4 ASTRID CLEVE, ON RECENT FRESHWATER DIATOMS. 



Abbreviations. Names. Nos. designating the samples. 



Gl. Geliivare 43, 47. 



Gl. D. Gellivare Dundret .... 44, 45. 



Jm. Jokkmokk 6, 31. 



Ke. Kerkevare, reg. alp. 750 m. 49. 



Kk. Kvikkjokk, Kaddepakte . 48. 



Km. Kamajokk 10, 30. 



Ks. Koskats 15, 20. 



Kv. Kvikkjokk 1, 9, 16, 26, 28, 32, 34. 



Ll. Lule Lappmark (no special 



locality given) 21. 



Na. Njammats 35. 



Nu. Njunnats 2,3,5,11,14,17,18,19,25,37,39,41. 



S.-K. Between Storbacken and 



Koskats 7, 22, 33. 



Tr. Tarajokk 38. 



Tj. Tjukkbakken 42. 



V. Voullerim 12. 



Vi. Virijaur reg. alp. 600 m. . 50. 



In the enumeration of the species I bave fonnd, 1 men- 

 tion the synonyms and drawings only which are necessary 

 to identify the diiFerent forms. As to the systematical clas- 

 sification, I have chiefly adopted for the navicnloid forms that 

 of P. T. Cleve in the Synopsis of the navicnloid Diatoms, 

 Stockholm 1894; and for the rest, with some slight altera- 

 tions, that of Van Heurck in the Synopsis des Diatomées de 

 Belgique, Anvers 1885. 



Abbreviations of works referred to in this list: 



A. S. — Atlas der Diatomacéenkunde von A. Schmidt, Åschersleben 1874. 



Cl. Fhil. — Cleve, The diatoms of Finland. Helsingfors 1890. 



Cl. Syn. Nav. — Cleve Svnopsis of the naviculoid diatoms Pt. I, Stock- 

 holm 1894. 



Cl. & Gr. A. D. — Cleve and Grunow, Beiträge zur Kenntniss der arcti- 

 schen Diatomeen. Stockholm 1880. 



Gr. Fr. X.. — Grunow, Die Diatomeen von Franz Josefs-Land. Wien 1884. 



Gr. Foss. o. — Z7. — Grunow, Beiträge zur Kenntniss der fossilen Diatomeen 

 Österreich — Ungarns, Wien 1882. 



Hér. Anv. — Héribaud, Diatomées d'Auvergne. 1893. 



Lagst. Spitsb. — Lagerstedt, Sötvattensdiatomacéer från Spetsbergen och 

 Beeren Eiland. Stockholm 1873. 



Lewis. — Lewis, On extreme and exceptional variations of Diatoms, in some 

 White Mountain Localities. Philadelphia 1865. 



V. H. — - Van Heurck, Synopsis des diatomées de Belgique. Anvers 1885. 



W. Sm. b. D. — W. Smith, A Synopsis of the British Diatomaceae, London 1853. 



It is my dnty here to acknowledge that in the more 

 difRcnlt questions which have oecurred dnring the carrying 

 ont of this work I have bad the advantage of the help and 

 advice of my fatber, Professor P. T. Cleve. 



