FRESH-WATER DIATOMS FROM ICELAND 45 



Var. panduriformis W. Sm. W. Sm. Syn. I, 33. V. H. Syn., Tab. 

 LXXIII, fig. 11. 



11 samples (S. 4, S.W. 2, E. 5). 

 Area: Eur. 



Surirella robusta Ehr. V. H. Trt. 371, Tab. XII, fig. 577. A. S. Atl., 

 Tab. XXIII, fig. 3 (Sur. rob. valida). 

 Laugarvatn (S.. two samples) B. P. 

 Area: Eur. 



Var. splendida Ktz. V. H. Trt. 1. c, Tab. c, fig. 578. 



Apavatn S.) B. P. 

 Area: Eur., Af., Am. 



Surirella turgida W. Sm. V. H. Trt. 372, Tab. XXXI, fig. 867. 

 Thingvallavatn (SAV.) C. H. O. 

 Area: Eur. 



Stenopterobia Bréb. in litteris. Hust. Sur., 114. 



Stenopterobia intermedia Lewis. Hust. Sud., 115. Lew. interm. F., 

 Tab. 1, lig. 2 (Surirella interm.). 

 Reykjavik S.W.) H. .Is. 

 Area: Eur., Af., Am., Grl. 



Campylodiscus Ehr. 1841. V. H. Tit., 375. 



*Campylodiscus hibernicus Ehr. var. noricus Ehr. V. H. Trt. 379, 

 Tab. XIV, fig. 594. 



6 samples (S. 1, S.W. 2, N. 2, E. 1). 



Area: Eur., B. E. 



On tab. nost. IV, fig. 67, I have given a delineation of a fragment of a 

 Campylodiscus, which I have not been able to refer to any species 

 known by me. It was found in a "small waterhole near Geitabeig". 



Cymatopleura W. Sm. 1851. V. H. Trt., 366. 



! Cymatopleura elliptica (Bréb.) W. Sm. V. H. Trt. 367, Tab. XII, 

 flg. 480 b. 



10 samples (S. 1, S.W. 4, N. 2, E. 3). 

 Area: Eur., Af, As., Am. 



*Cymatopleura Solea (Bréb.) W. Sm. V. H. Tri. 367, Tab. XII, 

 fig. 482 b. 



52 samples (S. 20. S.W. 11. X. 1. E. 17). Hot springs: 2. 

 Area: Eur.. Af. As.. Am., B. E. 



