Acta Societatis pro Fauna et Flora Fennica, 49, N:o 7. 17 



monstrous semicell of some known species. Long, semicell. 

 38, lat. 68, crass. 32, isthm. 15 fi, [N:o 1003]. 



Hab. Hirvensalo (SW), leg. Elfv. PI. 3 fig. 31—32. 



Eu. insigne Hass. Forma lobis lateralibus sellae- 

 formibus. Long. 144, lat. 64, isthm. 14 /i. — Compare also 

 Wo lie, Desm. U. S. pi. 26 f. 14; Hustedt, Tirol 1911 fig. 

 21; Borge, Beitr. Schwed. II f. 11; Dick, Desm. Siid- 

 bayern pi. 14 f. 9. [N:o 866]. 



Hab. Esbo (S)., leg. C. Cz. PL 3 fig. 35. 



Eu. didelta (Turp.) Ralfs. Forma angulis inferio- 

 ribus conspicue oblique truncatis. Long. 148, lat. 84, isthm. 

 19 (i. [N:o 1006]. 



Hab. Hirvensalo (SW), leg. Elfv. — PI. 3 fig. 36. 



Eu. securiformiceps Borge, Desm. Regnell exp. pi. 4 

 f. 29; Sao Paolo pi. 5 f. 1. Agrees very well with the 

 figures and description by Borge. The three small protuber- 

 ances at the base of the semicell are not seen in his figures, 

 but the vertical view (1. c. fig. 29 c!) shows that there must 

 be some slight protuberances. The Finnish form possesses 

 a little „nodule" (thickening of the cell-wall) at the upper 

 lateral lobes and the polar lobe. Long. 76, lat. 34, crass. 

 27, isthm. 10,5 (i. [N:o 1004]. 



Hab. Raikala near Imatra (SE), leg. Hj. Hjelt. PL 3 

 fig. 37—38. 



This species has been suggested by West to be nothing 

 but a form of E. ansatum. (Consult Journ. of Bot. vol. 50 

 page 86.) I cannot agree with him on this point, because 

 no form of that species possesses such a broadly dilated 

 convex apex ; even the side view is quite different. I there- 

 fore think Dr Borge was right in describing it as a new 

 species. 



Eu. aboense Elfv. Anteckn. Finska Desm. pi. 1 f. 2; 

 West, Mngr. II pi. 36 f. 5—6; Ducellier, Etude crit. 

 1914 page 49 f. 25 a — c, 26 (sub. nom. E. aboense var. no- 

 dulosum Due ell. et var. laeve Due ell.). 



The characteristic features on which Ducellier founded 

 his „var. nodulosum" are also constantly present in the 



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