Notes on the Uropodiiue. By A. B. Michael. 
301 
Glyphopsis Bostocki sp. n., plate YI. figs. 1-4. 
$ and 9 • 
Length about 1*5 mm. 
Greatest breadth about 1 • 0 „ 
Length of legs, 1st and 4th pairs, about .. 0*67 ,, 
„ 2nd pair, about .. .. 0*58 „ 
3rd „ „ .. .. 0-62 „ 
This is the largest and one of the handsomest species of Uropodinoe 
which I am acquainted with. 
Colour darkish, chitinous, red-brown. 
Texture very rough and quita dull. 
Shape very irregularly pyriform. 
Dorsal surface irregular and complicated in formation and mark- 
ings ; it is difficult to describe and will be best understood from the 
drawing (fig. 1) ; but I will attempt its description. The rostrum is 
really small and triangular, but is bordered laterally by very broad, 
chitinous lamellae joined to the rostrum by their inner edges and sloping 
upward gradually to the outer edges, which are thus considerably 
raised. These two lamellae meet in the median line at the point of 
the rostrum, and are fused at the lower, but free and rounded at the 
upper part. These lamellae serve as protections for the first pair of 
legs, and are continuous with the first part of the edge of the dorsal 
surface, which is extremely rough and irregular. The edge, or 
lamella, bends suddenly outward, forming a great round projection 
above the ridge which divides the hollow for the reception of the 
second leg from that for the first leg. At this point the edge (or 
lamella) dips downward and runs along the lateral surface of the body 
on a lower level than the actual dorsum ; it first forms an extremely 
large irregular projection above the ridge which separates the hollows 
for the second and third legs ; this is much the largest projection and 
curls downward. The lamellar edge then becomes smoother and 
narrower, but expands again into a smaller and less well-marked rough 
projection above the ridge between the hollows for the third and fourth 
legs. After the fourth leg the edge loses its lamellar character and 
becomes a series of great, blunt, tooth-like projections or crenations, 
which border the whole posterior part of the body. Just at the rear 
of the projection between the first and second legs an inner ridge 
commences and runs all round the part of the body posterior to this 
point. This inner ridge is rough, undulated, aud irregular ; it bears 
a small, crest-like, lamellar expansion along its anterior part, which 
forms a conspicuous projection between and above the second and third 
projections of the lower lamella, and a number of somewhat similar, 
but smaller, projections along its course. Bordering the inner edge 
of this second, or inner ridge is a narrow but deepish trench, the 
chitin of which is smooth. On the inner border of this trench is a 
third ridge of rough chitin, much less irregular or undulated in form 
