104 Prof. M'Intosli's Xotes from tJie 



fnnnel, the posterior region, moreover, being for nine or ten 

 segments moniliform. A median streak marks the ventral 

 snrface, which, further, is in parts somewliat less rounded 

 than the dorsah Tliere are nineteen bristled segments and 

 four without bristles posteriorly. 



The fused pro- and peristominm form a thickened mass, 

 broad in front and constricted behind, where it joins the 

 first bristled segment. The first three bristled segments are 

 nearly eqnal in length, the first being the stoutest in the 

 preparations, and each bears a tuft of bristles and a golden 

 spine, which in large examples is very powerful though not 

 long. It has a stout striated shaft, enlarges from a slightly 

 narrowed base, and again diminishes to the tip, which is 

 likewise finely striated (longitudinally) internally and often 

 has a distinct curvature at the tip. The bristles of these 

 segments are in two groups, the larger being capillary 

 bristles with fairly stout shafts and somewhat narrow wings 

 at the finely attenuate tip. The other group consists of 

 capillary bristles with more slender shafts and more finely 

 attenuate tips. In the example from St, Magnus Bay the 

 last tuft of bristles in front of the funnel had a mere trace of 

 a wing with the edge faiiitly serrated. 



The first three bristled segments do not present marked 

 glandular areas, but the fourth has a narrow ring at the 

 anterior part of the segment and in front of the bristle- 

 bundles. The fifth, sixth, seventh, and eighth segments have 

 broader belts of glandular tissue which occur in the same 

 part of the segment and envelop the ridges for the hooks. 

 The ninth foot occurs at the posterior part of the segment, 

 and is glandular, as are those which follow, as far as the 

 nineteenth. Each of the four terminal segments has a 

 glandular ridge on each side, the last forming, by nearly 

 coalescing with its neighbour, a kind of ring. 



The six segments in front of the terminal funnel differ in 

 shape from the preceding, being narrow in front and wider 

 posteriorly, the elevations for the hooks or the corresponding 

 glandular areas without hooks behig placed on the prominent 

 angles posteriorly. The seventeenth and eighteenth bristled 

 segments — that is, the first two of this series — are, as a rule, 

 those best marked, though the condition varies in the preserved 

 examples. 



The anal funnel appears to vary considerably in regard to 

 the number and the shape of the cirri, those with few cirri 

 having them broad at the base and more distinctly conical, 

 whilst in those in which the cirri approach thirty in number 

 they are more filiform, though in one from North Unst the 



