FRESH-WATER DIATOMS FROM ICELAND 45 



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

 LXXIII, fig. 11. 



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

 Area: Kur. 



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

 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 (S.W.) C. H. O. 

 Area: Eur. 



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



* 



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

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



Reykjavik (SAY.) H. Js. 

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



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



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

 Tab. XIV, fig. 594. 



6 samples (S. 1, SAY. 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 Geitaberg". 



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



:|: Cymatopleura elliptica (Breb.) W. Sm. V. H. Trt. 367, Tab. XII, 

 fig. 480 b. 



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

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



*Cymatopleura Solea (Breb.) W. Sm. V. H. Trt. 367, Tab. XII, 

 fig. 482 b. 



52 samples (S. 20, SAY. 11, N. 4, E. 17). Hot springs: 2. 

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



