352 THE FRESH-WATER LOCHS OF SCOTLAND 
Plate XI I 
1. 
Juvenile Daphnia from Loch Boardhoiise (Orkney). 
Fig. 
2. 
Older 
Fig. 
3. 
Adult ,, ,, 
Fig. 
4. 
,, ,, Burraland (Shetland). 
Figs. 
5 ; 
md 6. Juvenile Daphnias from Loch Snarravoe (Shetland). 
Fig. 
7. 
Head of adult Daphnia „ ,, 
Plate XHI 
Fig. 
1. 
Head of a sloughing Daphnia in Loch Frisa (Mull). 
Fig. 
2. 
Juvenile Daphnia of Loch Frisa (Mull). 
Fia:. 
3. 
Adult „ „ Kilcheran (Lismore). 
Fig. 
4. 
Bosmina of Loch a' Chonnachair (North Uist), a procumbent 
form. 
Fig. 
5. 
Bosmina from Loch nan Auscot (Benbecula). 
Fig. 
6. 
,, of Loch Skealtar (North Uist). Note the large 
eye and the protruding brow. 
PlATF XTV 
Fig. 
1. 
Bosmina or Loch Jorough (Shetland). 
Fig. 
Q 
„ Clubbi Shuns (Shetland). 
Fig. 
3. 
Young Bosmina ot Loch lingwall (Shetland). 
Fig. 
4. 
Bosmina (old) ot Loch Llickhimin 
Fig. 
5. 
OI Locn Ba (Mull). 
Fig. 
0. 
Juvenile Bosmina oi Loch Ba (Mull). 
Fig. 
7. 
Bosmina oi Loch riart (Lismore). 
Fig. 
8. 
„ (juvenile) or Loch riart (Lismore). 
Fig. 
9. 
Notched mucro ot same. 
Fig. 
10. 
Late embryo ot a Loch riart Bosmina. 
Fig. 
n. 
Bosmina trom Loch a Lhlacham (Lewis). 
Fig. 
12. 
,, ,, „ Langavat 
Fig. 
13. 
Juvenile Bosmina from Loch Suainaval (Lewis). 
Fig. 
14. 
Adult 
Fig. 
15. 
The crossed mucrones in a late embryo from Loch nan 
Geireann (Mill) (North Uist). 
Fig. 
16. 
End of abdomen of Bosmina from Loch Ba (Mull). The 
specimen was sloughing, and the newly formed row of 
spines is out of position as a result of post-mortem 
retraction. 
Fig. 
17. 
End of abdomen of Bosmina from Loch Stacsavat (Lewis). 
Plate XV 
Figs. 1 and 2. Ceratium from Loch Fiart (Lismore). 
Fig. 3. Ceratium from Loch Baile a' Ghobhainn (Lismore). 
