266 Dr. W. C. M'Intosh on the Annelida 



cirri short, the latter having small and sparsely distributed 

 papillae. The dorsal cirri do not quite reach the tip of the 

 bristles, while the ventral do not extend beyond the base of 

 the lowest bristles. A conspicuous row of brownish papillae 

 runs along the centre of the dorsum. 



The scales are small, occupying only the lateral region of 

 the body, and leave seventeen segments uncovered posteriorly. 

 Their number seems to be fifteen pairs ; but in none were they 

 complete. They are more or less circular throughout, and 

 have only a very few short papillae on the posterior and outer 

 edge. 



The dorsal branch of the foot bears a series of rather short 

 slender translucent bristles, very finely serrated (PI. X. fig. 5). 

 The superior series of the ventral group have elongated tips ter- 

 minating in a fine point (PI. X. fig. 6). The spiniferous rows 

 are elevated on scale-like processes, as in certain forms de- 

 scribed in the ' Porcupine ' collection, with the free edges 

 finely pectinated. The shaft of these bristles is quite smooth, 

 while the dilated terminal portion is marked by fine longitu- 

 dinal lines. The foregoing are succeeded by a stouter series 

 with shorter tips (PI. X. figs. 7 & 8), with only five or six 

 conspicuous rows of spines, while the tip ends in a stout 

 slightly hooked point. The first of the series has a more 

 slender point, and with the others distinguish the species from 

 Malmgren's N. ToreUi. At the exti-eme ventral edge, again, 

 a few slender bristles with finely tapered tips occur. 



Nemidta (?) Lawrenciiy u. sp. 



In this form the scales are tolerably large and cover the back 

 entirely, except anteriorly in the region of the fom'th and fifth 

 pairs. The segments number about 38. 



The head is elongated from before backwards, and the 

 pointed anterior lobes diverge in a characteristic manner. The 

 eyes are small — a pair situated near tlie posterior border, and 

 a larger pair on the lateral region in front of the middle line. 

 Tentacle somewhat slender. Palpi furnished with distinct 

 clavate papillae. Tentacular and dorsal cutI with short cla- 

 vate papilla?. The short and tapering dorsal cirri scarcely 

 reach the tip of the bristles. The ventral cirri seem to be 

 smooth. 



The scales are somewhat ovoid, and nearly reach the poste- 

 rior extremity of the animal, which has two long tapering 

 caudal styles. They are almost smooth, a very few minute 

 papillae only occurring at wide intervals. Their number 

 appears to be about fifteen pairs. Four bristled segments 



