12 



W. LlLLJEBORG, 



process. The 4 th truncal segment's epimera, which are the largest, are 

 almost rhomboidal with the corners rounded off, and with a wide hollow 

 at the upper and hack corner. The 5 th pair of epimera are almost rect- 

 angular with the corners rounded off, and a little hollow in the middle of 

 the lower edge, into which hollow the upper edge of the 5 th pair of feet's 

 second joint is inserted. The epimera of the l:st tail-segment have the 

 lower and hack corner rounded off, and those of the 2 ml segment have 

 the same corner extented into a short point, from which on the outer side 

 of the epimera a tolerably sharp edge or ridge (Fig. 21) stretches itself 

 obliquely upwards and forwards. The 4 th tail-segment's epimera have at 

 their lower extremity a large spine turned backwards. 



The eyes are not visible and have accordingly not been introduced 

 in the figure of the animal, but seem, judging from the inner portions, to 

 have been large and kidney- or bottle-shaped, and red. 



The head (fig. 2) is somewhat convex, the forehead almost trun- 

 cated, and has in the middle only an obtuse angle, as a slight indication 

 of a rostrum. On the sides of the head is a projecting obtuse-angled lobe 

 between the upper and lower antennae. The hollow under that lobe is ter- 

 minated at its lower extremity by a projecting process. 



The shaft of the upper-antennse is short, and its first joint longer 

 than the two following together, and the 2 mi a little longer than the third. 

 The flagellum consists of about 27 joints, the first of which is a little shorter 

 than the shaft, and has on the inner side numerous long thickly set bristles 

 of a brownish colour. The flagellum when laid back reaches about to the 

 middle of the 2 nd thoracal segment. The flagellum appendicular or ap- 

 pendage, which is but litttle shorter than half the flagellum, consists of 9 

 joints of which the first is the longest. 



The loAver-antennae are more than double as long as the upper, and 

 their flagellum consists of about 56 joints furnished with long bristles on 

 the under-side. The first joint in their shafts (Fig. 1 & 2, b l ) is espe- 

 cially large and distended, and for the greatest part of its length unpro- 

 tected by the head-shield. The 2 11,1 segment of the said shaft has on its 

 underside evidently a sharp process. ("Olfactory denticle," S. Bate). 



The upper and underlips (Fig. 3, c & fig. 4 & 5), which are about 

 5 millim. long, are of a very complicated construction. The former consti- 

 tutes the central piece (a) and the latter the two side pieces (b, b) which 

 are united at the base so as to be in some degree moveable, and can ap- 



