800 



SYSTEMATIC HISTOEY OF THE IFFUSOSIA. 



smooth, naiTow-lanceolate, with acute 

 apices; front view strictly linear, wath 

 truncate ends. KB. p. 94, pi. 30. £ 56. 

 Marine. Eiu'ope. 



IS\ Meleagris (K.). — Somewhat tm'gid, 

 lanceolate-acuminate, with an elegantly 

 punctate margin. KB, p. 92, pi. SO. f. 37. 

 Marine. Em-ope. Front view broadly 

 linear. 



N. (jracilis (K). — Small, elongated, 

 slender-lanceolate, vnt\i subacute ends; 

 striae very fine, radiant, 22 in -001", 

 reaching \he median line. E. Infus. 

 p. 170; EM. many figures. Em'ope, Asia, 

 Afi-ica, America, Lough Moiu'ne deposit. 

 1-1500" to 1-5G0". 



N. oxyptera (K.). — Elongated, slender, 

 narrow-lanceolate, with acute apices, and 

 fine, slightly radiant, transverse striae. 

 KSA. p. 69. =^Piiuuilaria (unphioxys, EM. 

 manyfigm-es ; P. acuta, SB. i, p. 56, pi. 18. 

 f. 171. Em'ope, Asia, Australia, Africa, 

 America. 



N. Kefvingensis (E.). — Small, striated, 

 lanceolate, navicular; striie converging 

 at the centre, 17 in 1200". EB. 1840, 

 p. 20. = Pinmilaria Kefvingmsis, EM. 

 pi. 10. 2. f. 4, 5. Fossil. Bohemia, 

 Asia. 



N. peregrina (E,, K.). — Striated, nar- 

 row-lanceolate, gradually tapering to the 

 subacute apices ; pinnules oblique, reach- 

 ing the median line, 13 in -001". KB. 

 p. 97, pL 28. f. o2. = Pinnidaria jJeregriua, 

 EA. p. 133, several figm^es ; SI), i. p. 56, 

 pi. 18. f. 170. Marine. Em'ope, Asia, 

 Africa, America. 



N. leptostigma (E.). — Striated, lan- 

 ceolate, vv-ith subacute, slightly produced 

 apices; the ti-ansverse dotted striae in- 

 conspicuous. EB. 1845. = Finmdaria 

 leptostigma, EM. pi. 33. 12. f. 25. FossH. 

 United States. Twice as long as broad. 

 1-4:32". 



N. Ehrenhergii(K.). — Lanceolate, with 

 somewhat acute apices, and fine, radi- 

 ating stiia?. KB. p. 92, pi. 3. f. 38. = 

 Navicula lanceolata, E. Inf. pi. 13. f. 21. 

 Em'ope. 



N. ticglecta (K.). — Turgid, lanceolate, 

 with subacute apices, margins longitu- 

 dinallv costate and transverselv striated. 

 KB. p. 92, pi. 28. f. U.=PinnuIana lan- 

 ceolata, EA. pi. 3. 1. f. 6. Europe, Ame- 

 rica. Front view oblong, with incras- 

 sated middle and truncate ends. 1-1150" 

 to 1-280"; strict 13 in 1-1200". 



IvI. Scmproma (Perty). — Minute, 

 acutely lanceolate ; striae not reaching 

 the median line ; front view linear, 

 slightly narrowed towards the ends. 

 Perty, Microsc. Org. p. 204, pi. 17. f. 8. 



Alps. Belongs to the smaller species, 

 and is very like N. exilis. 



N. directa (S.). — Slender, naiTow- 

 lanceolate, acute ; costae fine, parallel, 

 reaching the median line, 20 in -00 1". 

 = Pinwdaria directa, SD. i. p. 56, pi. 18. 

 f. 172. Marine. Sussex. Front view 

 narrow-linear. 



N. pidchra (Greg.). — Broadly lanceo- 

 late or somewhat rhomboid ; striae radi- 

 ant, strongly moniliform, nearly reaching 

 the median line, shorter opposite the 

 slightly dilated indefinite nodides. TM. 

 iv. p. 42, pi. 5. f. 7. Marine. Scotland. 

 Rapidly tapering to the obtuse apices. 



N. longa (Greg.). — INIuch elongated, 

 lanceolate or slightly rhomboid, acute ; 

 costae conspicuous, about 12 in '001", 

 nearly reaching the median line, some- 

 what shorter and radiant opposite the 

 central nodule. =Pi}i?iulana longa, Greg. 

 TM. iv. p. 47, pi. 5. f. 18. Scotland. The 

 only known form to which it has any 

 resemblance is N. directa, but the latter 

 form is not rhombic, and the striae are 

 much more numerous and parallel. 



N. acutiuscula (Greg.). — Elongated, 

 slender, linear-lanceolate, acute; costao 

 distinct, about 30 in -001", reaching the 

 median line, central ones radiant and 

 more conspicuous. = Pw/«//a/7« acutias- 

 cula, TM. iv. p. 48, pi. 5. f. 21. Scotland. 



N. costata (K.). — Oblong-lanceolate, 

 Vk-ith obtuse apices, and longitudinal 

 pmictated lines; median nodule large, 

 terminal ones minute. KB. p. 93, pi. 3. 

 f. 56. Fossil. Santa Fiore. Front 

 ^dew oblong, with broadly rounded 

 apices. 



N. Norvegica (E., K.). — Broadly ob- 

 long, with acute apices, a narrow striated 

 border, and a smooth median space ; striae 

 30 in 1-1200". KA. p. 79. = Pin?mlaria 

 Norvegica, E. Marine. Europe. Front 

 view narrow-linear, truncate. 1-360''. 



N. Lihyca (E.). — Small, striated, 

 acutely oblong-lanceolate, with 14 striae 

 in 1-1200" ; front view quadrangidar, 

 T\dth truncate ends. EB. 1840, p. 20. 

 Sinai. 1-550". It has the habit of N. 

 fidva, but is wider, and not rostrate. 



N. Piqmla (K.). — Minute, smooth, 

 oblong-lanceolate, with slight produced 

 apices. KB. p. 93, pi. 30. £ 40. Europe, 



N. cdpina (S.). — Large, oblong-lan- 

 ceolate, with obtuse ends, and 7 to 9 

 stout, distant, radiant costae in '001", 

 which do not reach the median line.= 

 Pimndaria cdpina, SD. i. p, 55, pi. 18. 

 £ 168, France, Scotland. Front view 

 broadly linear, with truncate ends; costae 

 shorter near the central nodule. 



