232 Proceedings of tlie Royal Society of Victoria. 



The mandible of tlie right-hand side has six teeth in the outer 

 plate ; the inner cutting process is cleft into two ridges, the 

 outer ridge is minutely serrate and the end acuminate, the inner 

 ridge bears two or tliree small denticles, and ends in two long 

 closely set teeth. The spine row is formed of nine pectinated 

 spines. 



The molar tubercle of each is broad at the end, and there is a 

 row of long setae on one side. 



Tlie palp is very broad, the first joint short, the second with 

 the inner margin expanded and thickly clothed with long setae, 

 the outer margin somewhat concave, and except at its distal 

 angle is unclothed. The third joint is rather broad, very slightly 

 longer than the second, the inner margin almost straight and 

 densely fringed with short' setae, with also a submarginal row 

 of long delicately feathered setae ; the outer margin is deeply 

 convex, and bears two bunches of long feathered setae. 



Posterior Lip. — The outer lobes are broadly rounded, and 

 thickly ciliated, the inner lobes prominent and apically narrow. 



First Maxillae. — ^The inner lobe is narrow, twice as long as 

 broad, the sides 'converge to a rounded apex which is furnished 

 with three long stout plumose setae. The outer lobe is broad, 

 and apically bear about nine strongly pectinated spines. The 

 palp has the second joint twice as long as the tirsc, the end 

 rounded and furnished with many feebly pectinated spinules and 

 simple setae ; that of the right-hand side is similar to the left. 



Second Maxillae. — The inner lobe is almost as broad as the 

 outer, and extends nearly to its extremity, its summit is obliquely 

 rounded, and bears many fine delicately pectinated spinules ; 

 these descend for a short distance along the inner margin, and 

 merge into a marginal row of plumose setae that extend to near 

 the base of the lobe. The outer lobe is i-ounded distally and 

 bears many pectinated spinules. 



Maxillipedes. — The inner plate reaches slightly beyond the 

 palps first joint, its truncated end bears three very large trian- 

 gular teeth, also numerous plumose setae, and two slightly 

 pectinated long blunt spines, and along the inner margin distally 

 there is a short row of plumose setae. The outer plate is narrow- 

 ovoidal, and extends to slightly beyond half the length of the 

 second joint of the palp ; the inner margin is minutely serrate, 



