, where it is armed above with a spine. The movable finger bears three 

 teeth on its inner edge. In the last three legs the propodite is armed with spines. 



Tail-fin. The exopodite of the uropod is longer than the endopodite, and both 

 are considerabh' longer than the telson. The latter structure is armed at its free end 



