FROM THE ORWELL AND STOUR. 197
COELENTERATA.
HYDROZOA.
Eudendrium ramosum, L.
Halecium halecinum, L.
Sertularia pumila, L.
S. argentea, E. and Sol.
Plumularia echinulata, Lam. On fronds of Laminaria.
P. setacea, Ellis. On mussel shells.
Aurelia aurita, Lam. Abundant near Pin Mill, on the
Orwell.
ACTINOZOA (Sea Anemones).
One small specimen of a Sea-anemone was included ; but
this has not yet been identified.
PORIFERA (Sponges).
Clione celata, Grant.
*Suberites sp. ?
Halichondria panicea, Pall.
Chalina oculata, Pall.
*Halisarca sp. ?
Grantia compressa, Auct.
Sycon ciliatum, Fabr.
*Leucosolenia complicata, (Mont.).
MARINE ALGAE.
GREEN (CHLOROPHYCEAE),
Cladophora flavescens, Harv.
C. rupestris, Kutz.
Enteromorpha clathrata, J. Ag.
E. intestinalis, Link.
E. prolifera, J. Ag.
b. tubulosa, Reimb.
Ulva latissima, J. Ag.
RED (RHODOPHYCEAE).
Ceramium rubrum, C. Ag.
Chondrus crispus, Stackh.
Gracilaria confervoides, Grev.
Polysiphonia elongata, Grev.
P. nigrescens, Grev.
Polyides rotundus, Grev.
Rhodomela subfusca, C. Ag.