6 Mr. C. Chilton on a new Species of 
The lower lip (Plate I. fig. 6) consists of two portions 
almost completely separated; I have never been able to 
dissect out the two parts together. Each is subtriangular in 
outline, the inner margin nearly straight, the outer strongly 
curved and somewhat sinuous, the distal extremity being 
acute. The distal half of the inner margin is fringed with 
short sete which gradually increase in length distally, the 
longest being placed at the extremity; the outer margin is 
free from sete. 
The first maxilla is of the usual shape and consists of two 
lobes, the outer longer than the inner, slender, narrowing 
towards the extremity, and bearing at the end about ten broad 
comb-like sete ; the inner lobe is only about half as long as 
the outer, broadest at the base, bearing at its extremity four 
or five long curved sete, plumose towards the end, and also 
two or three finer simple sete. 
The second mawilla is also of the usual shape, consisting 
of a broad basal portion bearing three subequal plates, the 
inner forming a prolongation of the base, the outer two being 
articulated to it. The two outer plates are similar and sub- 
equal, oblong, each bearing at the end four long setex, the 
three outer very finely pectinated on the inner margin, the 
inner one shorter than the others and coarsely pectinated, the 
pectinations being at right angles to the seta. The inner 
plate bears at its extremity eight to ten sete of various sizes, 
some stout and pectinated, others fine; there are also some 
fine slender sete or hairs on the inner margin. 
The maaillipedes (Plate I. fig. 7) are well developed and 
broad and appear to form a sort of operculum to protect the 
mouth-parts. The basal joint (coxos) is short, transverse, 
and bears the elliptical epipodite and the large basos. The 
margin of the epipodite is quite free from sete and quite 
entire except for a short distance towards the end on the outer 
side, where it is finely crenate. ‘The basos is very large and 
forms much the largest part of the whole appendage; its 
inner margin is straight and it is produced distally into a flat 
plate nearly as large as the basos proper; the extremity of 
this plate bears numerous short pectinated sete. On the inner 
margin are four stout sete, slightly hooked or enlarged at 
the end so as to fit into those on the other side and hold the 
two halves of the maxillipedes together. The “ palp ”’ (endo- 
podite) has the ischios short transverse, the meros is much 
larger and expands distally, and has both margins, but espe- 
cially the inner one, fringed with long sete; the carpus is 
much broader than long, the inner margin rounded and 
