FROM NEW YOEK, NEW JEESEY, AND GEORGIA. 139 



N. MARGINATA, PeUfird (36). 



N. carinata pars, Leidy, pi. 24. figs. 6-8 (30). 



Not common, only a few indiviclnals being found in sphagnum at Lake- 

 hurst. Length 150 fju; breadth 115 /^ ; aperture 40 /i. 



N. MINOR, Penard (36). 

 ■ N. collaris pars, Leidy, pi. 22. figs. 11, 12, 16 (30). 

 Found in ISTew Jersey sphagnum. Length 80-90 /i. 



N. MiLiTARis, Penard (34). 



Syalosphenia tincta pars, Leidy, pi. 20. fig. 18 (30). 



Generally distributed but not abundant. Length 65-80 /i. 



N. PARVITLA, Cash (10). 



Found in dry sphagnum and moss. Length 74-84 jjl. 



N. TENELLA, Penard, 1893 (36). 



This species is found in sphagnum and occurred numerously in a sample 

 from New Jersey ; the size was above normal and approached that of 

 N. griseola, a species from which its greater compression serves to distin- 

 guish it. 



Length 68-84 fx. ; breadth 45-60 [x ; aperture 13-17 yu,; thickness 30-39 /x; 

 collar 20-28 fi in diameter. 



N. SCITTELLATA, sp. nOV. (PI. 12. figS. 11 & 12.) 

 Quadrula symmetrica pars, Leidy, pi. 24. fig. 25 (30). 



Test moderately large, hyaline^ pyriform, compressed ; composed of small 

 siliceous, rectangular plates arranged in irregular rows, while smaller 

 rectangular plates may be superimposed at the junctions of the larger plates ; 

 margin of aperture often irregular ; plasma and pseudopodia normal ; 

 nucleus small Avith several nucleoles. 



Length 120-135 /a; breadth 74-90 fi ; aperture 24-30 yu,: thickness 

 nearly two-thirds of the breadth. 



Habitat. Sphagnum and wet mosses. 



Distribution. New Jersey ; the Seychelles. 



The test of this species resembles, in its possession of small superimposed 

 plates, a form of iV. vitrcea which is found at Lakehurst and shown on PI. 12. 

 figs. 15-17; it also bears a great resemblance in structure to JS. tropica, 

 PI. 12. figs. 13 & 14. 



