TRANSACTIONS AND PROCEEDINGS OF THE [ Sess. LXIX- 
. S. anatinum, Cooke and Wills. S.—Plankton of Neugles Water 
and of Loch Brindister. 
. S. proboscideum, Arch. [S. Borgeanwm, Schmidle.] O0.—W. of 
Kirkwall. S.—Lerwick. 
. S. asperum, Bréb. O.——W. of Kirkwall. 
. S. pileolatum, Bréb., var. Brasiliense (Borges.), Liittkem. S.—Ler- 
wick. 
. S. margaritaceum (Ehrenb.), Menegh. O.—Kirkwall; Ward Hill, 
Hoy (both 4- and 5-angular). $.—Lerwick. 
Genus SPHROZOSMA, Corda. 
241. S. excavatum, Ralfs. %.—Neugles Water. 
242. S. granulatum, Roy and Biss. S.—Plankton of Loch Asta, and of 
Loch Beosetter, Bressay. 
243. S. vertebratum, Ralfs. S.—Bressay, in a ditch. 
Var. punctulatum, W. and G. S. West. [S. punctulatum, West, 
in “Journ. Bot.,’ Dec. 1891, t. 315, f. 1 and 2.] S.—Near 
Scalloway. 
Genus SPONDYLOSIUM, Bréb. 
244, S, pulchellum, Arch. O.—Hoy. 
Genus HYALOTHECA, Ehrenb. 
245, H. dissiliens (Sm.), Bréb. O.—W. of Kirkwall; Stromness; Hoy. 
246. 
S.—Lerwick ; near Scalloway ; Bressay. 
Forma tridentula, Nordst. S,—Lerwick. 
Var. hians, Wolle. S.—Near Lerwick. 
H. mucosa (Dillw.), Ehrenb. S.—Plankton of Loch Beosetter, 
Bressay. 
Genus GyMNozyGA, Ehrenb. 
. G. moniliformis, Ehrenb, O.—Hoy. 
Order PROTOCOCCOIDEA. 
Family CH#TOPELTIDES. 
Genus CH2ZTOSPHAERIDIUM, Klebahn. 
248, Ch. globosum (Nordst.), Klebahn. S.—Neugles Water. 
Family VoLvocace&. 
Genus PANDORINA, Bory. 
249. P. morwm (Miill.), Bory. O.—Kirkwall. §.—Plankton:of Loch 
Asta. 
Genus EUDORINA, Ehrenb. 
250. E. elegans, Ehrenb. S.—Bressay. Plankton of Loch Asta. 
Family CHARACIE. 
Genus CHARACIUM, A. Br, 
251. Ch. Pringsheimzi, A. Br. O.—Kirkwall. S.—Lerwick. 
252. Ch. heteromorphum (Reinsch), W. and G. 8. West. S.—Scalloway. 
253. Ch. longipes, Rabenh. O.—Kirkwall. 
