BIHANG TILL K. SV. VET.-AKAD. HANDL. BAND 21. AFD. III. NIO 2. 27 



Var. in-oboscidea Grun. — V. H. XXXI, 10. 



Kv. 32, 34. V. 12, Nu. 5. — Rather rare. 

 Var. longissima (Ehb.) Perag. & Hér. — Aiiv. III, 13. 

 Kv. 2(). — Rare. 

 Var. bideus A. Cl. n. var. 



Valve impressed in the middle of tlie dorsal side, with 

 rostrate ends. 



Kv. 2(). — Rare. 



E. Argus KiTTZ. — V. H. XXXI, 15—17. 



Jm. (), Kk. 48, Ke. 4!). — Rare. 



E. gihha KtJTZ. — V. H. XXXII, 1, 2. 

 Jm. (), Kv. 2Q. — Rare. 



Var. ventricosa Grun. — V. H. XXXII, 4, 5. 

 Kv. 32, Nu. 25. — Rare. 



E. Sorex KuTZ. — V. H. XXXIl, 6—8. 

 Ke. 49. — Rare. 



Eunotiu Ehb. 



E. ^racilis (Ehb.) Rab. — V. H. XXXIII, 1, 2. 



Valve arcuate, narrow, linear with rounded-capitate ends, 

 0,08 to 0,11 mm. in length, 0,oo4 to 0,oo7 mm. in breadth. 

 Striae 12 in O.oi mm., equidistant. 



Kv. 1, Ks. 15, 20, Km. 10, S.-K. 7, Nu. 17, 18, 25, Ke. 49. 

 — Ratlier frequent. 



E. major (W. Sm.) Rabh. — V. H. XXXIV, 14. 



Valve sliglitly arcuate, linear, constricted under the slightiy 

 capitate, rounded ends; 0,09 to 0, 12 mm. in length, 0,oi mm. 

 in breadth, Striae not equidistant, 12 in 0,oi mm. 



Kv. 1, 10, Jm. 6, Ks. 20, Km. 10, Tj. 42, Gl. 47. — Mode- 

 rately frequent. 



Var. ventricosa A. Cl. n. var. — Pl. I, 37. 



Valve 0,0 9 mm. in length, in the middle gibbous on the 

 ventral side. The projecting part of the valve separated from 

 the rest by a distinct pseudo-raphe. Striae not equidistant, 

 about 11 in 0, 01 mm. 



Kv. 16, Km. 10. — Rare. 



