286 DESCRIPTION OP [Poli/gastrica. 



the animalcule is quiet, the passage of the food onwards is 

 seen (during eating) in the serpentine canal to which the 

 stomachs are attached, like berries; even, says Dr. 

 Ehrenberg, the stalk or short tube connecting them is 

 visible when they receive or discharge coloured food. 

 The longitudinal rows of cilii are very numerous in full- 

 grown specimens. The ova are white by incident light, 

 brownish by transmitted ; in the middle of the body is a 

 small globular male gland. Found both in fresh and sea 

 water. Size l-280th to l-96th. 



449. Leucophrys spathula {E. Spathula, M.) — This 

 creature has a lanceolate, compressed, whitish body, mem- 

 brane-like at its anterior extremity, where it is obliquely 

 truncated, and a narrow mouth situated. Found amongst 

 lemna. Length l-140th. 



450. Leucophrys sanguinea [Trichoda striata, M.) The 

 red Leucophrys. — This beautiful-coloured creature, shewn 

 at Jig. 279, has a cylindrical body, rounded at both extremi- 

 ties, and of the colour of blood. Ehrenberg remarks that 

 within it are two bright contractile round bladders, and 

 when the creature undergoes self-division, as shewn in 

 Jig. 280, there is always one in each part. Length 1-1 44th; 



ova granules 1- 12000th. 



451. Leucophrys pyriformis {Kolpoda pyrum, M.) The 

 pear-shaped Leucophrys has an ovate whitish body, rather 

 more acute anteriorly, ventricles large. Size l-570th to 

 l-280th. 



452. Leucophrys cfl;7?mm {Kolpoda pyru?n,M.) — Has 

 an oval oblong body, acute anteriorly, and of a whitish 

 colour, ventricles narrow. Found in putrescent animal 

 water, and draining of manure. Size 1-1 440th to l-430th. 



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