390 W. C. M‘IINTOSH’ ON BRITISH ANNELIDA. 
apparent absence of eyes in the spirit-preparations, and the large smooth scales. 
Kinberg, however, states that the eyes are on the peduncles. The feet are uniramous, 
with short ventral and dorsal cirri. Superiorly there is a series of long brush-shaped 
bristles with tufted tips ; next, the characteristic strong bristles with the brush on one side, 
and with a pencil-like crest at the tip; while inferiorly are elongate subulate bristles, 
which are boldly serrated at the commencement of the terminal region, then gradually 
taper to a finely serrated extremity. With the first or brush-like series are many 
short and apparently simple bristles. ‘They project only a short distance, and do not 
seem to have been noticed by Kinberg, who, however, mentions a similar kind in 
Eupompe. The structure of the terminal whip of the strong bristles is somewhat 
indistinctly represented by the latter author, since it is a true prolongation of the 
shaft with lateral sete. 
SIGALIONID. 
A single species of Sthenelais (S. boa, Johnst.) and Pholoé minuta, Fabr., are the 
only representatives of the family mentioned in the Catalogue of the British Museum. 
To these Sthenalais limicola, Ehlers (a scale of which is represented in Pl. LXX. 
fig. 13), Stgalion mathilde, Aud. & Ed., and S. buskit, M‘I., have since been added. 
The present notice further extends the list. 
STHENELAIS BOA, Johnst., is a species widely distributed from Shetland to the Channel 
Islands; and the S. 7dunw, H. Rathke, is, in all probability, referable to the same 
animal. 
8.7 ZETLANDICA, n.s. A fragmentary form dredged by Dr. Jeffreys in Shetland. The 
anterior region is injured, and the head absent, though the proboscis is present. ‘The 
scales are somewhat reniform, irregularly rounded anteriorly, and densely covered 
with flat papillae over the whole surface; on the folded edge of the scale they form 
low, smooth warts, larger in proportion than those in S. doa (Pl. LXX. fig. 15). The 
outer edge, again, bears a somewhat closely arranged series of short clavate papille, 
almost globular at the commencement, and with minute processes or palpocils on the 
summit. 
The superior lobe of the foot has numerous and rather small papillae, which end 
rather bluntly, the tip being provided with several secondary papille. The superior 
bristles are well developed, and have their rows of spines very distinctly marked. ‘The 
divisions of the inferior lobe are somewhat indistinct; but all are furnished with the 
small papillae having the secondary processes or warts at the tip. ‘There is a well-marked 
group of the latter just at the ventral margin where the inferior group of bristles 
emerges. ‘The superior yentral bristles (Pl. LXX. fig. 16—in chloride of calcium, and 
with the basal part of the terminal process slightly folded) are strong, with four or five 
