BIOLOGY OF THE SCOTTISH LOCHS 
327 
field). ForeP gives P. cyclopum as found in the pelagic region, and 
Acineta elegans^ Imhof, as occurring on Entomostraca in the abyssal 
region. 
Flagellata. — 443. Dinobryon. — How many species of Dinohryon 
are to be admitted I know not. In the Scottish lochs are found 
the forms or species diveigens^ Imh. ; cyVindricum^ Imh. ; stipHatmn^ 
Stenr. ; and elongatum^ Imh. 
444. Mallomonas pkrssli^ Perty. Common. 
445. Synura uvella. Ehr. 
446. Uroglena volvooc^ Ehr. Loch Uanagan. 
447. Cryptomonas ovata^ Ehr. 
Phanerogamia. — The following list of flowering plants is in 
great part extracted from a paper by G. West,"^ who examined some 
of the lochs of the Ness and other basins. Though I have added a 
few plants which were not found in the lochs visited by Mr West, 
this list is shorter than his. As Mr West remarks in his paper, while 
there is no doubt about the aquatic plants, there is room for difference 
of opinion as to what semi-aquatic plants should be admitted, and I 
have drawn the line closer and omitted many of his semi-aquatics. 
Some plants are so adaptable that they are capable of living a per- 
fectly aquatic or completely terrestrial life. 
448. Ranuncuhis hederaceiis. L. 
449. R. flamrnidct^ L. 
450. R. circinatiLS^ Sibth. 
451. Caltha palustris^ L. 
452. Castalia speciosa, Salisb. 
453. Nyynphwa lutea^ L. 
454. N. puniila^ Hoffm. 
455. N. alba, L. 
456. Comarimi palustri% L. 
457. Feplis poriula^ L. 
458. Lytlirimi mlicriria, L. 
459. Epilobium palustir-^ L. 
460. Hippjtris vulgarity L. 
461. Myrwphyllu7n cdtermjiormn^ D. C. 
462. M. spkatum^ L. 
463. Callitriche stagnalis^ Scop. 
464. C. hamulata^ Kutz. 
465. Montia fontana^ L. 
466. Hydrocotyle vulgaris, L. 
^ Le Lemrm, vol. iii. p. 131. 
2 Proc. Roy. Soc. Edin., vol. xxv. p. 967, 1905. 
