EncheUa.'\ infusorial animalcules, 563 



food onwards is seen in the serpcutinc canal, to which the stomachs are 

 attached like berries ; even, says Dr. Elu'enbcrg, the stalk or short tube 

 connecting them is visible when they receive or discharge coloured 

 food. The longitudinal rows of cilia are very numerous in fidl- 

 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 1 -280th to l-96th. 



Leucopheys Spa f hula =Enchelys /S^fli/w/fl;, M.) — Body lanceolate, 

 compressed, whitish, membrane-like at its anterior extremity, where it 

 is obliquely truncated, and a narrow mouth situated. Found amongst 

 Lemna. Length 1-1 40th. 



L. sanguinea^Trichoda striata, M) fig. 279 Body cylindrical, roun- 

 ded at both extremities, and of the colour of blood. Ehrenberg remarks 

 that within it are two bright contractile round bladders, and that 

 when the creature undergoes self-division, (fig. 280), there is always 

 one in each part. Length 1-1 44th; ova granules 1-1 2000th. 



Jj. pyriformis (Kolpoda pyrum, M.) — Body ovate, whitish, rather 

 more acute anteriorly; ventricles large. Size l-570th to l-280th. 



L. carnium {Kolpoda pyrum, M.) — Body oval, oblong, acute 

 anteriorly, and of a whitish colour ; ventricles narrow. Found in 

 putrescent animal water, and draining of manure. Size 1- 1440th 

 to 1 -430th. 



L. (?) anodont(B {Leucophra fiinda, M.) — Body oval, turgid, and 

 transparent; rounded at both extremities. Found in Siberia and 

 Copenhagen. Size 1 -430th 



L. striata (Duj.) — Body oblong, marked by thirty-five longitudinal 

 granular striae. Length l-325th to l-200th. Found in Lumbrici 

 (worms) of gardens. 



L. nodulata (Duj .) — Body oblong, regularly ciliated ; without distinct 

 striae ; but having two series of vacuoloe. Found also in Lumbrici. 



The two other genera of Dujardin's family ' Leucophryens,' are 

 Spathidium and Opalina: the latter we shall speak of imder the 

 genus JBursaria, in which some of its examples are included by 

 Ehrenberg. 



Genus Spathidium. — Body oblong, thicker and more rounded 

 behind ; thinner, expanded, and truncated in front. 



S. hyalinum. — Body oblong, lanceolate, hjulinc ; thin, and almost 



