324 G. W. LAMPLUGH ON SHELLY PATCHES IN THE 
2 are peculiar to Bridlington as fossils, one not being known 
living, and the other having a high northern range. 
1 is found in an English Boulder-clay, but not in Scotland. 
5 are most abundant in those Scotch clays in which the fauna is 
extremely arctic. 
11 are common in all Scotch glacial clay. 
1 has been found in one Scotch glacial clay only. 
1 has been detected in an upper bed only, but is known to live 
in the Gulf of St. Lawrence. 
The whole group is remarkably analogous to that found in: the 
glacial clays of the East of Scotland; and the newly exposed clay 
has yielded a large proportion of the same species. 
The following is a list of the species obtained chiefly from the 
shelly patches described in Mr. Lamplugh’s paper. 
Genus CyrruEre, Muller. 
C. concinna, Jones. Common. 
C. dunelmensis, Norman. Moderately common. 
C. mirabilis, Brady. Common. 
C. tuberculata, G. O. Sars. Common. 
C. villosa, G. O. Sars. Rare. 
C. fimbriata, Norman. Rare. 
C. M°Chesneyi, Brady & Crosskey. Rare. 
C. globulifera, Brady. Rare. 
Genus CrrHeripea, Bosquet. 
C. Sorbyana, Jones. Common. 
C. elongata, Brady. Rare. 
Genus Cyrueropreron, G. O. Sars. 
C. latissimum, Norman. Rare. 
Genus Evcytuere, Brady. 
E. argus, G. O. Sars. Common. 
Genus Kriruez, Brady, Crosskey, & Robertson. 
K. glacialis, B., C., & R. Common. 
With two exceptions the whole of these species are characteristic 
of the Scotch glacial clays, and especially of those near the eastern 
coast. O. mirabilis, Cytheridea Sorbyana, and Krithe glacialis, for 
example, are especially associated with such arctic mollusca as Pecten 
grenlandicus, Leda arctica, and Thracia myopsis in the glacial clays of 
the East of Scotland, and are among the most abundant species in the 
Bridlington shelly patches. The forms I have excepted from this 
general statement are Cytheridea elongata and Cythere M*Chesney?. 
Of these C. M°Chesneyi, Mr. Brady informs me, is“ interesting as being 
the first notice of it on this side of the Atlantic.” It was originally 
