THE CRUSTACEA OF SUFFOLK.
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7. Pilumnus hirtellus, Linn. Hairy Ross-crab.—Rarely on Gorleston breakwater ; and a male that came ashore at Gorleston on 2 March 1933 (Trans, i, p. 226 and ii, p. 174). 8. Carcinus Mcenas, Penn. Harbour Crab.—By far the commonest Suffolk species, occurring everywhere down our coast from Breydon Water where it is locally called ' Kittiwitch' (Trans. Norf. Soc. xii, p. 551) and Lake Lothing (Stebbing); also in every brackish ditch. [Occurs fossil in Red Crag.] 9. Portumnus variegatus, Lch. Pennant's Swimming-crab.— First captured in Breydon Water during June 1906 (Tr. Norf. Soc. viii, p. 465); occurs rarely at Gorleston (Trans, i, 226 and ii, p. lxxvii). 10. Portunus puber, Linn. Velvet Swimming-crab.—Two large specimens, now in the Museum there, were taken in a shrimptrawl at Southwold during August 1934 (Collings). The first Norfolk specimen was brought in to Yarmouth by a shrimper during September 1910 (Tr. Norf. Soc. ix, p. 196). [Occurs fossil in Red Crag.] [P. corrugatus, Penn. Wrinkled Swimming-crab.—Hitherto known in Suffolk only as a fossil in Red Crag. Still living in Britain.] 11. P. arcuatus, Lch. Arch-fronted Swimming-crab.—-One washed ashore dead at Bawdsey on 24 March 1934 (Trans, ii, p. cli). 12. P. depurator, Linn. Cleanser Swimming-crab.—Not uncommon on the beach ; Gorleston in March 1933 and Kessingland in March 1934 (Trans, ii, pp. lxxvii and cxlviii); trawled commonly at Southwold in Sept. 1929; Sizewell, etc. [Occurs fossil in Red Crag.] 13. P. marmoreus, Lch. Marbled Swimming-crab.—Probably not uncommon, but often mistaken for the last species; I have a couple brought in to Southwold by fishing-boats in July 1902 (Morley); Dunwich and Sizewell (Trans, ii, pp. lxxix-xxxiv). 14. P. holsatus, Fab. Livid Swimming-crab.—The first Norfolk examples were brought in to Yarmouth by shrimp-boats in October 1906, and confirmed by Dr. Boulenger at Brit. Mus. (Trans. Norf. Soc. viii, p. 468). [Gonoplax rhomboides, L.=angulata, Fab.—Known in our County solely as a fossil occurring in the Red Crag. Still living in Britain. Ebalia tuberosa, Penn. Pennant's Ebalia.—Known in our County solely as a fossil occurring in the Red Crag. Still living m Britain.]