156 Proceedings of the Royal Society of Victoria. 



carpus is sub-equal, and the outer margin convex with a few 

 long setfe distally, the inner margin convex, and fringed by long^ 

 fine, curved setse, and also a few spinules distally. The propodos 

 is narrow, slightly shorter than the carpus, and curving inwards > 

 the outer and inner margins bear a few long, stiff setae, and on 

 the upper surface, at two places equi-distant from the proximal 

 and distal margins, there is a tuft of about three spinules. The 

 dactylos is shorter than the propodos, it is somewhat curved, 

 acute, and terminating in two long curved spinules, and a few 

 shoi'ter ones on the inner distal extremity. 



GnatJiopoda (Fig. 9). — The gnathopoda are almost identical in 

 form and in the arrangement of the setae ; the second is, however, 

 somewhat the longest. I shall only describe the first, the figure 

 will sufiiciently delineate the slight difference of the second. 

 The side plate (coxa) is not so deep as broad, the ventral margin 

 is straight, with the angles rounded, and bearing a few scattered 

 setse. The basos is slightly more than twice as long as broad, 

 with the anterior margin straight, and having a bunch of long 

 stiff setfe proximally ; the posterior margin is convex, and bears 

 two or three very long scattered setse, and from its postero-distal 

 angle a tuft of long setaj ; on the inner side, proximally, and 

 toward the anterior margin there is a tuft of long setiij. 



The ischios is short, sub-rectangular, and from its hinder distal 

 angle there is a tuft of long seta3. The meros is of similar length 

 to the ischios, triangular in outline, with a tuft of sette on the 

 hinder distal angle. The carpus is somewhat longer and wider 

 than the meros, and articulates obliquely with it ; it is ov^oidal 

 in outline, and the posterior margin is deeply grooved longitudi- 

 nally, so that the propodos can, in part, be flexed within it. 

 About midway along the anterior margin there is a tuft of two 

 or three setse, and a similar one close to the distal extremity ; 

 close to the hinder margin there is a single series of long pointed 

 spinules, which is interrupted in two places by narrow spaces. 

 The propodos is nearly square in outline, but narrowest proxi- 

 mally. At the antero-distal angle there is a tuft of stout setse, 

 and midway along the hinder margin there is a tuft of long tine 

 sette. The palm is transverse, and the posterior end slightly 

 produced and rounded ; the margins are fringed by short stout 

 spines. On the outer surface of the joint, near the postero-distal 



