346 MALDANE SARSI. 



The following segment has a bristle-tuft and an elevated pad or riclge with a short 

 row of hooks, the elevation meeting its fellow of the opposite side in the mid-ventral line. 

 In large examples, however, this ridge is less evident, the whole ventral area being 

 glandular, and the same occurs with the third and fourth segments, the rows in these 

 having a gradually increasing number of hooks. The fifth and sixth segments likewise 

 have a thick glandular coating ventrally and ventro-laterally, the long rows of hooks and 

 the bristle-tuft in each being at the dorso-lateral edge. A differentiated glandular area 

 lies between the sixth and seventh setigerous regions, the ventral surface being glandular 

 as before. At the eighth the glandular area stretches from the setigerous region of one 

 side to the other, and thus characterises it, for the eighth segment has only a small 

 triangular patch in front, the ventral surface being devoid of glands until the ninth 

 setigerous area, which is glandular ventrally and laterally up to the bristle-tuft. In the 

 lateral region, between the eighth and ninth setigerous regions, is a transversely striated 

 glandular band as between the seventh and eighth segments, and this band continues to 

 the last setigerous process. In the large examples the glandular setigerous region at each 

 side is connected by a ventral band of the same tissue, and often an accessory central 

 piece behind it, but toward the tail these are less marked. Two elevations on each side in 

 front of the caudal plate have no hooks or bristles, but they seem to be glandular. 



The bristles project from the dorsal end of each row of hooks, and consist of two 

 groups, viz. an anterior with a marked curve after the appearance of the wing (Plate 

 CX, figs. 8' and 8 b) and with a finely tapered tip, and a posterior group which in the 

 first foot have a similar shaft with a straight tip, with narrow wings and a few distinct 

 spikes on the finely tapered extremity (Plate CX, figs. 8 and 8 a). In the next bristled 

 segment (second) the anterior bristles with the curved tips and broad wiugs have the 

 tapering tips furnished with one or two pairs of spikes which arise opposite each other. 

 The long posterior (or inner) bristles have narrow wings with long, hair-like tips, the 

 stronger series of which do not show spines thereon. A more slender series, however, 

 has the very long, hair-like extremity minutely and symmetrically spinous. The 

 succeeding feet present bristles with larger and longer hair-like tips in both series, and 

 these delicate extremities are all similarly spinous, that is, the sides are armed with 

 symmetrical pairs of spikes. Toward the posterior extremity, as in the last two bristled 

 segments, the bristles are very long, yet each group retains certain of the characters 

 observed in front ; the anterior series showing the curvature of the tip, and both having 

 long and attenuate spinous prolongations, the posterior, however, far exceeding the other 

 in length. The hooks (Plate CX, fig. 8 c) are characterised by a long, curved shaft, which 

 gently enlarges from the base to the shoulder and is striated and tinted. The tip is 

 contracted beyond the shoulder, is paler, then gently dilates to the neck and crown, the 

 centre being also striated longitudinally. The great fang leaves the neck at somewhat 

 less than a right angle, and has a little below it a tuft of stiff hairs, which often curve 

 upward beyond the fang. The great development of the spines behind the main fang 

 makes the crown broad, though only two spines can clearly be made out in lateral view. 

 In antero-posterior view, in all probability, additional points may be seen. 



Arwidsson notes that the segmental organs extend from the seventh to the ninth 

 segment. 



