462 OLEVE, DIATOMS. 



mens 8 in 0,oi mm., but vary more dense. In a small speci- 

 men var. minor CI. from Pitlekaj Cape Deschnew (East Cape) I 

 counted 14 striae in 0,oi mm. 



A. angusta Greg. var. arctica Grun. (A. Diat. pag. 24, PI. I, 

 fig. 29) Spitsb., Kara. 



A. Proteus Greg. (Diat. of CI. pag. 518, PI. XIII, fig. 81) 

 Green]., Bessel's Bay, Mushroom Point, Spitsb., Finm., Kara. 



var. Jcariana Grun. (A. Diat. pag. 24, PI. I, fig. 7) Kara, 

 Cape Deschnew (East Cape), Greenland. 



A. robusta Greg. (D. of CI. pag. 516, PI. XIII, fig. 79) Spitsb. 



var.? A. Schm. Atl. PI. XXVII, fig. 44 — Greenl., Spitsb., 

 Cape Deschnew (East Cape). 



A. Erebi Ebb. (A. cymbifera Greg. Diat. of CI. pag. 526, PI. 

 XIV, fig. 97, A. Schm. Atl. PI. XXV, fig. 17; 18, 19, 33, 36, PI. 

 XXVI, fig. 33, A. Leighsmithiana O'M.?) Striae costate. — Greenl. 

 Mushroom Point, Spitsb., Finm., Kara, Cape Deschnew (East 

 Cape). 



A. cymbifera (Greg.?) CI. (A. Schm. Atl. PI. XXV, fig. 35) 

 Striae composed of distinct puncta. — Greenl., Spitsb. 



One specimen from Greenl. measures in length 0,i2 mm. 

 and has 7 striae in 0,oi mm. 



A. spectabilis (Greg.?) A. Schm. (Atl. PL XL, fig. 20—23. 

 A. furcata Leuduger Fortmorel) Davis Strait. 



A. Grevilleana Greg. Finm. 



A. fasciata Greg. (Tr. M. S. V. PI. I, fig. 36, D. of CI. PL 

 XIII, fig. 91) Finm. 



A. complexa Greg. (D. of CI. fig. 90) Spitsb., Brandewijne 

 Bay. — Striae composed of distinct puncta 12 V2 in 0,oi mm. 

 on the valve, 17 in 0,oi mm. on the connecting membrane. 



A. Arms Greg. (T. M. Soc. V. pag. 75, PI. I, fig. 37) Spits- 

 bergen, Hinlopen Strait. 



A. Eunotia CI. (D. of the A. S. pag. 21, PL III, fig. 17) Greenl., 

 Finm., Spitsb., Kara. 



Specimens from Spitsbergen have 7 V2 striae in 0,oi mm. 

 on the valve and 11 in the connecting membrane. 



A. crassa Greg. (D. of CI. pag. 524,- PL XIV, fig. 94) Greenl., 

 Spitsb., Finm., Kara, Cape Deschnew (East Cape). 



A. subinflata Grun. (A. S. Atl. PL XXVI, fig. 49) Finm. 



A. plicata Greg. (T. M. S. V. pag. 70, PL I, fig. 31) Spitsb. 



A. (baltica Grun. var.?) arctica Grun. (CI. & M. Diat. No 

 172) Davis Strait. Not known to me. 



