KONGI-. SV. VKT. AKADEMIUNS UANDLINGAU. liAND 27. N:() 3. 61 



Mariiie: Oalifornia, fossil (Monterey, Sita Monica, S:ta Maria, S:n Redorido)! Bolivia Guano! 



Intermediate forms to tyjjical Var. cxcavata occiir in the California earth. 



Var. htmyarku Pant. (1X89). — \j. 0, 114; B. 0,o(i mm. 8tri;i! 22, piincta 20 in (),iji mm. 

 Area with a few scattered döts. — N. Oswaldi Pant. II p. .52 Pl. XXV f. 870. 



Marine: Hungary, fos.sil (Pant.). 



Var. cxcavata (tREV. (IXfitt). — Ij. 0,(i76 to 0,i4; B. O,oc,,'i to 0,07 mm. Areas as in var. 

 Anyelorum, but with numerous, scattered döts. Strise 14 to K!; puncta 12 to 14 in 0,01 ram. — 

 N. cxcavata Grev. T. M. S. XIV p. 130 Pl. XII f. 15. Nav. O.yimM Ja.msch Gaz. Exp. XV f. 12. 



Marine: Red Sea (Urev.), Madagascar! S:ta Monica, Calif., fo.ssil! Hungary, fossil! 



23. N. iuisti'iilk*a A. »S. (1874). — V. eliiptical. L. 0,1145; B. 0,022 mm. Lateral areas 

 linear, witli sliglitly coiicave exteriör margins, tapering towards the ends, abbreviate. Stritb 11 

 in 0,01 mm. Puncta? — Atl. II f. '67. f. 12? 



Marine: S:t Vincent (Austr.). 



This species, unknown to the author, appear.s to Ijo a small variety of A. ■'^ijcctahilis or a 

 form of N. Lyra var. atlantica. 



24. N. geiiifera A. S. (1874). — V. lanceolate. L. O, o to O.n;; B. 0,i)r, to 0,(10 mm. i^a- 

 teral areas narrow, constricted in the middle, slightly convergent. Marginal strite !) and their 

 puncta 9 in 0,0 1 mm., the lattei' formiiig longitudinal rows. Axial stria; 1) in 0, 01 mm. comp(jsed 

 of about 3 puncta. Puncta of the stria; are conflueiit elose to the sinuses of the areas. — Atl. II f. ('>. 



Marine: Oolou (Deby Coll.)! Puerto CabaJlo (Atl.). 



25. N. altriiptii Grecj. (1857). ~ V. eliiptical. L. 0,or,r> to O.onr, ; |-*>. 0,022 to 0,o:j4 mm. 

 Axial areas distinct, narrowed towards the central nodulc and tlic ends. Lateral areas narrow, 

 short, constricted in the middle and witli convergent interiör margins. Htria; 10 in 0,oi mm., 

 finely punctate; puncta about 23 in 0,01 mm. or indistinct. — N. Lyra rar. abrupta Grbg. D. of 

 Clyde p. 48fi Pl. IX f. 14, 14 h. N. alimpta Do.nk. B. I), j). 13 Pl. Il f. (!. A. S. N. S. D. I 

 f. 37. Atl. III f. 1, 2. V. H. Syn. p. 94 Pl. X f. 4. 



Marine: Spitsbeigen ! Finmark! North >Sea! Mediterranean Sea! Adriatic! Black Sea! IJed 

 Sea! Labuan! China! Fossil: Hungary (Pant.). 



N. aljnipta seems to be a distinct species, not closely connected with the others, distinguished 

 by its axial area and the fine punctation of the strias. 



26. N. cliivata Greo. (185S). — V. eliiptical, with rostrate ends. L. 0,ii4 to O.ou; P>. 0,022 

 to O, Of) 5 mm. Lateral areas nsually bi'oad and semilanceolate with divergent ends. Marginal 

 striaj 10 to 14, axial stria; 14 to 1(5, puncta Ki to 20 in 0,oi mm. — T. M. S. IV p. 4() Pl. V f. 17. 

 DoNK. B. D. p. 15 Pl. Il f. 8. A. S. N. S. L. I f. 33. Atl. LXX f. 50. N. Wriyhti 0'Meara 

 M. J. VII p. lU; Pl, V f 4 (1«(;7). N. Unincdyi var. clavafa V. H. Syn. ji. 93. A'. Lyra var. 

 A. S. Atl. LXX f. 47. 



Marine: North Sea! Mediterranean Sea! Red Sea! Seychelles! Madagascar! OeyJon! Sumatra! 

 Singapore! C'hina! Japan! Samoa! Galapagos Islands! West Indies! Florida! Delaware! Connecticut! 



Var. carihrea A. S. (1874). — Lateral areas contracted in the middle. Ij. O, ii; B. 0,044 

 mm. Striai II, puncta 13 in 0,oi mm. — N. carihma A. S. N. S. D. I f. 40. Atl. II f. 17; LXX f. 48. 



Marine: North Sea (A. S.), Jamaica (Atl.), Mediterranean Sea (Peragallo). 



Forma minor Cl. — L. 0,o(;,'i; B. T), 028 mm. Stria; 13 in 0, 01 mm. Puncta indistinct. 



Marine: Colon (Deby Coll.). 



Theae varieties connect N. clarata with N. .spectahilis. 



Var. cx.sul A. S. (1874). — V. con.stricted in the middle. L. 0, 044 to 0,008; B. 0,021 to 0,0:? 8 

 mm. Lateral areas broad, .sometimes dotted. Marginal stria; 11 to 14, puncta 17 to 20 in 0, 01 

 mm. Axial .strise 12 to 18 in 0, 01 mm. — N. cxsul A- S. Atl. II f. 13. 



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