PYCNOGONIDA. 
27 
each segment of the trunk and on the lateral processes, in addition to the distal 
fringe. There are none ventrally. 
The Ocular tubercle rises from the neck immediately in front of the first pair of 
lateral processes; it is moderately tall, cylindrical, and bears at its rounded summit 
four well-developed eyes. 
The Abdomen is long and slightly ovate; it projects beyond the first coxae of the 
posterior pair of legs in their normal position, and bears a few small setae. 
The length of the body is 6'5mm. and its width is scarcely 4mm. 
The Proboscis is stout, cylindrical, and inclined downwards ; it is quite devoid of 
setae of any kind, and 2 - 5mm. long, measured dorsally. 
The Chelifori are strongly developed ; the scape is stout and single-jointed ; it 
bears on its inner margin a band of long setae and a distal fringe of similar setae, but 
these are much reduced in size on the outer side. The chela is strong, the palm is 
setose all over and well on to the base of the immovable finger. These setae are of 
normal size. The fingers are inclined at a considerable angle with the palm, and are 
curved at the tips, especially the immovable one. Both are provided with numerous 
slender teeth, not very closely set, and variable in size; these teeth may be said to 
be large and small, but they are not disposed with any regularity. 
The Palp has the normal five joints and arises at the side of the proboscis 
(fig. la). The first joint is very short and stout; the second is the longest; this is 
stout, dilated, curved at its distal extremity, sparsely covered with long setae and much 
more abundantly with fine ones. The third joint is nearly as long, as 8 to 10, 
and more abundantly supplied with both kinds of setae, which occur throughout 
the appendage. The fourth joint is short and richly setose; the fifth is about half 
as long again as the fourth, and also richly setose. 
The Ovigers arise ventro-laterally, immediately in front of the first pair of lateral 
processes (fig. lb). Of the orthodox ten joints the first three are quite small, the 
last being slightly curved, longer than either of the other two, and with an oblique 
termination. The fourth joint is long, the fifth is longer still, the sixth about half 
the length of the preceding. All these joints are covered with very fine setae ; on 
the first four there is an occasional longer and coarser seta, and on the fifth joint these 
are more conspicuous on the outer margin and distal extremity ; on the sixth joint 
they cover it on the outer side and form a well-developed distal fringe. Of the four 
terminal joints the first three progressively shorten without any conspicuous difference 
in size ; the terminal one is a little longer than the preceding, and bears a slender 
curved and dentate claw half as long again ; there are eleven slender teeth on the claw. 
The denticulate spines are not numerous on these joints, 5: 4: 3: 4, and are of the normal 
type, the shaft bearing five to seven lateral teeth. The spines on the proximal joint 
are the largest. (Plate X., fig. 11.) 
The Legs are short and robust, only attaining a length of 17mm. Of the three 
coxae the second is a little the largest; they all bear a few long setae dorso-laterally, the 
