CEUSTACEA OF NEW ZEALAND. 215 



rectangular, aud is surrounded by the propodos, except on the posterior side, where it is 

 produced at the extremity into a small rounded lobe bearing a few long setse and 

 covered with a thick fur of very short setse. The propodos is very large, about as long 

 as the three preceding joints together; it is subtriangular, widest towards the base, where 

 it is more than half as broad as long ; the anterior margin is very convex and bears 

 no setae except a small one at the base of the dactylos ; the posterior margin is straight 

 and is produced along the end of the carpus into a small rounded lobe ; all the rest forms 

 a rather broad palm, fringed throughout its whole length on the outside with a row of 

 serrated setae of fair length, one or two of these being considerably longer than the others, 

 and two or three long ones being situated at the extremity. The dactylos is as long as the 

 propodos, is considerably curved, and tapers gradually to the acute extremity ; the 

 inner margin bears about 15 minute spinules at regular distances ; the tip is brown in 

 colour, but is otherwise not clearly marked off into a distinct unguis. 



When the limb is seen from the inner side (fig. III. p) only a triangular portion of the 

 carpus is seen, the rest being overlapped by the propodos. The inner margin of the palm 

 appears slightly convex and is fringed with a thick row of setae, which appear simple 

 and are much more numerous than those in the row on the outer margin. At the base 

 this row leaves the margin of the propodos, and curves along the side, thus marking the 

 place where the tip of the dactylos overlaps the propodos. 



The second pair of legs (figs. 17, 18) is slender and subchelate. The bases is longer 

 than the ischium, narrow at the base, widening distally, greatest breadth rather more than 

 one-fifth the length ; two " auditory setse " near the base as in the first pair of legs, both 

 margins with a few small spinules. The ischium is similar in shape to the bases, widest 

 at the middle, where the breadtli is about one-fourth the length, narrowing toward both 

 ends, a few spinviles on each margin. The meros is triangular, very narrow at the base ; 

 posterior margin straight, with two or three long setae at the extremity ; antero-distal angle / 

 produced and tipped with two setae. The carpus is small, with three setae at the extremity 

 of the posterior margin ; the junction with the propodos oblique. The propodos is naiTow 

 ovate, as long as the ischium, length about two and a half times the greatest breadth ; 

 anterior margin convex, with a few small setae, and at the base of the dactylos a small 

 group of two longer ones and an " auditory seta " ; the palm occupying about two-thii"ds 

 the posterior margin, not clearly defined, slightly convex, armed with about eight stout 

 setae, each bearing a subapical hair and being serrate on the opposite side ; besides these 

 there are also a few simple setae. The dactylos is slightly curved, fitting closely on to 

 the palm ; inner margin Avith a few minute spinules, and towards the end one or two small 

 setae marking off the terminal unguis. 



The third pair of legs is similar to the second in size and form. 



The fourth pair of legs (fig. 19) is about as long as the third, but they are simple and 

 not subchelate. The bases and ischium are similar to those of the second and third 

 pairs, but the bases is a little more widened in the centre and bears three " auditoiy 

 setae." The meros is rather more than half as long as the ischium, triangular, narrow at 

 the base; anterior margin straight, with a seta about the middle and two longer ones at 

 the extremity ; posterior margin slightly convex, somewhat produced distally, and bearing 



