Q44 MR. L. N. G. RAMSAY ON 
I have compared these with specimens from the South of 
England, kindly lent by Major Elwes, and have been unable to 
find any points of specific difference between them. 
Clapareéde’s (loc. cit.) and McIntosh’s (8, p. 261) descriptions 
and figures fit the British Columbia specimens as well as the 
European ones. 
These tiny nereids, which range’from about 4°5 to 7 mm. in 
leneth, were found inhabiting globular masses of mucus on 
brown Ulva dredged in Departure Bay. In one case the mucus 
contained a mass of eggs as well as the worm. On removal the 
mucus was again secreted. The general colour of the living 
animals was green, with transverse brown markings on the 
dorsum of each segment. The anal cirri were in one case dull 
erimson (Collector’s notes). 
One of the specimens exhibitsa remarkable peculiarity, namely, 
the presence of a number of slender simple set interspersed 
among the ordinary compound spinigers. Whether these occur 
throughout the body I was unable to ascertain, but in the 
mid-region they are certainly present in several pairs of 
parapodia. 
In the 10th, for example, we have the following :— 
Notopodium: 15 spinigers, 17 simple sete. 
Neuropodium: 17 3 A airar eae a 
The setz are arranged in a single vertical series, the simple 
sete appearing singly or two together between the compound. 
The former are from one-fourth to one-third the diameter of the 
latter, and from about one-third to nearly three-fourths the 
length ; they are apparently perfectly smooth, and taper gradually 
to a fine point. 
I have not found any trace of these in the other three 
specimens, so that it is not possible to regard their presence as 
a specific distinction. 
It should be noted that the four specimens of Micronereis in 
this collection are of two different types—in this respect, that 
in two of them the trunk and especially the parapodia are so 
much swollen that adjacent parapodia are in contact with one 
another; while the remaining two have a scraggy, thin appear- 
ance, with wide intervals between adjacent parapodia. I am 
unable to account for this difference. The “fat” type is 
represented in text-fig. 2, while text-fig. 5 is of a parapodium 
of the other. 
Micronereis has hitherto been recorded only from the French 
coasts, both Mediterranean and Atlantic (Claparéde, St. Joseph), 
and from the South Coast of England (Zlwes). 
