KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 26. N:0 2. 63 



56. C. Wittii Grun. (1881). — V. linear, slightly constricterl in the middle, with subciineate 

 ends. L. 0,o7 3; B. 0,oi4 mm. Axial and central area.s indistinft. Stri* 8 in 0,01 mm., smooth, 

 subparallel. Longitudinal lines broad, .'sub margin al. — Å^nv. Wiflii GrRiiN. in Cl. N. R. D. p. 11 

 Pl. III f. 81. 



Marine: Brazil (Grnn.). 



57. C. Zauardiniaiia Grun. (1860). — V. linear, with slightly concave margins and sub- 

 cuneate ends. L. O, les; B. 0,019 mm. Axial area narrow, slightly dilated around the central 

 nodule. Strifie 5 in 0,0 1 mm. Longitndinal lines broad, median. — Nav. Zanard. Grun. Verb. 

 1860 p. 525 Pl. III f. 12. 



Marine: Ådriatic (Grun.). 



58. G. (Jampbellii Petit (1877). — V. with parallel or slightly concave margins and euneate 

 ends. L. O, oss to 0,o8i; B. 0,oi9 to 0,022 mm. Axial area indistinct. Central area a subquadrate 

 space with fragments of stricB. Strite 8 in O.oi mm. smooth, parallel. Longitudinal line.s marginal. 



— Nav. Camplj. Pet. D. de Campb. p. 22 Pl. V f. 23. 



Marine: Island of Campbell! 



An examination of original specimens bas oonvinced me that this species is nearly akin to 

 C. Fotvdlii. 



59. C. biseriata Petit (1877). — V. convex, lanceolate, gradnally tapering from the middle 

 to the ends. L. 0,o5.t to 0,074; B. 0,oi76 mm. Axial area narrow. Central area a quadrate space. 

 Median line with approximate central pores. Strite 7 in 0, 01 mm., smooth, slightly radiate through- 

 out. Longitndinal lines broad, on one side of the median line uniting with the central area. — 

 Nav. biseriata Petit I), de Campb. p. 23 Pl. IV f. 15. 



Marine: New Zealand! 



60. C. Powellii Lewls (1861). — V. linear, with parallel margins and euneate ends. L. 0,05 

 to 0,13; B. 0,015 to 0,03 mm. Axial area indistinct or narrow. Central area quadrate. Stritt; 



7 to 11 in 0,01 mm., parallel, smooth. Longitndinal lines broad, uniting with the central area. 



Var. atlantica Cl. — L. 0,o.'i to 0, 1 mm. Strise 10 to 11 in 0, 01 mm. — Nav. FoiveUii 

 Lewis Proced. Ac. nat. se. Philad. p. 65 Pl. Il f. 6. Nav. sectilis var. Boryana Pant. II p. 53 

 Pl. VIII f. 152 (1889). 



Marine: Quincy, Mäss! Long Island Sonnd! Hnngary fossil (Pant). 



Var. galapagensis Cl. (1881). — L. 0,or, to 0,09; B. 0,oi3 to 0,02 mm. Strite 8 to 9 in 0,oi 

 mm. — Nav. Pow, var. galapag. Cl. N. E,. D. p. 11 Pl. III f. 30. 



Marine: West Indies! Galapagos Islands! 



Var. Vidovichi Grun. (1863). — V. 0,i to 0,15 mm. Strise 6 to 7 in 0, 01 mm. — Nav. 

 Vidovichi Grun. Verh. 1863 p. 150 Pl. XIII f. 4. 



Marine: Ådriatic (Grun.), Sumatra (Deby Coll.)! S. America (Deby Coll.)! 



Var. egyptiaca Grev. (1866). — V. elongated, slightly constricted in the middle. L. 0, 11 

 to 0,13; B. 0,02 mm. Axial area distinct. Central area irregularly quadrate. Strise. 6 in 0,oi 

 mm. smooth, transverse. Longitudinal lines broad, united, or nearly so, with the central area. 



— Nav. egyptiaca Grev. T. M. S. XIV p. 127 Pl. XII f. 16—17. Per.\g. D. de Villefr. p. 53 

 Pl. II f. 9. 



Marine: Ådriatic! Alexandria (Deby Coll.), Sumatra! 



Var. Bartholomei Cl. (1878). — V. panduriform. L. 0,o.'j5 to 0,07; B. 0,oi5 or 0,oi7 (max.) 

 to 0,01 (min.) in 0, 01 mm. Axial area distinct, but narrow. Central area quadrate. Strife 7 to 



8 in 0,0 1 mm. smooth, parallel. Longitudinal lines broad, marginal, united with the central ai'ea. 



— Nav. Bartholomei Cl. W. Ind. D. p. 6 Pl. I f. 5. A. S. Atl. CLX f. 9. 



Marine: West Indies! Porto Seguro (Deby Coll.)! Bahia (Deby Coll.)! 



