of the North of Ireland. 77 



in our present waters, occurs throughout our later post-tertiary deposits, while 

 8. siliqua, which is not found in these heds, appears to have now taken its 

 place, being abundant in suitable localities. 



Pandora inaequivalvls, Zinne. 



var. obtusa. "Dredged off Carrickfergus, Mr. Hyndman ; subsequently by 

 Mr. Hyndman and myself in Strangford Lough" — Thompson. Taken alive 

 off Black Head and Donaghadee, in 15 to 20 fathoms, by Hyndman ; and off 

 the entrance of Strangford Lough, in 18-20 fathoms, by Dickie. (All sub P. 

 obtusa). Dead on the Turbot Bank and elsewhere. 



Iiyon*ia Worveglca, Chemnitz. 



This curious shell is rare in the district. " Dredged in Belfast and 

 Strangford Loughs, in from 6 to 12 fathoms, among seaweed" — Thompson. 

 Living in from 8 to 12 fathoms in Belfast Lough, and dead on the Turbot 

 Bank — Hyndman. Dickie took it alive in 15 to 25 fathoms in Strangford 

 Lough, and dead in shallower water. Off Crawf ordsburn, 6 to 7 fathoms, dead, 

 but fresh and valves united — Mr. S. A. Stewart. 



Tnracia praetenuis, Pulteney. 



Thompson says of it {sub Anatina praetenuis) — " 'Belfast Lough, rare,' 

 Brown. The latter locality probably a mistake. Magilligan is the only 

 northern locality in which the species has yet been met with by Mr. Hyndman 

 or myself ; it is thrown ashore quite fresh there ". Dredged by Hyndman in 

 15, 20 (valves united), and 27 fathoms off Belfast Lough, and in 20 fathoms 

 off Larne, dead in each instance. "Coast of Down (Patterson)" — Forbes 

 and Hanley. (All sub Cochlodesma prcetenue) . I have a valve found by my 

 brother at Magilligan. 

 Tnracia papyraoea, Foil. 



"'Belfast and Strangford " — Thompson {sub T. declivis, Thor.). Dredged by 

 Hyndman at various points around the entrance to Belfast Lough, in 20 to 30 

 fathoms, and by Dickie both in and outside of Strangford Lough, in 7-20 

 fathoms; in all instances dead {sub T. phaseolina). Dead, in 6-8 fathoms, 

 off Bangor and Donaghadee — Mr. S. A. Stewart. 



var. villosiuscula. Dead, in from 1 to 30 fathoms, off Belfast Lough and 



Island Magee — Hyndman {sub T. villosiuscula). 

 Tnracia pubescens, Pulteney. 



" Belfast Bay " —Thompson. On the Turbot Bank, rare, dead— Hyndman. 



" The reputed Irish localities are doubtful" — Jeffreys. 



Tnracia convexa, W. Wood. 



"Difficult to procure on account of its habit of burrowing rather deeply in 

 muddy sand" — Jeffreys, which may perhaps account for its not having been 

 taken alive in the province. "In Strangford Lough" — Thompson; speci- 

 mens from thence are in Thompson's collection in the Belfast Museum. " JSTot 

 known to be now living in the Bay ; two specimens have been dredged off 



