VEG A-EXPEDITIONENS VETENSKAPLIGA ARBETEN. 461 
The fig. previously published by myself is taken from 
balsam-mounted specimens and not sufficiently exact, 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. 
A. (langarica Grun. var.?) jamalinensis Grun. (A. Diat. 
pag. 20, Pl. I, fig. 4) Kara. 
A. (2) temiata Grun. (Aret. Diat. p. 22, Pl. I, fig. 5) Kara. 
var.? hyperborea Grun. F. J. L. 
ÅA. delicatula (Kg.) Grun. (Van Heurck Syn. Pl. XXVII, fig. 
3—4) Greenl., Bessel's Bay. 
4. Amphore2. 
Amphora levis Greg. (Grun. Arct. Diat. pag. 24, Pl. I, fig. 
8) Kara. 
A. levissima Greg. (D. of Cl. pag. 513, P1. XII, fig: 72) 
Kara, Finm. 
A. ostrearia Bréb. (A. Schm. Atl: Pl. XXVI, fig. 23) Finm. 
var. nova caledonmica Grun.? (A. Sehm. Atl. P1. XXVI, fig. 
24) Davis Strait. 
var. vitrea CI. (Öfvers. af K. Sv. V. Ak. Förh. 1868, pag. 
237, Pl. IV, fig. 5—6) Spitsb. — Length 0,085 mm. Br. 0,068 mm. 
Strige, composed of distinct puncta, 9 in 0,01 mm., on the con- 
nect. membrane 11 in 0,01 mm. 
ÅA. ocellata Donk. var. jamalinensis Ol. & Grun. (A. Diat. 
pag. 24, Pl. I, fig. 6) Kara. 
A. Weissflogii A. Schm. (Atl. Pl. 25, fig. 59) Davis Strait. 
Length 0,06 mm. Strie costate, 10 in 0,01 mm. 
A. acuta Greg. (D. of Clyde, pag. 524, P1. XIV, fig. 93 and 
93 b.) Greenl., Spitsb., Finm. 
A. hyalina Kätz. (A. Schm. Atl. P1. XXVTI, fig. 52—55) Spitsb. 
A. Uineolata Ehb. Kara (sec. Grun.) Small form with 20— 
21 strie in 0,01 mm. 
A. lineata Greg. (A. Schm. Atl. P1. XXVI, fig. 59, A. granu- 
lata Greg.?) Greenl., Bessel's Bay, Spitsb., Finm., Kara. 
A. tenera W. Sm. (Syn. I, pag. 20, P1. XXX, fig. 252)? Finm. 
A. coffeeformis Kätz. (A.S. Atl. Pl. XXVI, fig. 56—58) Kara. 
A. lanceolata Cl. (Öfvers. K. Sv. Vet. Ak. Förh. 1867, pag: 
667, P1. XXIII, fig. 2) Greenl., Finm., Spitsb., Kara. 
Valve acute, median line straight, strisxe costate, parallel 
"in the exterior, more or less radiant in the interior part of the 
valve not reaching the median line. Strie in typical speci- 
