86 TRANSACTIONS, NATURAL HISTORY SOCIETY OF GLASGOW. 



stones, amongst the pebbles and gravel of the coast, 

 and is found on the English and French coasts of 

 the English Channel, from Kent to Cornwall, and 

 in the Mediterranean. We have dredged fine speci- 

 mens in Plymouth Sound in the month of August. 

 Dr. Kinahan obtained it in the River Lagan, Belfast, 

 and in the River Dodder, Dublin. We have observed 

 quantities in the brackish streams on Loughor Marsh, 

 near Swansea, mixed with Palcemon, Carcinus, and 

 Talitrus." 



SPHiEROMA RUGICAUDA, Leach. 



Sphceroma rugicauda, Leach, Edin. Enc, vii., pp. 

 405, 433. 



Habitat. — Plentiful in a weedy brackish pool ; 

 bottom soft mud, a little above ordinary high-water 

 mark, Hunterston, Ayrshire. When put into spirits, 

 they rolled themselves up into a round ball. Taken 

 abundantly on the island of Ulva, Mull; and at the 

 mouth of the River Tamar, Devonshire, Dr. Leach ; 

 Berwick-upon-Tweed, Dr. Johnston ; Belfast Bay, Dr. 

 Kinahan. 



sphceroma curtum, Leach. 



Sphairoma curtum, Leach, Diet. Sci. Nat., xii., p. 345. 



Var. Sphazroma Griffithsii, Leach, MSS. in Brit. Mus. 



Habitat. — Dredged off the Ayrshire coast west of 

 Portincross, 6 fathoms, bottom sand and stones. 

 Torbay, Mr. Griffiths ; several were found in a 

 Balanus shell in Belfast Bay by Mr. W. Thompson. 



Genus Dynamene, Leach. 



DYNAMENE RUBRA, Montagu. 



Oniscus ruber, Montagu, MSS. 



Dynamene rubra, Leach, Diet. Sci. Nat., xii., p. 344. 



Cymodocea rubra, Milne Edwards, Crust., hi., p. 216. 



Habitat. — Taken at Cumbrae, Firth of Clyde, by 

 the Rev. A. M. Norman ; Bangor, Mr. W. Thompson ; 

 south-west coast of England, Montagu ; Firestone 

 Bay, near Plymouth, Bate and Westwood. 



