PYCNOGONIDA. 31 



The Proboscis is of moderate length, 2min., measured dorsally, cylindrical but 

 slightly swollen in the middle ; it is directed downwards, and not setose at all. 



The Chelifori are well developed ; the scape is single-jointed, stout, and scarcely as 

 long as the proboscis. A row of stout spines runs along its inner border, and a few 

 spinous setae constitute a distal fringe, and there are two or three scattered on the 

 shaft. The chela is strong, the palm taking up half its length, and the fingers are 

 set at a considerable angle. The palm is covered, but not thickly, with setae. The 

 fingers are slender, curved towards the tip, and provided with slender teeth of fairly 

 uniform length, but not very closely set. 



The Palp rises laterally, quite close to the proboscis, and consists of the normal 

 five joints (fig. 3a). The first is short and stout, the second is the longest of the 

 appendage and provided with a few long setse ; its proportion to the remainder is 

 9 : 5*5 : 1"5 : 1'6 ; the third is scantily supplied with setae, the two terminal joints are 

 rather more abundantly supplied ; the last joint is ovoid instead of cylindrical. 



The Ovigers arise ventro-laterally immediately in front of the first pair of lateral 

 processes. They comprise ten joints of normal character (fig. 3b). The first three 

 joints are quite short, stout, and progressively lengthening ; the proportions of the three 

 following are 7:9:5. Setae become prominent, but not numerous, on the fifth and sixth 

 joints ; on the preceding joints they are almost non-existent. The four terminal joints 

 are small, the proportions being about 4*5 : 3 : 2*5 : 275, the last one possessing a 

 curved terminal claw, quite as long as the joint, with half-a-dozen rather widely 

 separated teeth. All the terminal joints carry a few setae distally and dorsally. The 

 denticulate spines are not numerous, 5:4:3:4 respectively ; they consist of the normal 

 flattened blade with two prominent teeth on each side, and two others of which traces 

 remain. They are rather worn. (Plate X., fig 13.) 



The Legs are rather short, about 16mm., very stout, but the tarsus and propodus 

 are very much reduced in diameter. Of the three coxae the second is much the longest, 

 but not so long as the other two together. The first is provided dorso-laterally with 

 two stout spines, and there is another rather smaller one laterally, on the posterior 

 side. A row of spinous setae occur laterally on the other two coxae. The distal 

 fringes of these two joints are ventral and inconspicuous ; that of the third coxa 

 is the best developed, and on this joint there are several small setae ventrally in 

 addition. The three following joints are subequal in size, the tarsus and propodus 

 together are three-quarters the length of the preceding joint, and are themselves sub- 

 equal. In these particulars this species is not in agreement with the preceding. On 

 the two tibiae there are two dorsal rows of stout spinous setae, a lateral row on either 

 side, and a strongly developed ventral row. On the second tibia the distal fringe 

 is strongly developed ventrally, and spinous. The setae on the femur are smaller, 

 and only the two dorsal rows are distinct ; the other three rows are present, but 

 very feebly developed ; there is a prominent distal fringe dorsally. The tarsus and 

 propodus are similarly provided, but the setae are much smaller. The terminal claw 



VOL. III. Q 



