BIIIANG TILL K. SV. VET.-AKAD. IIANDL. BAND 21. AFD. III. N:0 2. 21 



Var. exilissima Grun. — V. H. XXV, 12. 



Kv. 1, Nu. 18. — Rare. 



Var. micropiis KuTZ. — V. H. XXV, 4, o, (!. 



Nii. 14, 25, Km. 30. — Somewliat rare. 



Var. uudulata A. Cl. n. var. — Pl. I, 18. 



Valve triundulate, with rostrate ends, O, o 2 mm. in leugtli, 

 0,0 0-1 mm. in breadth. Axial and central areas indistinct. 

 Striae 16 in (>,oi mm. 



Kv. 1. — Rare. 



G. augustatuni KuTZ. — V. H. XXIV, 49, 50, Cl. 1. c. p. 181. 

 Kv. It), ;32, Tr. 38, S.-K. 7, V. 12, Jm. G. — Not rare. 

 Var. producta Grun. — V. H. XXIV, 52, 53. 



Nu. 18, Jm. 6, Km. 30, V. 12, Gl. 43, Kk. 48, Ke. 49. — 

 Somewhat freqnent. 



Var.? lapponica A. Cl. n. var. — PL I, 20, 21. 



Var. linear, almost symmetrical, sometimes slightly cym- 

 belloid, 0,02 f) to 0, 055 mm. in length, 0,oi mm. in breadth, 

 occasionally slightly trinndulate; with rostrate to capitate 

 ends. Striae 13 in 0,o! mm. Axial area narrow, distinct, 

 central area a broad, transverse fascia, with a few irre- 

 gular striae on one or both sides. 



Nii. 14 (abnndant), 37. — Somewhat rare. 



G. iutricatum KtJTZ. — V. H. XXIV, 29—31, Cl. 1. c. p. 181. 

 Kv. 1, 26, S.-K. 7, Tr. 38, Ks. 49. — Somewhat rare. 

 Var. Vibrio Ehb. — V. H. XXIV, 26. 

 Kv. 9, 32, Nn. 17, 38. — Rather rare. 



G. subtile EiiB. — V. H. XXIII, 13, 14, Cl. 1. c. p. 182. 



Ks. 15. — Rare. 



Var. Sagitta Schum. — V. H. XXIII, 27. 



Ks. 15, 20. - Rare. 



Var. rotundata A. Cl. n. var. 



This variety is distingnished from the var. Sagitta by 

 the apex being rounded instead of cnneate. 



Kv. 32. — Rare. 



G. gracile Ehb. — Cl. 1. c. p. 182. 



Var. uaviculacea W. Sm. — V. H. XXIV, 13. 

 Kv. 1. — Rare. 



Var. dicliotomum W. Sm. — V. H. XXIV, 19, 20. 

 Ks. 15, S.-K. 7, Kv. 32, Km. 30. — Not rare. 



