180 Prof. McIntosh’s Notes from the 
touching the ground. The larval forms of Nerine , Polydora , 
Polynoe , and Terelella were also obtained ; but this net was 
less productive of PolycTiceta than the bottom-net. 
In the surface-net, in addition to the forms already men- 
tioned, larvae of Nereis and young forms of Magelona papilli- 
cornis appeared. Tomopteris was procured only once. In 
the open sea near the Bell Rock the chief novelty was a 
young example of Hermadion pellucidum. 
Throughout September the bottom-nets were especially rich 
in the larval, post-larval, and young Annelids, the most con- 
spicuous being still those of the Spionida3, e. g. Nerine , Spio , 
and Polydora , from the minute larvae with the enormous 
bristles to the more elongated forms with a pair of tentacles. 
The fifth body-segment in the Polydorce showed the charac- 
teristic bristles with the hook at the tip, and some reached 
2*5 millim. in length. The abundance of Polydora is not 
surprising, since it is one of the most common species in the 
sea, perforating the rocks along the beach and shells — both 
living and dead — from the tidal margin to deep water. The 
adult forms of Nerine , Scolecolepis , and Spio are also very 
frequent between tide-marks. 
Besides the foregoing was a young Aphrodita 5 millim. 
long, trochospheres of Polynoidae with post-larval and young 
forms, a young example of Lcenilla setosissima about 1 
millim. long with bristles and scales, a young specimen 
of Pholoe minuta with four pairs of parapodia, a young 
NepJithys with six pairs, a caudal style of two segments 
articulated like the glandular hair of a plant, and a young 
Cirratulus about 3 millim. long. Young Phyllodocidae, 
Terebellce , and Ariciidae, unknown trochospheres, and a 
young Turbellarian of a light greenish colour by transmitted 
light were also present. Autolytus prolifer , after an absence 
of some weeks, again made its appearance this month. 
The midwater-net presented a contrast to the foregoing, 
since larval forms of the Spionidae only were observed occa- 
sionally, and once a young example of Nerine J inch long. 
On the other hand, Tomopteris f inch in length was obtained 
several times, though sparingly. Sagittce also occurred fre- 
quently in this net, but in small numbers, except on the oth. 
They ranged from 12 to 16 millim. 
Larval Annelids were much more frequent in the surface- 
nets than in the latter, though they fell far short of the 
bottom-net in this respect. The majority pertained to the 
Spionidae, as already explained, and some were obtained in 
every haul of the net, though larval forms of the Polynoida 3 
occurred occasionally. Tomopteris appeared only once, but 
