80 

 Arthrodesnius. 



notochondrus III, 18. 

 octocornis II* 30; III, 16; V, 59; 

 VIII, 82. 



— v. impar III, 16. 



— v. inermis III, 18. 



— v. major V, 59. 

 ovalis III, 17 ; VI, 125. 

 pachycerus III, 18. 

 phimus IV, 184. 

 pseudincus III, 18. 

 psilosporus III, 17. 

 Ralfsii II, 514 (25). 

 spicatus IV, 184. 



subulatus 1*, 44» ; IH, '7; IV, 191; 

 VI, 125; Vili, 139. 



— v. gracilis HI, 17- 

 lenuissimus II* 29*, II, ,18 (29); 



IV, 191. 

 triangularis 1*, 4.10; III*, 182; II, 

 518 (291; III, 17; VI, 125. 



— v. americanus II, 519 (io). 



— f. Lagerheimii III* 182. 

 Wingulmarkiae 111, 17. 



Asteroxanthium (vide Staurastrum). 

 Bambusina. 



Brebissonii III, 15. 

 Calocylindrus (vide Cosmarium). 

 Closterium. 



abruptum V, 65; Vili, 84. 



— f. brevior VI, 122 



— v. cambricum V, 63. 



— f. punctata V, 66. 

 acerosum I, 390 (2); III, 19; VI, 



1 18, 128; Vili, 142 ; IX, 34, 42 



— f. attenuala IV, 1 1 4* 



— v. subangustum Ili* 185; VI, 

 1 1 2. 



— v. truncatum III*, 174. 

 acuminatum V, 48. 

 acutum III*, 173, 190. 



— f. tenuior IV, 188. 

 affine III, 19; V, 44- 

 angustatum IH, 15, 28; V, 48, 65. 



— v. clavatum Vili, 84. 



— v. subrecta III, 24. 

 angustum VI, 128. 



Closterium. 



— v. clavatum III, 21, 

 Archerianum IX, 34. 

 arcuatum IV, 188, 191 ; V, 48, 59. 

 areolatum f. glabra Vili, 7-. 



— simplicior Vili, 77, 

 attenuatum V, 48; VI, 112; Vili, 



142. 

 australe VI, 117. 



Baileyanum v. annulatum III, s6. 

 Balmacarense V, 60, 64. 



— v. minor V, 60 64, 

 Braunii I, 398 (10) 

 calosporum IH*, 168; II, 505 (16); 



V, 48. 

 Ceratium V, 48. 59. 

 compactum III, 19, 

 Cornu Vili, 83, 86. 

 costatum IV, 115. 

 crassestriatum IV, 115. 

 Cynthia II. 505 (16); VI, 112; Vili, 



84; IX. 59- 



— v. subtilis IX, 59. 

 Delpontei II, 505 (16). 



— f. glabra Vili, 82. 



Dianae I* 438. 441, 447; IV, 191; 

 V, 48; Vili, 82. 



— v. minor IX. 36. 

 didymotocum III* 187; II, 490 (1); 



IV, 191; V, 48; Vili, 75- 



— v. maior IX, 36. 

 directum V, 48. 



Ehrenbergii I, 390 (2); III. 21, 23; 



IV. 188; V, 46, 47; VI, 112; 

 VIII, 89, 140, 142. 



— v. Malin\ ernianum III, 23. 



— v. podolicum Vili, 77. 

 Ensis Vili, 82. 



fractum IV, 191. 



giganteum 1*, 446. 



gracile II*, 24; III* 173; HI, 'S; 



V, 47, 48, 59; Vili, 74, 82. 



— f. gracillima II, 507 (18). 

 Hirudo IV, 191. 

 intermedium V, 59. 



— v. hibernicum Vi, 119. 



— v, sculptum f. eboracense V, 63. 



