KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 27. N:0 3. 147 



Var. Gilberti A. S. (1893). — V. elliptic-lanceolate, rostrate. L. 0,o3; B. 0,oi2 mm. Median 

 line straight. No axial and central areas. Loculi about 5 in 0,oi mm., forming a band along the 

 whole margin. Strise 12 in 0,oi mm. very slightly radiate, of some few elongated alveoli. — 

 Atl. CLXXXVIl f. 14, 15. 



Marine: Kings Mill Island (Atl.), Barcelona! 



6. M. rostellata G-run. (1877). — V. lanceolate, frequently slightly constricted in the middle, 

 with acnminate, rostrate ends. L. 0, 042 to 0,06; B. 0,02 mm. Loculi 3 in 0, 01 mm. with some- 

 what convex interiör margin, almost eqnal (terminal loculi somewhat larger than the others), 

 forming a marginal band reaching nearly to the ends of the val ve. Strias 14 in 0, 01 mm. slightly 

 radiate at the ends, composed of elongated alveoli, arranged in somewhat irregular, decussating 

 rows. — Grun. M. J. 1877 p. 174 Pl. CXCV f. 2. 



Marine: Honduras (Grun), Campeachy Bay! Florida! 



7. M. aiigulata Lewis (1860). — V. elliptical to lanceolate, rostrate. L. 0,o4 to 0,o8; 

 B. 0,025 to 0,029 mm. Median line straight. No areas. Loculi of unequal size, the median 

 largest, 3 in 0, 01 mm. forming a band reaching almost to the ends. Striae 12 in 0,oi mm.; puncta 

 arranged in decussating rows. — Lewis Proceed Ac. Nat. Se. Philadelphia 1861 p. 65 Pl. II f. 4. 

 A. S. Atl. CLXXXVn, 4 to 11. 31. tlmitiana Castr. Voyage Challenger p. 22 Pl. XXVI f. 11? 

 M. apiculata Grun. Verh. 1860 p. 577 Pl. VII f. 9 (non W. Sm.). 



Marine: Atlantic coasts of North America! Honduras (Atl.), Mediterranean, Adriatic, Black 

 and Red Seas! Australia (Atl.). 



Var. pusilla Grun. (1877). — L. 0,026; B. 0,oi4 mm. Loculi 4 to 5 in 0,oi mm. oblique 

 strite 14 to 16 in 0,oi mm. — WI. apicul. var. 2>us. Grun. M. J. 1877 p. 175 Pl. CXCV f. 3. 



Marine: Honduras (Grun.), Adriatic! 



8. M. Szontaghii Pant. (1890). — V. broadly linear, with cuneate ends. L. 0,083; B. 0,025 

 mm. Loculi about 2 in 0, 01 mm. confined to the middle of the margin, quadrate. Strise 11,5 in 

 0,01 mm. composed of coarse puncta, forming oblique rows. — Pant. II p. 41 Pl. XXIX f. 416. 

 A. S. Atl. CLXXXVn, 12. 



Marine: Hungary, fossil (Pant.). 



9. M. sulcata Cl. (1892). — V. lanceolate, acnminate, with slightly triundulate margins. 

 L. 0,08 to 0,085; B. 0,027 to 0, 028 mm. Central nodule small, transversely dilated. Loculi, about 

 3 in 0,01 mm., elongated, forming a narrow band along the whole margin. Strise 22 in 0, 01 mm. 

 parallel, convergent in the ends, finely punctate; puncta forming very fine, decussating stria;. 

 The strice are crossed, between the middle and the ends of the valve, by a linear furrow, parallel 

 to the median line and halfway between it and the margin. — Cl. Diatomiste I p. 162 Pl. XXIII 

 f. 13, 14. A. S. Atl. CLXXXVIl f. 51. 



Marine: Philippines (Grove ColL), Java! 



10. M. decussata Grun. (1892). — V lanceolate, acute. L. 0,o7 to 0,013; B. 0,022 to 0,027 

 mm. Loculi 9 in 0, 01 mm., equal, rectangular, forming a band along the whole margin. Strife 

 22 to 25 in 0, 01 mm. iinely punctate; puncta forming decussating lines. — Cl. Diatomiste I p. 162 

 Pl. XXIII f. 17. A. S. Atl. CLXXXVI, 40, 41. 



Marine: Seychelles (V. H. CoU.)! Sandwich Islands! 



11. M. Kjellnianii Cl. (1883). — V. liuear-lanceolate, rostrate. L. 0,06; B. 0,oi4 mm. 

 Loculi 4 in 0, 01 mm. almost equal, with somewhat convex interiör margin, forming a narrow 

 band along the whole margin of the valve. Strise 22 in 0, 01 mm. finely punctate; puncta forming 

 oblique rows. — Vega p. 495 Pl. XXXV f. 6. 



Marine: Labuan! 



