KONGL. SV. VET. AKADEMIKNS IIANDLINGAR. BAND 26. N:() 2. 63 



5(i. C. Wittii CtRIIn. (1S81). — V. linear, slightly oonstrictftd in the middle, with suheuneate 

 ends. \j. 0,073; B. 0,014 mm. Axial and central areas indistinct. Striic 8 in 0,oi mm., smooth, 

 subparallel. Longitudinal lines broad, submarginal. — Nav. Wiflii Ghun. in (Jl. N. R. D. p. 11 

 PI. Ill f. ai. 



Marine: Brazil (Gniii.). 



57. €. Z<aiiar(liniaiia Grun. (1860). — V. linear, with slightly concave margins and suh- 

 euneate ends. L. 0,ir.8; B. 0,019 mm. Axial area narrow, slightly dilated around the central 

 nodule. StricC 5 in 0,oi mm. Longitudinal lines broad, median. — Nav. Zanard. GtRUN. Verb. 

 18fiO p. 525 PL III f. 12. 



Marine: Adriatic (Grun.). 



58. C. Campbellii Petit (1877). — V. with parallel or slightly concave margins and cuneate 

 ends. L. 0,o.58 to 0,o8i; B. 0,oi9 to 0,022 mm. Axial area indistinct. Central area a subquadrate 

 space witli fragments of stria". Strite 8 in (),oi mm. smooth, parallel. Longitudinal lines marginal. 



— Nav. Camph. Pet. D. de Campb. p. 22 PI. V f. 23. 



Marine: Island of Campbell! 



An examination of original specimens has convinced me that this species is nearly akin to 

 C. Foivellii. 



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

 to the ends. L. 0,oa5 to 0,074; B. 0,oi7o mm. Axial area narrow. Central area a quadrate space. 

 Median line with approximate central pores. Stria; 7 in 0,oi mm., smooth, slightly radiate through- 

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

 Nav. hiseriafa Petit D. de Cainpb. p. 23 PI. IV f. 15. 



Marine: New Zealand! 



60. €. Powellii Lewis (1861). — V. linear, with parallel margins and cuneate ends. L. 0,o5 

 to 0,i.s; B. 0,0 15 to 0,03 mm. Axial area indistinct or narrow. Central ai'ea quadrate. Strise 



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



Var. atlantica Cl. — L. 0,0.') to 0,i mm. Stria; 10 to 11 in 0,oi mm. — Nav. Powellii 

 Lewis Proced. Ac. nat. sc. Philad. p. 65 PI. II f. 6. Nav. sectilis var. Boryana Pant. II p. 53 

 PI. VIII f. 152 (1889). 



Marine: Quincy, Mass! Long Island Sound! Hungary fossil (Pant). 



Var. galapagensis Cl. (1881). — L. 0,o5 to 0,09; B. 0,oi:3 to 0,02 mm. Stinse 8 to 9 in 0,oi 

 mm. — Nav. Pow, var. galapag. Cl. N. P. D. p. 11 PI. Ill f. 30. 



Marine: West Indies! Galapagos Islands! 



Var. Vidovichi Grun. (1863). — V. 0,i to 0,i.5 mm. StriEe 6 to 7 in 0,oi mm. — Nav. 

 Vidovichi Grun. Verb. 1863 p. 150 PI. XIII f. 4. 



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



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

 to 0,13; B. 0,0 2 mm. Axial area distinct. Central area irregularly quadrate. Stria 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 PI. XII f. 16—17. Perag. D. de Villefr. p. 53 

 PI. II f. 9. 



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



Var. BartJwlomei Cl. (1878). — V. panduriform. L. 0,055 to 0,07; B. 0,oia or 0,oi7 (max.) 

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



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



— Nav. Barfholomei Cl. W. Ind. I), p. 6 PI. I f. 5. A. S. Atl. CLX f. 9. 



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



