KONGL. SV. VET. AKADEMIENS HANDLINGaR. BAND 27. N:0 3. 177 



10. C. antiqua Temp, and Brum (1889). — Elliptical. L. 0,o6 to O.os; B. 0,04 to 0,06 mm. 

 Upper V. with straight lanceolate axial area connected with the lateral areas, which form an 

 annular space at some distance from the margin. Striae 9 in 0,oi mm., coarsely punctate (puncta 

 () in 0,01 mm.) crossed by the lateral areas. Lower V. with straight median line ending at some 

 distance from the margin in small lunate terminal areas. Central area transverse. Striae 10 to 

 11 in 0,01 mm. distinctly punctate; puncta 15 in 0,oi mm. — D. foss. du Japon p. 32 PI VIII 

 f. 5. — A. S. Atl. CXCI, 49, 52. 



Marine: Japan, fossil (Brun Coll.)! 



Var. fossiUs Cl. — L. 0,05 to 0,085; B. 0,u35 to 0,058 mm. Upper V. with linear axial 

 area. Striae 10 and puncta 7 to 9 in 0,oi mm. — A. S. Atl. CXCI, 44 to 46. 



Marine: S:ta Monica Gal. and Oamaru, New Zealand, fossil! 



Nearly akin, if not identical, Cocc. Jimboi Pant. (Ill PI. II f. 24; 1893) appears to be. The 

 figure represents the lower valve. C. japonica Pant. (Ill PI. XLII f. 582; 1893) seems to be the 

 upper valve. 



11. C. Toluta Br. (1894). — Orbicular. Diam. 0,o8. Upper V. with lanceolate axial area 

 not reaching to the margin and with one or two lateral areas on each side of the axial area. Striae 

 10 to 11 in 0,01 mm. punctate; puncta 9 to 10 in 0,oi mm. Lower V. with slightly sigmoid 

 median line, small rounded terminal areas at some distance from the margin. Striae 12 in 0,oi 

 mm., radiate throughout, punctate; puncta 11 to 12 in 0,0 1 ram. — A. S. Atl. CXCVI f. 25, 20 

 (left figure Cocc. prohaia A. S.). 



Marine: California, S:ta Monica, fossil (Deby Coll.)! 



12. C. interrupta G-rdn. (1863). — Elliptical. L. 0,o32 to 0,062; B. 0,024 to 0,o4 mm. 

 Upper V. with short, narrow, axial area slightly widened in the middle, connected with the very 

 broad lateral areas. Striae 9 to 10 in 0,oi mm. at the margin and at the axial area, costate with 

 a median punctum. Lower V. with straight median line, ending at some diigtance from the margin 

 in small lunate terminal areas. Axial area indistinct. Central area transverse (and frequently 

 unilateral). Striae 9 in 0,oi mm. radiate and curved towards the ends, distinctly punctate. — 

 Verb. 1863 p. 144 PI. IV f. 14. V. H. Syn. PI. XXX f. 3, 4. A. S. Atl. CXCIV f. 17. C. Crux. 

 Pet. D. de Campbell PL IV f. 4? 



Marine: Kamtschatka! 



13. C. vitrea Brun (1891). — Elliptical. L. 0,o6 to 0,07; B. 0,o4 to 0,05 mm. Upper V. 

 with narrow lanceolate axial area, and narrow lunate lateral areas. Striae between the areas 10 

 in 0,01 mm., having a large median punctum. Marginal striae also with a median punctum. 

 Lower V. with straight median line, ending at some distance from the margin. Axial and termi- 

 nal areas indistinct. Central area irregularly rounded. Striae 18 in 0,oi mm. radiate, punctate; 

 puncta about 17 in 0,oi mm. - D. esp. nouv. p. 19 PI. XVIII f. 2. A. S. Atl. CXCIV f. 10, 11. 

 C. De Toniana Pant. Ill PL XXXIV f. 482 (1893). C. pseudomarginata A. S. Atl. CXCIV f. 8. 



Marine: Japan and Hungary, fossil (Brun). 



Var.? verrucosa Brun (1891), — L. 0,of, to 0,06; B. 0,035 to 0,o5 mm. Upper V. with 

 lanceolate axial area, and broad lunate lateral areas, marked with some large scattered dots. 

 Striae 15 in 0,oi mm. with a median punctum. Marginal striae short. Lower V.- with straight 

 median line, ending at some distance from the ends in pyriform terminal areas. Axial and central 

 areas indistinct. Striae 18 in 0,oi mm. radiate and curved at the ends, punctate; puncta 17 in 

 0,01 mm. — C. sp. Brun Temp. D. du Japon PL VIII f. 9. Cl verruc. Brun D. especes nouv. p. 18 

 PL XVIII f. 7. A. S. Atl. CXCIV f. 14. 



Marine: Japan, fossil (Brun Coll.)! Indian Ocean (Brun). 



K. Sv. Vet. Akad. Handl. Bnnd 27. N:o 3. 23 



