102 LINDSAY, ON THE PROTOPHYTA OF NEW ZEALAND. 
Genus 18. Melosira. 
47. subflexilis, Kitz. 
Occurs also in France (Smith) and throughout Europe 
(Rabenhorst). 
48. varians, Ag. 
49. orichalcea, Mert. 
Genus 19. Actinoptychus. 
Dr. Greville remarks,* “ Smith made a blunder, and Ralfs 
(in Pritchard’s ‘ Infusoria’) restored the name.” 
50. undulatus, Kiitz. 
Occurs in America (in guano, &c.); not British (Prit- 
chard). 
Genus 20. Cocconeis. 
51. Pediculus, Ehrb. 
92. Placentula, Ehrb, 
21. Achnanthidium. 
53. lanceolatum, Bréb. 
Occurs also in France (at 3000 feet in Auvergne) (Smith), 
and in most parts of Europe (Rabenhorst). 
54. lineare, Sm. 
95. coarctatum, Bréb. 
This and the preceding occur also in France (Smith): the 
latter in many parts of Europe (Rabenhorst). 
56. trinode, Arn. 
Genus 22. Achnanthes. 
57. exilis, Kiitz. 
Occurs also in France (Smith) and throughout Europe 
(Rabenhorst). 
Genus 23. Cymbella. 
58. cuspidata, Kitz. 
Occurs also in Nova Scotia (Smith). 
59. obtusiuscula, Kiitz. 
Occurs in Europe, but is not British (Pritchard). 
60. Helvetica, Kitz. 
61. Lindsayana, Grev. 
“Descriptions of new species of Diatoms from the South 
Pacific,” ‘ Trans. Botan. Society of Edin.,’ vol. viii, p. 234; 
plate 3, figs. 5—8. 
“* Valves lanceolate ; slightly contracted beneath the obtuse 
apices ; often with nearly equal sides. . . . . A beautiful 
33 
* Letter, February 17th, 1866. 
