MALDANIDAE 173 



Genus Nicomache, Malmgren 



Nicomache lumbricalis (Fabricius). 



Fauvel, 1927, p. 190, fig. 66 a~i. 



Nicomache capensis, Mcintosh, 1885, p. 399, pi. xlvi, fig. 4; pl.xxiv A, figs. 18-19; pi. xxxvii A, 



fig. 2. 



Nicomache lumbricalis, var. capensis, Mcintosh, 1904, p. 71, pi. vi, fig. 32. 



Saldanha Bay, South Africa. Beach collection. Two specimens. 



Remarks. I am unable to find any distinction between these specimens and European 

 examples of this species. Mcintosh {loc. cit. 1904) gives the number of chaetigers of 

 his example from the Cape as 20. My complete specimen has 22 chaetigers, as in the 

 European form. 



Nicomache sp. 



St. 190. 24. iii. 27. Bismarck Strait, Palmer Archipelago. 64° 56' 00" S, 65° 35' 00" W. 315 m. 

 Gear DLH. Bottom: mud and rock. Three specimens. 93-126 m. Bottom: stones, mud and rock. 

 One specimen. 



Description. The largest fragment has eight chaetigers and measures 52 mm. by 

 4 mm. The head (Fig. 71, ci and b) and the first two chaetigers have a strong reddish 

 brown colour on the dorsal surface, the colour being most intense along the cephalic 

 keel. Otherwise there is no pigmentation. 



There is no cephalic border; the prostomium is bluntly rounded and without eye 

 spots. The cephalic keel is well developed, and lies between the nuchal organs: these 

 form a pair of depressions wider in front than behind and diverging from behind for- 

 wards; they do not curve round in front as is usual in the genus. Ventrally there is 

 a very large mouth with a folded posterior lip. 



The head and buccal segment are equal in length to the ist chaetiger. The first three 

 chaetigers are all of about the same length, the 4th is shorter than these and the 5th, 

 6th and 7th are each about equal to the combined lengths of the 2nd and 3rd. These 

 proportions do not hold good for the single specimen from 93-126 m., in which the 

 increase in the length of the segments begins with the 7th chaetiger. The comparative 

 length of the segments must depend on the mode of contraction of the specimen. Pre- 

 chaetal glandular bands occur on the 4th to the 7th chaetigers, and on the 8th the 

 glandular areas are reduced to uncinigerous pads. The feet lie in the anterior third of 

 the segments as far as the 7th chaetiger: the boundary between the 7th and 8th 

 chaetigers is indistinguishable. The first three chaetigers have one to two large 

 untoothed ventral acicular spines. 



The dorsal bundle contains bristles of three kinds : stout bordered bristles ending 

 in hirsute tips (Fig. 71, c), long, slender, very delicately pennate bristles (Fig. 71, d), 

 and simple capillary bristles (Fig. 71, e). The ventral hooks (Fig. 71,/) have three teeth 

 above the main fang. 



