i 



— 135 — 



N» (Talon.) Powelli var. Vido?ichi Grun. Grun. Wien. Akad. 1863, 

 tab. XIII, fig. 4. 



Solitary in a sample without habitat. 

 Area: S. America, Adriatic, Sumatra. 



var. Bartholome! Cl. A. S. Atl. tab. CLX, fig. 9. 



Found only in a sample from KKt. 

 Area: West Indies. Porto Seguro, Bahia. 



117. N. (Calon.) siainensis Östr. n. sp. Tab. nostr. I. fig. 11. 



L. 0,04 mm., B. 0,016 mm. Striæ 7,4 in 0,01 mm. 



Linear elliptic with cuneate apices. Apical area broad, not 

 dilated in the middle. Striæ divided in two nearly equal parts by 

 a hyaline line parallel to the margin. 



Only found in a sample from KKt. 



This species surely is near to the form from Gampeachy Bay figured 

 in A. S. Atlas tab. CCXII, fig. 16 (from Gampeachy Bay) which is referred 

 by Cleve to Nav. (Calon.) sectilis A. S. 



In tab. nostr. II, fig. 19 I have figured a fragment of a form, which 

 certainly must also be referred to the form circle of Nav. (Calon.) Powelli. 

 L. 0,09 mm, b. 0,024 mm, striæ 7,4 in 0,01mm. on the middle somewhat 

 shortened and thus forming a central area in which two lunulæ are present. 



Found in a sample from KKt. 



118. N. (Calon.) disticha A. S. Tab. nostr. II, fig. 17. Cnfr. A. S. Atl. 

 ' tab. GGXII, fig. 13. 



L. 0,043 mm., b. 0,01 mm. Striæ 9—10 in 0,01 mm. not punctate. 



Solitary in a sample from KKt. 



Area: Zanzibar (Gründler in A. S. Atl.). 



This form is near to N. (Cal.) Manda A. S., about which Cleve says 

 (Syn. I, p. 62) that the striæ are „not distinctly punctate". As A. S. how- 

 ewer in the text of his Atlas tab. CGXII says about Nav. Manda, that lie 

 has always found his striæ punctate and just for that purpose separated 

 N. disticha from N. Manda, I thought it most correct to refer the present 

 form to N. disticha A. S. 



Radiosœ. 



119. N. crucifera Grun. var.? capitata Östr. Tab. nostr. II, fig. 18. 



L. 0,031 mm., b. 0,012 mm. Striæ 10 in 0,01 mm. finely trans- 

 versely lineated. 



Valve elliptical with almost parallel margins, rostrate-capitate. 

 Striæ in the middle slightly radiant, at the ends transversal, wanting 

 in the apices. Apical area narrow, in the middle extended to a 

 rhombical central area. 



KKt (2 samples). 



