PYCNOGONIDA. 27 



each segment of the trimk and on the lateral processes, in addition to the distal 

 fringe. There are none veiitrullv. 



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 G'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 setse 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. Ib). 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 

 an- the largest. (Plate X., fig. 11.) 



The Legs are short and robust, only attaining a length of 17mm. Of the three 

 <'nxse the second is a little the largest ; they all bear a few long setae dorso-laterally, the 



