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476

(1882-87) [MARC] Author: Adolf Erik Nordenskiöld
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P. rhomboides Cl. (A. D. pag. 14, Pl. IV, fig. 73) Kara,
Cape Wankarema, F. J. L.

var. angustior Grun. — F. J. L.

P. Stuxbergii Cl. & Grun. (A. Diat. pag. 54, Pl. IV, fig. 74)

F. J. L., Kara, Cape Wankarema.

var.? liyperborea Grun. (transv. striae 22 1 > oblique 25^2
in 03oi mm.)

P. distortum W. Sm. (S}rn. I, pag. G7, Pl. XX, fig. 210)
Spitsb. (longit. striae 28, transverse 25 in 0,oi mm.).

Greenl., Finm., Spitsb., Kara.

var. sulcata Grun. (A. Diat. pag. 55, Pl. IV, fig. 75) Spitsb.,
Kara.

var. tenuirostris Grun. (A. Diat. pag. 55, Pl. IV, fig. 76)
Kara.

P balticum W. Sm. (Syn. I, pag. 66, Pl. XXII, fig. 207)
Spitsb.

P Wansbeckii Donk. (T. M. S. VI, pag. 24, Pl. III, fig. 7)
Kara.

P macrum W. Sm. (Syn. I, pag. 67, Pl. XXXI, fig. 276) Kara.

P prolongatum W. Sm. (Syn. I, pag. 67, Pl. XXII, fig. 212)
Spitsb., Kara.

P. tenuissinmm W. Sm. (Syn. I, pag. 67, Pl. XXII, fig. 213)
Spitsb., Kara.

var. subtilissima Grun. (A. Diat. pag. 58) Kara.

var. liyperborea Grun. (1. c.) Kara, Cape Wankarema.

P Spenceri var. borealis Grun. (A. Diat. pag. 60, Pl. IV, fig.
79) Kara.

Of P. Spenceri I found in a sample from Hackluyts, Spitsb.,
a variety with 19 transverse and 24 longitudinal striae, length
0,n, breadth 0,oi3 mm. In the Wankarema gatherings oceurs
another variety with 20 transverse and 26 longit. striae in
0,oi mm., length 0,o85 mm., breadth 0,oos mm.

P vitreum Cl. (A. D. pag. 15, Pl. IV, fig. 78) Kara, Cape
Wankarema (transverse striae 19, longit. 20 in 0,oi mm.).

P glaciale CL N. S. — Sigmoid, acute, med. line almost
straight. Longit. and transverse strise 28 in 0,oi mm. Length
0,i43. Breadth 0,oi9 mm. — PL 35, fig. 13. — Cape Wankarema.

P stauropliorum Grun. A. Diat. pag. 61) Greenl. (Davis
Strait).

Donkinia carinata (Donk.) Ralfs (Donkin T. M. S. VI, pag.
23, PL III, fig. 5) Greenl. (Davis strait, Length 0,i mm. Breadth
0,02 mm. Oblique striae 18 in 0,oi mm.) Finm.

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