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The fig. previously published by myself is taken from
balsam-mounted specimens and not sufficiently exaet, for which
reason I have drawn a new sketch of the upper and lower
valves Pl. 35, fig. 3 a, lower valve, b, upper valve.
.4. (hnngarica Grun. var.?) jamalinensis Grun. (A. Diat.
pag. 20, Pl. I, fig. 4) Kara.
A. (?) tceniata Grun. (Aret. Diat. p. 22, Pl. I, fig. 5) Kara.
var. ? hyperborea Grun. F. J. L.
A. délicatida (Kg.) Grun. (Van Heurck Syn. Pl. XXVII, fig.
3—4) Greenl., BesseVs Bay.
4. Amphoreae.
Amphora laris Greg. (Grun. Aret. Diat. pag. 24, Pl. I, fig.
8) Kar a.
A. leevisswia Greg. (D. of Cl. pag. 513, Pl. XII, fig. 72)
Kara, Finm.
A. ostrearia Bréb. (A. Schm. Ati. Pl. XXVI, fig. 23) Finm.
var. nova caledonica Grun.? (A. Schm. Ati. Pl. XXVI, fig.
24) Da vis Strait.
var. vitrea Cl. (Öfvers. af K. Sv. V. Ak. Förh. 1868, pag.
237, Pl. IV, fig. 5—6) Spitsb. — Length 0,o85 mm. Br. 0,o68 mm.
Strise, composed of distinet puncta, 9 in 0,oi mm., on the
eon-nect. membrane 11 in 0,oi mm.
A. ocellata Donk. var. jamalinensis Cl. & Grun. (A. Diat.
pag. 24, Pl. I, fig. 6) Kara.
A. Weissflogii A. Schm. (Atl. Pl. 25, fig. 59) Davis Strait.
Length 0,og mm. Strise costate, 10 in 0,oi mm.
A. acuta Greg. (D. of Clyde, pag. 524, Pl. XIV, fig. 93 and
93 b.) Greenl., Spitsb., Finm.
A. hyalina Kiitz. (A. Schm. Atl. Pl. XXVI, fig. 52—55) Spitsb.
A. lineolata Ehb. Kara (sec. Grun.) Small form with 20—
21 strise in 0,oi mm.
A. lineata Greg. (A. Schm. Atl. Pl. XXVI, fig. 59, A.
grann-lata Greg.?) Greenl., Bessel\s Bay, Spitsb., Finm., Kara.
A. tenera W. Sm. (Syn. I, pag. 20, Pl. XXX, fig. 252)? Finm.
A. coffeceformis Kiitz. (A. S. Atl. Pl. XXVI, fig. 56—58) Kara.
A. lanceolata Cl. (Öfvers. K. Sv. Vet. Ak. Förh. 1867, pag.
667, Pl. XXIII, fig. 2) Greenl., Finm., Spitsb., Kara.
Valve acute, median line straight, strue costate, parallel
in the exterior, more or less radiant in the interior part of the
valve not reaching the median line. Strise in typical speci-
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