VEGA-EXPEDITIONENS VETENSKAPLIGA ARBETEN. 475 
St. Gregorii Rolfs var. obtusiuscula Grun. (A. Diat. pag. 47, 
PIN fo: 64) Karar 
St. pellucida Cl. — Broadly oval, with rounded, obtuse ends, 
membranaceous. Central nodule dilated in a short stauros. 
Strie 20 in 0,01 mm., obsolete, punctate. Length 0,o5s. Breadth 
0,023 mm. — Cape Wankarema. — Pl. 35, fig. 10. 
St. pusilla Grun. — F. J. L. — Unknown to me. 
St. perpusilla Grun. — F. J. L. — Unknown to me. 
Scoliopleura tumida (Bréb.) Grun. (Nav. tumida Bréb. N. Jen- 
neri W. Sm.y Kara. | 
Pleurosigma formosum W. Sm. — Greenl. 
P. obscurum W. Sm. — Spitsb. 
P. longum C1. (D. of the A. S. pag. 19, P1. III, fig. 14, Grun. 
Arct. Diat. pag. 49, Pl. I, fig. 71) Greenl., Finm., Spitsb., Kara 
(Matotschkin). 
P. elongatum W. Sm. (Syn. I, pag. 64, P1. XX, fig. 199) Kara 
(Matotschkin). 
var. fallax Grun. (A. Diat. pag. 50, Pl. III, fig. 36) Greenl. 
(Davis Strait), Finm., Kara. 
P. delicatulum W. Sm. (Syn. pag. 64, P1. XXI, fig. 202) 
Finm., Spitsb., Kara. 
var. kariana Grun. (A. Diat. pag. 50, P1. III, fig. 69) Kara. 
P. latum-CI- (A+ Diat. pag. 14, P1. III fig. 68) Finm: 
P. affine Grun. (A. Diat. pag. 51. P. naviculacewm CM. D. 
of the A. 8. pag. 19) Greenl. (Davis Strait), Finm., Spitsb. 
P. angulatwm W. Sm. (Syn. I, pag. 65, P1. XXI, fig. 205) 
Greenl., Finm., Spitsb. 
P. strigosum W. Sm. (Syn. I, pag. 64, P1. XXI, fig. 203) 
Finm., Kara. 
P. cestuarii Bréb. (W. Sm. Syn. I, pag. 65, Pl. XXXI, fig. 
275) Finm. 
P. finmarchicum Cl. (= P. Normani Cl. A. D. pag. 14, Pl. 
III, fig. 67) Finm. 
P. Clever Grun: (A. Diat. pag.. 52, Pl. III, fig. 70) Kara. 
var. siberica Grun (in litt. ce. icone) Strie, oblique and 
transverse, 28 in 0,01 mm. Cape Wankarema. PI. 35, fig. 14. 
P. mubecula W. Sm. (Syn. I, pag. 64, P1. XXI, fig. 201) Finm. 
P. intermedium W. Sm. (Syn. I, pag. 64, Pl. XXI, fig. 200) 
Finm., Spitsb. 
var. subrecta Cl. (A. Diat. pag. 14, P1. III, fig. 72) Greenl., 
Finm., Spitsb. 
P. rigidam W. Sm. (Syn. I, pag. 64, P1. XX, fig. 198) Greenl., 
Spitsb. 
