79 ©. A. MAC MUNN. 
no chlorocruorin, no hemoglobin, no chlorophyll was present, 
and no discernible lipochrome. The solid pigment became 
reddish brown with sulphuric acid, and red brown with nitric 
acid. 
It is impossible to refer this pigment to any class, such 
as the lipochromoids, the melanoids, or uranidines, so far as 
one can judge from the description given of these by Kruken- 
berg.1. The residue seemed darker than it should have been 
had no change been undergone by the dissolved colouring 
matter ; but its solubility was so peculiar that it does not fall 
under any of the above-mentioned groups, and for the present 
I may perhaps be allowed to name it simply phyllodoce- 
green. 
Pontobdella (sp. ?).—In this worm I find another peculiar 
green pigment present, which has some resemblance to chloro- 
phyll in its spectrum, but differs markedly from chlorophyll. 
It is found in the integument, where it occurs mainly in large, 
greenly-pigmented cells, which are very noticeable on the 
peritoneal surface. These are figured in Mr. A. Gibbs Bourne’s 
paper? in this Journal for 1884, where they are represented not 
green but brown. This Annelid, as is well known, lives on 
fish-blood, and yet seems able to manufacture from it a pigment 
which is related to chlorophyll, although not actually identical 
with it. 
Absolute alcohol extracted this green colouring matter from 
the integumental cells, and became coloured a blue-green colour. 
On evaporation it left a green residue (almost emerald green), 
which when redissolved in absolute alcohol gave sp.9. Al- 
though this spectrum is somewhat like that of chlorophyll, 
yet the bands occur in a different position, and the green solu- 
tion does not fluoresce red. 
Ether dissolved the pigment, also forming a green solution, 
and giving the same spectrum. 
1 “Zur Kenntniss der Genese der Gallenfarbstoffe und der Melanine,’ 
‘Centralbl. f. d. Med. Wiss.,’ 1883, No. 44; and “ Grundziige,” loc. cit., 
8. 90, &e. 
2 «Quart. Journ. Mier. Sci.,’ No. xev. 
