22 
Lernaeopoda scyllicola n. sp. 
bent so that the cephalolhorax, which is proportionately larger than in the 
female, is more or less inclined to the trunk, from which it is separated by a 
well-defined groove, covered by a distinct dorsal carapace and strongly 
flattened dorsi-ventrally. The carapace has a two pointed rostrum. The 
trunk is conical and inflated, and shows traces of segmentation. Three regions 
are readily distinguishable. There are large paired anal laminae, which are 
curved in such a way as to turn forwards dorsally. These are homologous 
with the abdominal appendages of the female and should be called such. A 
pair of peculiar processes, found also in other species of Lernaeopoda (and 
perhaps homologous with an unpaired rounded protuberance between the 
maxillipedes in Brachiella and Clavella) protrude from the body wall between 
the second maxillae and the maxillipedes. These Kane (1892) calls “Inter- 
maxilliped processes,” since he considers the second maxillae to be a first pair 
of maxillipedes, a view held likewise by other authors, but, as it has been 
established by Hansen (1893), Griesbrecht (1893), Claus (1895) and Wilson 
(1910), that the penultimate pair of appendages arises in early development 
in front of the suture which separates the head from the thorax, while the 
ultimate pair arises behind that suture, the former are to be regarded as a 
second pair of maxillae, and Kane’s name is no longer appropriate. 
These mediative or middle¬ 
acting processes, though not 
prehensile, overlap the female, 
and may subserve the function 
of location, fitting, as their 
pointed ends do, over the pro¬ 
tuberance that constitutes the 
female’s shoulder. They shrink 
very considerably on mount¬ 
ing, and appear glandular rather 
than muscular. 
There is no large postero- 
ventral spine on the abdomen, 
but instead a rounded protu¬ 
berance and two pairs of small 
spines (Fig. 10). 
The Appendages, all paired, 
are: 1st antennae (antennules), 
2 nd antennae, mandibles, 1st 
maxillae, 2nd maxillae, and one 
pair of maxillipedes, the same members as are represented in the female. 
The ls£ Antenna or Antennule (Fig. 6) is four-jointed. The basal joint is 
the largest, but has no spiral turn as it has in the female. The other joints 
diminish regularly in size, and the terminal joint is tipped with (two or 
usually) three sensitive setae. 
1 MAXILLA. 
Fig. 6. Lernaeopoda scyllicola. The antennule, the 
antenna, the mandible and the first maxilla. 
F.n. endopodite; Ex . exopodite. 
