fiO ]> 



Var. li-eint. Cl. — L. 0, 07 to 0,1 1; B. 0,115 to O, ok mm. Areas smooth. Marginal stripe 10 

 to lo and their pniicta 11 to Ki in 0,(ii nnn. Axial stritt; of 3 to 5 puncta. — N. Sandrinna 



A. S. Atl. 111 f. 10; LXX f. 45. Pant. I p. 2« Pl. IX f. 82. 



Maiiiie: North Sea (Bohuslän! Sölswig, Atl.), S:t Brienc (Atl.), Moroccol Balearic Islands! 

 Cannes! Red Sea (Deby Coll.)! Madagascar (Kinker Coll.)! Fossil, Hungary! 



22. N. spoctabilis G-reg. (18.57). — V. elliptical. L. 0,07 to 0,12; B. 0,o3 to 0,o6 mm. 

 Lateral areas broad, convergent, narrowed in the middle. Stria^ (i to 14, puncta 10 to 23 in 0,01 

 mm. — D. of Clyde p. 481 Pl. IX f. 10. A. S. Atl. III f. 20—21. Donk. B. D. p. 12 Pl. II f. 5. 

 A'. IJennedii Janisch Guano p. 28 Pl. II f. 13. N. milmdo Pant. III Pl. XXIII f. 334 (1893)? 



Marine: Greenland! North Sea! Morocco! Mediterranean Sea! Adriatic! Red Sea! Bab el 

 Mandeb! Ceylon! Java! Philippine.s! Japan! Cape Horn (Petit), Colon (Deby Coll.)! Fossil: Au- 

 gamos Guano (Jan.), Hungary (Pant.), S:ta Monica, Calif. ! 



N. spcefahili.s is extremely variable and comprises forms connecting N. Hennedyi and N. Lyra, 

 no absolute limit existing between these three species. 



Var. maxima Cl. — V. elliptical. L. 0,n; ; B. 0,u8 mm. Area.s linear. Stria; 5 in 0,oi mm. 

 Pnncta 7 in 0,oi mm. disposed in lojigitndinal rows. 



Marine: Macassar Straits ((irrove Coll.)! 



Var. Imlluta Cl. — L. O, n; B. 0,0 5 mm. Lateral areas with a row of large puncta. Stritc 

 10, puncta 17 in 0,01 mm. — N. hullata va.r. ohfusa Cåstr. Voy. Challenger p. 29 Pl. XXVIII f. 10. 



Marine: Singapore! 



Forma Möllcriana Jan. (1881). — V. subhexagonal to elliptic-lanceolate. Lateral areas 

 narrow, scarcely narrowed in the middle. L. 0, 1 to 0,13; B. 0,oft to 0,o.t3 mm. Stria' 7, puncta 10 

 in 0,01 mm. — N. bullata var. Möllcriana A. S. Atl. IjXX f. 51, 52. 



Marine: Australia (Atl.). 



Var. madagascarmsis Cl. — V. with subcuneate ends. L. 0,125 to 0,155; B. 0,o62 to O.obs 

 mm. Stria^. and puncta 13 in 0,01 mm.; the latter forming almost straight longitudinal rows. 



Mai'ine: Madagascar (Van Heurck Coll.)! Nossi-Bé (Tempére)! 



Var. coiitrorersa A. S. (1874). — L. 0,(iii; B. 0, 035 mm. Lateral areas in the middle linear, 

 dilated and tlien narrowed towards the margins. Stria'. 10, puncta 13 in 0, 01 mm. — A. Hennedyi 

 var. roiitroversa A. S. Atl. III f. 5. 



Marine: Campeachy Bay (Atl.). 



Var. ahhreriatn Cl. — V. with slightly constricted middle and broad, cuneate ends. L. O.osa; 



B. 0,03 mm. Area.s sliort not reaching to the ends of the valve. Striai 12 (axial and terminal 

 15), puncta 15 in O, o 1 mm. 



Marine: Madagascar! 



Var. Haitrayi Pant. (1889). V. elliptic-lanceolate. L. 0,11775; B. 0, 032 mm. Areas as in 

 var. abbreviata. Marginal stria; 10, terminal 15 in O.ui mm. finely punctate. — N. JiuttrayiVkWX:. 

 II p. 52 Pl. XXX f. 427. 



Marine: Hungary, fossil (Pant.). 



Var. cmar(ii)iaf(t. Cl. — V. elliptical. L. 0,07 to 0,ii; B. O.ua (o 0,042 mm. Areas broad, 

 notched in the middle. Stria; 12, puncta 18 iu O 01 mm. Central nodule sometimes transversely 

 dilated. — A. cirarata A. S. Atl. Til f. 22-25. Janisch Gazelle Exp. XV f. 22. 



Marine: Sierra Leone (Deliy Coll.)! Japan (Atl.), Campeachy Bay (Atl.), Nottingham, 

 Maryl. fossil (liae Coll.)! 



Var. Anyelormii Cl. (1881). — V. elliptical. L. 0,oh5 to 0,2; B. 0,047 to O.osi mm. Areas 

 broiul sinuate in tlie middle, attenuate towards tlie ends, smootli. Stri.v 7 to 15, puncta 14 to 

 1(1 in 0,01 mm. (Vntral nodule sometimes transversely dilated. — N. excarata rar. Anydurion 

 Cl. N. k.. I). ]i. .s i'l. il t 20. A'. Osindtli J.\nL'5CI1, N. r.irarata rar. nirsolria (^Ikun. in A. S. Atl. 

 LXX f. 4(i (1X81). 



