52 



The head has a similar shape, but it has two distinct eye- 

 specks near the anterior border. 



The body (Plate iv. fig. 24) has from 15 bristled segments in 

 the smallest to 28 in the largest, and the tail terminates 

 in four flat papilla?. The proportions of the first two body- 

 segments are the same. In that with 28 bristled segments, the 

 first twelve have bristles with tapering winged tips, these as well 

 as all behind having also long simple (unjointed) winged hooks, 

 which appear to agree in structure with Liniibricoiifiris gi-acilis 

 beside which these were found. 



So far as could be observed in transparent preparations 

 the dental apparatus corresponded in general structure with 

 that of Liiiubriconeveis gracilis, though the posterior appendages 

 of the maxilhu were less developed. The great dental plates 

 had 5 teeth, and the anterior plates respectively two teeth and 

 one tooth. No mandibles were present. A horny structure in the 

 gut posteriorly was either a portion of the dental apparatus which 

 had been shed, or a structure which had been swallowed as food, 

 the former being the more likely. These may be the young stages 

 of the previous species, if it were possible that the jointed 

 hooks anteriorly were only developed in the later stages. 



Obtained between tide-marks at St. James, in False Bay. 



Tkophonia capensis, Mcintosh, 1885. 



1885. Trophoniii capciisis, Mcintosh. Annel. " Challenger," p. 

 363, PI. xliv., figs. 7, 8, PI. xxxiiifl, figs, i — 3. 



The examples procured by Dr. Gilchrist are considerably 

 longer than that obtained by the " Challenger " between tide- 

 marks at Sea Point, Cape Town, in December, 1873, for they 

 measured up to 90 mm., whereas, the " Challenger " example 

 was only 60 mm. 



The outline anteriorly is somewhat fusiform, and then the 

 body gradually tapers to the tail which, however, is by no 

 means slender. It terminates in the vent — with a slightly crenate 

 margin. The segments were more numerous (about 90) than 

 in that described. The skm had numerous sand-grains and 

 siliceous and calcareous particles attached to it, the dorsal 

 surface being coated with larger semi-translucent (pale) frag- 

 ments — especially on the anterior region. The whole forms a 

 tough investment of hardened mucus, fragments of sponge- 

 spicules and light sand-grains, which can be peeled from the 

 body — carrying many of the bristles with it. Thus exposed, 

 the surface is definitely ringed and smooth — with papilla? 

 arranged at regular intervals in each segment. Anteriorly, 

 within the rows of bristles, are two rows of papillae ; between 



