REPORT ON THE CRUSTACEA MACRURA. 



131 



it aids the long and lanceolate telson in forming a well-developed rhipidura. The basal 

 joint is short ; while the rami are long, broad, fohaceous, and lanceolate, the margins 

 being fringed with a row of closely-planted, evenly-set hairs. 



Observations. — The specimen is the only one of this species taken. According to Dr 

 v. "Willemoes-Suhm, when obtained it " was red, which is I bebeve the prevading colour 

 of all deep-sea Crustacea." This colour, however, rapidly disappeared when the specimen 

 had been for a certain time in spirit. 



Fig. 31.— Polycheles crucifera. From a drawing by Dr. v. Willeruoes-Sunm. 



Polycheles baccata, Spence Bate (PI. XIV. fig. 1). 



Polycheles baccatus, Sp. B., Ann. and Mag. Nat. Hist., ser. 5, vol. ii. p. 278, 1878. 

 Carapace scarcely broader than the pleon at its anterior extremity, lateral margins 

 subparallel, anterior division armed with twelve teeth, the median, which is but irnper- 



