PLATE XLIX. 



Fig. 



1. Phyllodoce lamelligera, Linn., a variety, from Plymouth Sound, September 30th, 1905. 



2. Dorsal aspect of a few segments from the middle of the foregoing. Enlarged. 



3. Odontosyllis gibba, Clap., dorsal view of an example from Plymouth. 



4. Middle segments of the foregoing, from the dorsum. Enlarged. 



5. Odontosyllis fulgurans, Aud. & Ed., from Plymouth. The tail is incomplete. Enlarged. 



6. Syllis Krohnii, Ehlers, from the tidal rocks, Lochmaddy, North Uist. It lived for 



months at Murthly. Enlarged. 



7. Autolytus, deeply tinted like pictus, but probably prolifer, pelagic female, with eggs 



in ventral sac. Enlarged. 



8. Nurse-stock of Autolytus pictus, Ehlers, from the West Pocks, St. Andrews. Enlarged. 



