186 DIATOMS OF NOVA SCOTIA MACKAY 



Stauroneis 



var. maxima. Maclean Pond (394). 

 var. lanceolata. Mill's Pond (395). 



var. elegans (new variety). (Larger than the type, 

 carries sometimes a central granule in the middle 

 of the median nodule. 150 mu. long by 30 wide. 

 3 to 15 striae in 10 mu.). Mill's (395). 

 producia Grun. Earltown Lake, Col. Co. (605). 

 Stodderi Greenl. var. superba. (new variety). (Area stau- 

 roneiform, large and recurved towards the borders 

 on which are seen longitudinal ribs. 90 to 125 

 mu. long. 9 longitudinal ribs in 10 mu., 15 trans- 

 verse striae.) High Pond, Pictou Co. (372). 



Stenopterobia anceps Breb. High (372); Besancon (733); 



Musquodoboit (879). 



Surirella Baileyi Laevis. High Pond, Pictou Co. (372). 



bifrons Ktz. Mackintosh (14, 15); Swamp (373); 



Ehr. Besancon Lake (733); Musquodoboit Lake 



(879). 

 var. Adolf Schmidt, Atlas 23:2. High Pond (372). 

 biseriata Breb. Mackintosh Lake (14, 15). 



elegans Ehr. Grant (3 74) ; Maclean (394) ; Mill's Pond (395). 

 cardinalis Kitt. Grant Lake (374); Mill's Pond (395). 

 cruciata A. S. var. (?) Swamp Pond (373). 



Kittonii A. S. var. (?) Mill's Pond (395). 



linearis W. Sm. Besancon Lake (733); Musquodoboit 



Lake (879). 

 var. eommutata. Earltown Lake (605). 



Surirella linearis W. Sm. var. constrida. High (372); Besan- 



con (733); Musquodoboit (879). 

 var. ellipiica. Musquodoboit Lake (879). 



oblonga Ehr. High Pond, Pictou Co. (372). 



Rattrayi A. S. Musquodoboit Lake (879). 



robusta Ehr. Grant (374); Maclean (394); Earltown 



(605); Besancon (733). 



Saxonica Auers. High (372); Swamp (373); Mill's (395); 



Besancon (733). 



