ANCEUS (PRANIZA) MACULATA, 199 
ANCEUS (PRANIZA) MACULATA. 
Praniza maculata. Wustwoop, in Ann. Sci. Nat. xxvii. p. 326, t. 6, f. 4-25. 
Guérw Méy., Icon. R. An. Crust. pl. 27, f. 10, a, b. 
Minne Epwarps, Crust. iii. p. 195. Wuurs, B. M. 
Cat. Brit. Crust. p. 74. 
Unpber 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- 
