282 Dr. O. E. Imhoi' on the Microscopic Fauna 



lakes occurring in other cantons, the following results may he 

 indicated : — 



1. TtJRLEESEE (Zurich ; not belonging to the region of the Alps), 



647 metres. — (Prot.) Dlnohrijon sertularia, Ehr. ; D. 

 diveir/ens, Imh. ; Peridinium, sp. ; Ceratium hirundinella, 

 0. F. Miill. (Rot.) Annrcea cochlear is, Gosse ; A. lonr/i- 

 spina, Kell. ; Asplanclina helvetica, Imh. (Clad.) Sida 

 crystaJlina, Miill. ; Daphnia. sp. ; Bosmina, sp. ; Leptodora 

 liijalina, Lillj. (Cop.) Cyclops, sp. ; Diaptomus, sp. 



2. Lti>"GERXsKE (Unterwalden), 659 metres. — (Prot.) Peridinium, 



8]). ; Ceratium hirundinella, 0. F. Miill. (Rot.) Anuroea 

 loufispina, Kell. ; Asplanchna helvetica, Imh. (Clad.) 

 Sida crystallina, Miill. ; Dajihnia, sp. ; Bosmina, sp. ; 

 Leptodora hyalina, Lillj. (Cop.) Cyclops, sp. ; Diaptomus, 

 sp. 



3. Egekisee (Zug), 727 metres. — (Rot.) Anurcna longispina, Kell. ; 



Asplanchna helvetica, Imh. (Clad.) Daphnia, sp. ; Bos- 

 mina, sp. ; Leptodora hyalina, Lillj. (Cop.) Cyclops, sp. ; 

 Diaptomus, sp. 



4. Seelisbergeesee (Uri), 753 metres. — (Prot.) Peridinium , sp. ; 



Ceratium hirundinella, 0. F. Miill. (Rot.) Triarthra 

 lonr/iseta, Ehr.; Anurcea cochlearis, Gosse; Asplanchna 

 helvetica, Imh. (Clad.) Dapluiia, sp. ; Bosmina, sp. (Cop.) 

 Cyclops, sp. 



6. Klonthalersee (Glarus), 804 metres. — (Clad.) Daphnia, sp. ; 

 (Cop.) Cyclops, sp. ; Diaptomus, sp. 



6, Seealpsee (Appenzell), 1142 metres. — In this lake the material 



■was collected for me on July 24, 1885, by M. Heuscher 

 with my apparatus. (Rot.) Conochilus volvox, Ehr. ; Anu- 

 rcea aculeata, Ehr. ; A. lonyispina, Kell. ; Asplanchna 

 helvetica, Imh. (Clad.) Bosmina, sp. (Cop.) Cyclops, sp. 

 Asplanchna helvetica especially occurred in enormous 

 numbers of individuals. 



7. Engstlensee (Berne), 1852 meti'es. — (Rot.) Anurcea longispina, 



Kell. (Clad.) Daphnia, sp. (Cop.) Cyclops, sp. ; Diap- 

 tomus alpinus, Imh. 



Lakes situated in the Canton Graubiinden : — 



1. Cresta (near Flims), 830 metres. — (Clad.) Lynceus truncatus 



(captured in the region of the pelagic fauna). (Cop.) 

 Diaptomus, sp. 



2. Laaxeesee (near Flims), 1020 metres. — (Clad.) Daphnia, sp. ; 



Bosmina, sp. ; Lynceus, sp. (Cop.) Cyclops, sp. 



3. Dayosersee, 1561 metres. — (Prot.) Peridinium, sp. ; Ceratium 



