ANCEUS (praniza) maculata. 199 



■ ANCEUS (PRANIZA) MACULATA. 



Praniza maculata. Westwood, in Ann. Sci. Nat. xxvii. p. 326, t. 6, f. 4-25. 

 QuEKiN Men., Icon. R. An. Crust, pi. 27, f. 10, a, b. 

 Milne Edwards, Crust, iii. p. 195. White, B. M. 

 Cat. Brit. Crust, p. 74. 



Under the name of P. maculata, Professor Westwood 

 described, in his memoir on Praniza above referred to, 

 certain immature individuals belonging to the group, 

 which he had received in spirits from the Rev. F. W. 

 Hope, in company with various small parasitic Crustacea, 

 collected on the coast of Shetland. These three spe- 

 cimens varied from one and a quarter to two lines in 

 length, and, with the exception of the large consolidated 

 hind pereionic mass, which was of a dark reddish -brown, 

 were of a brownish-white colour, with a row of brown 

 spots on each side of the five segments of the pleon, and 

 with various small dots of the same colour scattered 

 over the terminal segment. The largest and smallest 

 individual agreed together in having the hind portion 

 of the pereion of a texture identical with the rest of 

 the body, and distinctly divided into three segments, 

 of which the first was larger than the two others, whereas 

 the third individual, intermediate in its size, had this 

 portion of the body consolidated into a solid mass, 

 resembling hardened wax covered with a fine mem- 

 brane. The former individuals were considered to be 

 males, and the latter a female ; a suggestion which 

 seems confirmed by what has been advanced in a pre- 



