374 PERCY SLADEN TRUST EXPEDITION 



23. Periclimenes (Falciger) hrocketti Borradaile, 1915 (Plate 55, fig. 15). 

 Ann. Mag. Nat. Hist. (8), xv. p. 212. 



Definition : Body moderately compressed ; rostrum not quite reaching end of 

 antennal scale, but outreaching antennular stalk, shallow, directed slightly downwards, 

 straight, save for a very slight upcurving of the tip, bearing above six teeth, of which 

 one stands immediately behind the orbit, and below one tooth ; antennal and hepatic 

 spines pi-esent ; first joint of antennular stalk moderately expanded, with stylocerite 

 half as long as the joint, and two small distal spines, second joint wide, shorter than third 

 joint ; stalk of antenna a good deal shorter than first joint of antennular stalk, scale of 

 antenna rather broad, with pointed end and small distal spine which does not nearly 

 reach the end ; third maxilliped not reaching end of antennal stalk, its long joint rather 

 broad ; first leg slightly outreaching antennal scale, with wrist a little shorter than arm, 

 hand shorter than wrist, fingers longer than palm, hairy; second leg outreaching antennal 

 scale by its hand and greater part of wrist, Avhich is comparatively short, hand slender, 

 fingers simple, about as long as palm ; last three legs with propodites unarmed and 

 dactylopodites small, slender, and set in a tuft of hairs ; telson narrow, a good deal 

 shorter than uropods. 



Length of the longest of the three specimens, 16 mm. 



Mal^ Atoll, Maldive Is., on brown crinoid. 



I have called this species after Mr W. Brockett, Head Attendant in the Cambridge 

 University Laboratory of Zoology, to whose skilled and ready assistance all Cambridge 

 zoologists are greatly indebted. 



24. Periclimenes [Falciger) pottsi Borradaile, 1915. 



Ann. Mag. Nat. Hist. (8) xv. p. 213. Potts, Pap. Dep. Mar. Biol. Carnegie Inst. 

 Washington, viii. p. 82 (1918). 



Definition : Body moderately stout, somewhat compressed ; rostrum reaching end 

 of antennal scale, outreaching antennular stalk, its upper edge curving very slightly 

 downward from the base and more strongly upward near the tip, its formula J, two 

 teeth behind the orbit ; hepatic and antennal spines present ; basal joint of antennule 

 elongate, with small distal spine, second and third joints stout, subequal, flagella about 

 twice length of stalk, outer not deeply cleft ; antennal scale shorter than carapace, rather 

 narrow, outcurved, its distal spine projecting beyond its end ; antennal stalk falling 

 considei-ahly short of end of first joint of antennular ; third maxilliped outreaching by 

 its last joint antennal stalk, slender, nearly straight, its last two joints together longer 

 than preceding joint ; first leg outreaching antennal scale by its hand, its arm and 

 wrist subequal, hand nearly as long, and fingers slightly longer than palm ; second leg 

 outreaching antennal scale by hand and part of wrist, with arm a little longer than wrist, 

 palm than arm, fingers and wrist subequal, a spine at end of arm and a small spine 

 above at end of wrist ; last three legs slender, sparsely hairy, with small spinules under 

 propodites, and rather slender, slightly curved dactylopodites. 



