42 T. Y. nODGSOX. 



The first antenna (fior. la) conforms to the usual type, the first joint is 1>road, 

 having a more ilcfinite wing-like expansion on its inner side than is usual, and on its 

 outer border a stronglv developed spine. The second joint is short, expanding 

 distally. The third is inu(;h shorter still, these two together scarcely equal the first 

 in length. The fourth joint is the longest and provided with a dozen tufts of 

 specialised setae. Every joint l>ears small arltorescent <hromat<iplii)rcs. 



The second antenna is nearly half as long again as the body, and is fully clothed 

 with long setae. Of the five joints of the peduncle, the first is very short, the second 

 is longer, and at its ventral extremity bcar.< a very stout spine. The proportions of 

 the four joints of the peduncle and the flagellum are approximately 3. 5"5. 11. 12. 13'5. 

 The three terminal joints of the peduncle are plentifully provided with long setae, 

 and each joint of the flagellum bears a distal whorl of them as well as a few 

 about the middle. 



The first maxilla (fig. lb) is stout, the smaller and inner lobe has a curved outline, 

 the middle of its inner margin bears a group of long setje, smaller setae are plentiful 

 distally, while the extremity is armed with three stout setose spines. The outer lobe, 

 which is more than double the size, bears numerous chromatophores, compact at the 

 base but becoming arborescent distally. The middle of both inner and outer margins 

 is occupied by a group of short setae, and the; distal extremity is armed with eight or 

 nine strong but simple spines. 



The second maxilla (fig. Ic) is very broad, decorated as before with (thromato- 

 phores, compact at the base and arborescent distally. The inner lobe is sliort and 

 broad, its inner margin provided with fine sotte, distally it bears numerous spinous 

 setae, each provided with lateral setae, but these are too short and stift' to justify 

 the use of the word plumose. Of the two outer lobes, the outermost has been broken 

 off in the specimen examined, the other is a1)out one-third the diameter of the main 

 lobe, and like it, it is providoil with stout setae furnished with small and stiff 

 subsidiary ones. 



The maxilliped (fig. Id). The masticatory lobe is two-jointed, and in its entirety 

 has something of an hour-glass shape, being constricted at the junction of the two 

 joints ; the distal margin and inner angle of the second joint is fringed with stout 

 plumo.se setae. The palp is five-jointed, stout throughout, none of the joints greatly 

 exceeding the others in diameter ; the first three joints progressively increa.se in length, 

 the fourth is as long as the third but more slender, the .terminal one is a stout knob. 

 All are liberally provided with setae on the inner margin, which increase in length 

 to the fourth joint, and are more generally scattered over the first and second, the 

 third and fourth having a distal fringe dorsally. The epignath is conical though not 

 symmetrical, and the greater part of its margin is fringed with minute setae. 

 The entire appendage is covered with black chromatophores, only a few of which are 

 aborescent ; the majority are sharply-defined black .spots, but many are irregular in shape. 



Tlie first appcnduge of the mcsusonic (fig. le) is prehensile. The basis is a long 



