200 THE FAUNA OF THE SALCOMBE ESTUARY. 



Carcinus M/ENAS (Penn.). This species is moderately common on 

 all the sand, mud, and zostera banks in Salcombe Harbour. In some 

 localities, notably the zostera bank off Ditch End, it is abundant, 

 although usually of a small size. In the latter place it makes burrows 

 in the patches of mud free from zostera, each burrow being one to two 

 feet long, and of a diameter corresponding to the size of the crab 

 inhabiting it. The burrow starts as a more or less vertical hole three 

 or four inches in length, runs horizontally for a foot or so and then 

 upwards, opening on the surface. The crabs also make holes in the 

 edges of the zostera banks, which are generally some inches above the 

 surface of the surrounding mud, and as these holes are fairly numerous 

 the zostera bed gradually becomes undermined at its edges, the over- 

 hanging portion ultimately breaking away. 



PoRTUNUS CORRUGATUS {Pcnn.). Was only taken once, in the dredge 

 between Snape's Point and the Salstone. In the Plymouth district it 

 is taken chiefly on the New Grounds, between the Breakwater light 

 and Drake's Island. 



PORTUNUS PUSILLUS {Leach). This species was commonest in dredge 

 material from between Snape's Point and the Salstone, a few only being 

 taken between Snape's Point and the mouth of the harbour. 



PoRTUNUS DEPURATOR {LcacJi). One only recorded, from dredgings 

 between Snape's Point and the mouth of the harbour. 



Ebalia tuberosa (Penn.). Present in all hauls of the dredge taken 

 between Snape's Point and the Salstone. A few only were taken 

 between Snape's Point and the mouth of the harbour. 



Eupagurus Bernhardus (Linn.). Young specimens of this species 

 were very common on the Salstone and opposite the Marine Hotel, 

 running about between tidemarks. It was present in all the dredgings 

 (excepting in the " Bag") in varying numbers. A few large ones were 

 taken inhabiting Buccinum shells to which were attached the anemone 

 Sagartia parasitica. 



Eupagurus Prideauxii {Leach). Several specimens of this hermit- 

 crab were present in dredgings taken between Salstone and the mouth 

 of the harbour, sometimes with Adamsia jKiUiata. 



Eupagurus guanensis (Thompson). This species was taken most 

 commonly between Snape's Point and the Salstone, a few being taken 

 west of the Salstone and between Snape's Point and the mouth, all in 

 the dredge. It generally inhabited a shell which was covered with the 

 sponge Suherites domuncula, the shell in many cases, however, having 

 been almost completely eaten away by the sponge. 



Anapagurus l^evis {Thompson). "Was taken frequently in the dredge, 

 in all parts of the channel between the mouth of the harbour and the 

 Salstone, generally inhabiting Turritella shells. 



