1903. ] NEW PARASITIC COPETODS, 105 
lobe-like processes on either side; abdomen one-fourth length of 
whole, biarticulate, tapering; no distinct antennz or thoracic 
limbs; mouth placed on under surface, with minute maxille ; 
external ovaries as elongated filiform sacs containing ova in a 
single series. 
3. Pigmy. 
CHONDROCARPUS RETICULOSUS, sp. n. (Text-fig. 11, A-G.) 
Hab. Zanzibar: from large Pleurobranchid. 
Length 12 mm., breadth 4 mm. 
2. Cephalothorax indistinctly segmented, elongated, tapering, 
dorsally convex, laterally produced into 4 rounded truncated 
processes; the 4th pair being most widely separated and the 
smallest; the whole having a peculiar reticulate appearance from 
the network of ramifying tubules; anterior extremity rounded; 
no visible antennz; mouth as a papilla placed between the Ist 
pair of processes ; upper lip triangular; only one pair of maxille 
and mandibles (?) could be made out, each terminating in minute 
claws. No thoracic limbs; there is a short genital segment, or 
ring, from which spring the long filiform ovaries. Abdomen in- 
distinctly biarticulate, tapering, without caudal plates or sete. 
3. Pigmy. One was seen attached to the last abdominal 
segment but was partially hidden, the bifid articulate caudal 
extremity only being visible. 
Text-fig. 11. 
Chondrocarpus reticulosus 9, gen. & sp.n. A. Dorsal surface. B. Lateral view. 
C. First segment and mouth-organs. D. One of the lobes showing reticu- 
late appearance. E. Second maxilliped. EF. Abdomen showing fixed ¢. 
G. Posterior extremity of g. H. Chondrocarpus sp. 2: dorsal surface 
(specimen incomplete). 
CionprocarPus sp. (Text-fig. 11, H.) 
A specimen of a second species of this genus was taken from a 
