OF NORTHUMBERLAND AND DURHAM. 75 



obtained from the deep-water fishing boats by Mr. King. They 

 were found attached to the byssus of a Modiola valgarls brought 

 up from a depth of forty fathoms, twenty-five miles from the 

 coast of Northumberland. As this is the third time that this 

 species, a well-known inhabitant of the north seas, has been 

 found between the Tyne and the Frith of Forth, there can be 

 little doubt that it inhabits the deep water of our coast. 



Order. LAMELLIBRANCHIATA, Blainville. 



Sub-Order. Monomyaria, Lamarck. 



Family. Ostreid^, Guilding. 



76. ANOMIA, Linnwus. 



1. A. EPHIPPIUM, Linn. 



Anomia ephipjnum, Mont. Test. Brit. 155. 

 On most parts of the coast, but not common. 

 The Anomia electrica of Brown, found at Cullercoats, is most 

 likely a variety of this species. 



2. A. SQUAMULA, Linn. 



Anomia squamula, Mont. Test. Brit. 156. 

 On oysters, pectens, and other shells, frequent. 



3. A. PATELLIFORMIS, Linn. 



Anomia undidata, Mont. Test. Brit. 157, t. 4, f. 6. 



On the under sides of rocks and stones between tide-marks, 

 frequent. 



The Ostrea striata of British authors, first noticed by Lister 

 as common upon the sands at the mouth of the Tees, we take to 

 be this species, the upper valve of which is frequently thrown up 

 on our shores, and has the inside green, with a white muscular 

 impression as described by Lister. The under valve (which 

 would have shewn it to be an Anomia) is very thin and fragile, 

 and, in such cases, always absent. 



4. A. ACULEATA, 3Iidl. 



Anomia aculeata, Mont. Test. Brit. 157, t. 4, f. 5. 

 On sea weeds between tide -marks, frequent. 



5. A. CYLiNDRicA, Gmel. 



Anomia cymbiformis, Mont. Test. Brit. Supp. 64. 



L 



