388 PROCEEDINGS : BOSTON SOCIETY NATURAL HISTORY. 
noid with eighteen pairs of elytra I have ever seen from that 
portion of the coast, it is highly probable that Kinberg’s species 
came from another part of the world. P. insignis was described 
by Baird in 1863 from specimens collected by J. Iv. Lord at 
Esquimalt, Vancouver Island. Ilis Lepidonotus grubei , described 
at the same time (and subsequently) with the foregoing, is in all 
probability a mere color variety of P. insignis. 
3. Polynoe lordi (Baird). 
Lepidonotus lordi Baird. Proc. zool. soc. London, Apr., 1863. 
Halosydna lordi Baird. Journ. Linn. soc. London, vol. 8 (Zool¬ 
ogy), 1865, p. 190. 
Polynoe lordi Johnson. Proc. Cal. acad. sciences, 3d ser., Zool¬ 
ogy, vol. 1, 1897, p. 175. Figs. 35, 44, 51. 
As in the case of P. insignis and P. fragilis , the Puget Sound 
region may be regarded as the type locality of the present species. 
All three were collected by J. K. Lord at Esquimalt, Vancouver 
Island. For an instructive and entertaining account of this curious 
Polynoid’s habits and habitat, the reader is referred to Lord’s 
“Naturalist in Vancouver ✓ Island and British Columbia,” vol. 2, 
page 9 (’66). As this somewhat rare work is doubtless inaccessible 
to many, I quote somewhat at length from Lord’s account. Speak¬ 
ing of Fissurella cratitia, the host of P. lordi, he says: “ I had 
found him at last and at home, so pounced upon him as a law¬ 
ful and legitimate prize. Knife and hammer soon severed his 
close attachment to the rocks; and turning him up, to take a peep at 
his powerful ring of muscle and strangely-formed breathing appa¬ 
ratus, I spied a worm evidently very uneasy, about three inches long, 
brown, and in shape like an ancient dagger blade. He appeared to 
me to be wriggling out from betwixt the folds of the foot or the 
mantle, and apparently most anxious to escape .... In displacing 
other shells, I found in nearly every one a similar tenant: the 
secret was discovered, the worm was a parasite, that lived in 
peace and good-fellowship with the Keyhole. . . . That the parasite 
worm does no harm is clearty proved by the healthy state of the 
mollusc in whose shell it takes up its abode .... On more carefully 
examining the position of the worm I found it was invariably 
coiled away in a semi-circle under the foot, like a ribbon on its edge, 
never Hat. This seems to me a wise provision; for the pressure of 
the muscles when the limpet grips the rock would crush a soft-bodied 
worm to death, if Rat; but by being edge on, which is the position 
