tral cirri are long and large. Body moderately elongated. 

 Scales 15, ovoid, blackish grey, and smooth, with the exception 

 of a triangular group of blunt tubercles near the anterior notch. 

 Foot somewhat short with feebly developed pale dorsal bristles 

 having many thecate infusoria parasitic on them. They have a 

 short, peculiarly curved tip with line rows of spikes. The 

 ventral bristles have a well-marked hook at the tip and a 

 secondary process beneath, besides a spinous edge. The 

 bristles on the whole approach those of Halosydna, whilst the 

 head somewhat resembles that of Lepidonotus. 



Hemilepidia TUBERCULArA, Schmarda, 1861. 



1861. Heniilepidia tiiberculata, Schmarda, Neue wirb. Thiere, 

 I., II., p. 149, Taf. xxxvii., fig. 317, and woodcut. 



1885? Polynoc atiennata, M'Intosh, Ann. "Challenger" p. 

 120, PI. XV., fig. 2., PI. XX., fig. 9. PI. xia. figs. 8 and 9. 



This species was first described by Schmarda as having been 

 procured in Table Bay in shallow water under stones. The 

 present example was obtained between tide marks at St James', 

 in False Bay, 5th October, 1902. 



It measures about 45 mm. in length, while its widest part 

 anteriorly, inclusive of the bristles, is 7 mm. A considerable 

 amount of coloration still remains along the centre of the dorsum, 

 from the head to the tail, and it is somewhat symmetrically 

 arranged throughout, especially in the posterior region which is 

 devoid of scales. The sides of the body anteriorly covered by 

 the scales, are pale as likewise are the feet, the bases of the 

 tapering dorsal cirri, however, being set in a ring of dark pig- 

 ment with a crescent attached in front, whilst the organ itself is 

 coloured about half its length. The bare posterior region again 

 is prettily marked with light and dark touches, making a surface 

 almost like chain-work. Along the centre is a row of papilla 

 elongated from before backward and dark coloured, a bar of 

 pigment tapering from each side and passing between the two 

 nearest lateral papillae, since they are alternately arranged with 

 the median. Their tips are pale, whilst a triangle of dark pig- 

 ment passes inward from each, the apex entering the pale 

 region in front and rear of the central papilla, and thus behind 

 the middle of each segment. Externally a dark patch intervenes 

 between each papilla and surrounds the base of the dorsal 

 cirrus, a little pigment also appearing on the basal part of the 

 column of the organ. Pigment of an iridescent dark brownish 

 hue tints the ventral surface for nearly two thirds of its posterior 

 moiety, each segment having two long lozenges on each side, 

 the posterior pair, which have their broad bases internally, being 



