KONGI>. SV. VKT. AKADEMIENS HANDLINGAH. HAND 27. N:(» 3. 61 



Marine: California, fossil (^VLonterey, S:ta Monica. S:ta Maria, S:n liedondo)! Bolivia (4iiano! 



Intermediate forms to typical Vnr. cxcnrafa occnr in the (!alifoi'nia eaj'th. 



Var. hmu/arlca Pant. (1S89). — L. O.iu; B. (),o(; mm. Stria- 22, ])iincta 20 in <),iii mm. 

 Area with a few scattered dots. — N. OswaJdi Pant. 11 ]). h2 PI. XXV f. ^570. 



Marine: Hnngary, fossil (Pant.). 



Var. excavafa Grev. (18G(i). — L. (),o7« to 0,i4; B. ((.ofi.--) to (>,ii7 mm. Areas as in var. 

 AmjdorHH), bnt with numerous, scattered dots. Strise 14 to K!; puncta 12 to 14 in O.oi mm. — 

 N. excavafa Gkev. T. M. S. XIV p. 130 PI. XII f. 15. Xav. OswaUli Jamsch Gaz. Exp. XV f. 12. 



Marine: Red Sea (Grev.), Madagascar! S:ta Monica, Calif., fossil! Hungary, fos.sil! 



2o. N. australica A. S. (1874). — V. elliptical. L. 0,(j4.^; B. 0,022 mm. Lateral areas 

 linear, with slightly concave exterior margins, tapering towards the ends, abbreviate. Stria; 1 1 

 in 0,01 mm. Puncta? — Atl. II f. 37. f. 12? 



Marine: S:t Vincent (Austr.). 



This species, unknown to the author, appears to be a small variety of N. .•ipvctahiUfi or a 

 form of N. Lyra var. atlantica. 



24. N. genifera A. S. (1874). — V. lanceolate. L. 0,13 to 0,it;; B. 0,05 to (),()•; mm. La- 

 teral areas narrow, constricted in the middle, slightly convergent. Marginal striiE 9 and their 

 puncta in 0,oi mm., the latter forming longitudinal rows. Axial stria^. 9 in 0,oi mm. composed 

 of about 3 puncta. Piincta of the strite are confluent close to the sinuses of the areas. - Atl. i\^ f. (J. 



Marine: Colon (Deby Coll.)! Puerto Caballo (Atl.). 



25. N. abrupta Greg. (1857). — V. elliptical. L. 0,u.=i5 to 0,u8.t; B. 0,022 to 0,o34 mm. 

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

 short, constricted in the middle and with convergent interior margins. Strife 10 in 0,oi mm., 

 finely punctate; puncta about 23 in 0,oi mm. or indistinct. — N. Lyra car. abrupta Greg. D. of 

 Clyde p. 486 PI. IX f. 14, 14 b. X. ahnipfa Donk. B. D. p. 13 PI. II f. 6. A. S. N. S. D. I 

 f. 37. Atl. Ill f. 1, 2. V. H. Syn. p. 94 PI. X f. 4. 



Marine: Spitsbergen! Finmark! Nortli Sea! Mediterranean Sea! Adriatic! Black Sea! Red 

 Sea! Labuan! China! Fossil: Hungarj' (Pant.). 



X. abrupta seems to be a distinct species, not closely connected with the others, distinguished 

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



2Q. N. clavata Greg. (1858). — V. elliptical, with rostrate ends. L. 0,o4 to O.o'i; B. 0,022 

 to 0,0.5.') mm. Lateral areas usually broad and semilanceolate with divergent ends. Marginal 

 stria^. 10 to 14, axial striai 14 to 16, puncta 16 to 20 in 0,oi mm. — T. M. S. IV p. 46 PI. V f. 17. 

 DoNK. B. i). p. 15 PI. II f. 8. A. S. N. S. D. 1 f. 33. Atl. LXX f. 50. N. Wrkjhti O'Meara 

 M. J. VII p. 116 PI. V f 4 (1867). N. Hennedyi var. clavata V. H. Syn. p. 93. N. Lyra var. 

 A. S. Atl. LXX f. 47. 



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

 Singapore! China! Japan! Samoa! Galapagos Islands! West Indies! Florida! Delaware! Connecticut! 



Var. raribrea A. S. (1874). — Lateral areas contracted in the middle. L. 0,ii; B. 0,o44 

 mm. Strife II, puncta 13 in 0,oi mm. — N. carihcea 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. 0,065; B. 0,028 mm. Strife 13 in 0,oi mm. Puncta indistinct. 



Marine: Colon (Deby Coll.). 



These varieties connect N. clavata with N. spectabilis. 



\&r. cxsul A. S. (1874). — V. constricted in the middle. Tj. 0,o44 to 0,o68; B. 0,o21 to 0,o3 8 

 mm. liateral areas broad, sometimes dotted. ^Marginal stria' 11 to 14, puncta 17 to 20 in 0,oi 

 mm. Axial strife 12 to IS in 0,oi mm. — N. exsul A. S. Atl. II f. 13. 



