W. C. MSINTOSH ON BRITISH ANNELIDA. 377 
anterior border of the scale. The first pair are rounded; but the next are reniform or 
irregularly quadrate. They are surrounded by a madder-brown belt, with a tendency 
to the development of a denser portion in the anterior band. Some specimens have 
the centre of the scale likewise filled up with pigment, which also becomes deeply 
tinted. Every cirriform process is perfectly smooth, presenting neither wart nor granu- 
lation. The dorsal cirri taper much less than in Hermadion pellucidum, Ehlers: and 
there is a slight enlargement toward the tip, of a different character from that in the 
latter; and the organs are shorter. The under surface of the body is iridescent 
pinkish. 
The bristles are pale, and the dorsal much shorter than the ventral. The former are 
slightly curved, taper toward the tip, and are faintly serrated (Pl. LX VII. fig. 15). The 
tips of the ventral bristles are short, and present the usual gradational series from 
above downward. The ordinary appearance of one of the superior ventral bristles is 
shown in Pl. LX VII. fig. 16: scarcely any trace of the minute process is seen below the 
tip; and it disappears altogether ventrally (fig.17). ‘The developing forms, however, have 
this clearly indicated (P1. LX VII. fig. 15). In specimens from Valentia (S.W. Ireland) 
the process is very distinctly seen—for instance, when the bristle is slightly turned 
round (Pl. LXVII. fig. 18). It would also appear that the process is developed at the 
end of one of the spinigerous rows, and is therefore lateral in position. A well-formed 
Irish specimen is represented in fig. 19. The secondary process is less marked in the 
examples from the Channel Islands and Shetland, though indications are present in all. 
The specimens found near the mouth of Spatangus purpureus are of a deeper madder- 
brown or chestnut hue on the scales and cirri. 
MALMGRENIA ANDREAPOLIS, n. s. Not uncommon in the débris of the boats from deep- 
sea fishing, on the West Sands after storms, and in the stomachs of cod and haddock, 
St. Andrews. It is a species of some size, a few of the incomplete specimens being 
about an inch in length and about one fifth of an inch in breadth. It is readily distin- 
guished by the persistent brown ring on the scales after preservation in spirit. ‘The 
first pair of scales have a brown ring all round their border, and a brown spot in the 
centre. The second scale has a brown ring round the exposed part, and a patch near 
the outer border anteriorly, representing the spot in the centre of the first pair and 
that of the scales behind. Those after the second have a ring more or less complete, 
the broadest part being toward the inner margin, and the spot at the end of the anterior 
leg of the V-shaped mark becoming more evidently separated. About the sixth or 
seventh pair the V-shaped mark and the spot become distinct. The number of scales 
seems to be considerable; but as none of the specimens were complete it could not be 
determined. They are nearly smooth, a few small papilla (under a power of 350 diam.) 
being grouped in a limited area on the outer border, and no trace of these appears 
beyond the margin. 
