70 Miscellaneous. 
Bosmina, a Cyclops, and a Diaptomus. From 50 metres he got two 
more Cladocera, Sida crystallina, Miull., and Daphnia hyalina, 
Leyd. Of the Rotatoria his two new species, Asplanchna helvetica 
and Anurca longispina, were pretty abundant. Of Protozoa a 
Ceratium and a new Dinobryon (D. cylindricum, which also occurs 
in the lake of Neuchatel) occurred. ‘The Copepoda and Daphnella 
brachyura were most numerous in individuals, while the Bosmina 
occurred rarely. Bythotrephes appeared to be absent. 
The pelagic flora consisted of numerous tufts of Anabena circinalis, 
Pleurococcus angulosus, Giallionelle, and Fragillarie, The Anabena 
bore numerous Vorticelle, which never occurred on the Pleurococcus, a 
condition also obseryed by Forel in the lake of Geneva and by the 
author in the lake of Zug. 
The bottom, at about 100 metres, between Petit Port and the 
Chateau de Bourdeau, furnished but few forms. A specimen of the 
blind Asellus Foreli, Blanc, bore many Vorticelle. There was also 
a perfectly transparent Cypris. A rather large, fusiform, rather 
thick, pale reddish Rhabdoccelous Turbellarian formed a rather deep 
furrow in the mud when moving forward. Of Protozoa there were 
a Oothurnia with a yellow, sessile, beaker-shaped carapace, and a 
Rhizopod of the family Euglyphina, a Cyphoderia, Schlumb. (mar- 
garitacea ?). 
The pelagic fauna of the Lac d’Annecy included :—Cladocera : 
Daphnella brachyura, Liey., Daphnia hyalina, Leyd. (the most 
numerous of the Cladocera); a Bosmina (rare here also); and 
Leptodora hyalina, Lill}. 
Copepoda: a species of Cyclops and one of Diaptomus. Bytho- 
trephes appears to be wanting here also. 
Corethra-larvee in considerable numbers. 
Rotatoria: three species, Asplanchna helvetica (extraordinarily 
abundant), Anurewa spinosa (rare), and Anurea longispina (less 
rare). 
Eis : a species of Dinobryon and one of Ceratium. 
The deep fauna at the same place, at 80 metres, was richer than 
in the Lac du Bourget. Colonies of redericella bore many exam- 
ples of the Rotatorian Floscularia proboscidea, Khr., together with 
four species of Infusoria, namely Stentor ceeruleus, Khr. (pretty abun- 
dant), two species of Vorticelle (in considerable quantity), and 
Epistylis (Opercularia) nutans, Ehr. Other Protozoa met with were 
Carchesium polypinum, Ehr. (not uncommon), an Ameba, and the 
same Cyphoderia as in the Lac du Bourget. 
Besides these, the author dredged up a species of Pisidium and 
Asellus Foreli; of the Cladocera, Sumocephalus veiulus, O. F. Mill., 
and Lynceus affinis, Leyd.; of the Ostracoda, a species af Cyprid ; 
of the Copepoda, a Canthocamptus, probably undescribed. A dingy 
white Hydra also occurred.—Zool. Anzeiger, vi. no. 155, Dec. 10, 
1883, p. 655. 
