196
REPORT ON MARINE SPECIMENS
MACRURA.
Crangon vulgaris (L.). Common Shrimp. A few
Pandalus montagui, Leach (=annulicornis). "The Pink
Shrimp."
ISOPODA.
*Sphaeroma serratum (Fabr).
Idothea balthica (=tricuspidata).
AMPHIPODA.
*Apherusa bispinosa (Bate).
*Dexamine spinosa (Mont.).
*Aora typica
*Podocerus falcatus (Mont.).
Corophium bonnellii, M. Edw. (=crassicorne);
*Unciola crenatipalmata (Bate);
Caprella linearis (L.). Abundant.
POLYZOA.
Membranipora lacroixii, Aud. On shells of mussels.
M. pilosa, L., var. dentata. On fronds of Laminaria and
other large algae.
Alcyonidium gelatinosum, L. Very abundant in the
Orwell near Pin Mill.
A. mytili, Dalz. A yellowish incrustation on mussel shells.
Amathia lendigera, L.
Valkeria uva, L.
CHAETOPODA.
Lepidonotus (Polynoe) squamatus, L. Fairly abundant.
Some specimens of mud-inhabiting worms have not yet been
identified.
Sabella penicillus. Empty tubes.
ECHINODERMATA.
Asterias rubens, L. "Five-fingers." A few.
Solaster papposa, Fabr. "Sun-star." Common.
Echinus miliaris, L. "Purple-tipped Urchin." Taken
in great quantities off Harwich.
Thyone fusus, O. F. M. One specimen. Dr. Sorby says
that he dredged this once near Harwich and in the
Orwell, but in each case only one specimen was taken.3
Victoria History of Essex, vol. i., p. 87.