1922. J S.Kemp: Notes on Crustacea Decapoda. 201 



times the length of the merus and is equal to, or a little longer 

 than the chela. The palm is about 14 times the length of the 

 fingers, which are unarmed or with very small and inconspicuous 

 teeth near the base. 



The last three pairs of peraeopods are long and very slender 

 (text-fig. 49/). In adult males the mero-carpal articulation of the 

 third pair reaches almost or quite to the end of the basal anten- 

 nular segment. In both sexes the fifth pair reaches beyond the 

 end of the antennal scale by fully the length of the dactylus. 

 The merus of the third pair is from 16 to 18 times as long as broad 

 in adult males, 13 to 14 times in females. The propodites bear 

 a few slender spinules on their posterior edges ; in the male they 

 from 3 to 33 times the4ength of the dactylus, from 27 to 3 times 

 i.i the female. The dactylus is simple and curved, with a few 

 setae in the middle of the anterior margin; it is very slender, from 

 7 to 8 times as long as it; basal breadth. 



The sixth abdominal somite is about t 7 times the length of 

 the fifth. 1 The foremost pair of dorsal spinules of the telson are 

 placed in the anterior third of its length, the second pair midway 

 between the first and the apex. The intermediate apical spines 

 are very long. 



Large specimens are about 165 mm. in length. 



C 374^6/1. Port Blair, Andamans. S. Kemp, Feb., 1915 ; Thirty-five, in- 

 4-8 fms. Feb., March, 1921. chiding Types. 



All the specimens were found in Ross Channel on a bottom 

 composed mainly of small corals and sponge-encrusted stones. 



Periclimcnes (Ancylocaris) proximus, sp. nov. 



The rostrum (text-fig. 51) is slender and reaches almost to or 

 a little beyond the apex of the antennal scale. It is a little up- 



Text-FIG. 51. — Fericlimenes proximus, sp. nov. 

 Anterior part of carapace, rostrum, etc. 



turned in its distal third and bears on the slightly concave upper 

 margin 6 or 7 large teeth, usually 7.' The posterior tooth is placed 

 on the carapace and is rather more distant from the second than 

 the second is from the third ; the remainder are more or less evenly 



! It is too short in plate vii, fig. 9. 



1 Ot twenty-one specimens tour have 6 dorsal teeth and seventeen have 7, 



