572 DESCRIPTION OF [Pohjgastrica. 



LoxoDES cHharn {TricJioda aurantia, M.) — Eody triangiilnr and 

 compressed ; anteriorly dilated and obliqiicly truncated, but ijointcd at 

 tlie posterior extremity. Colour wliitc. Size l-430tli to l-210th. 



L. lursaria. — Body oblong ; anteriorly, obliquely truncated and 

 depressed; posteriorly hemisi^herical. Foimdinbogs. Size 1-2 80th. 



L. plicatus. Body elliptical, depressed, convex on the back, and 

 slightly plicated; the lip uncinate. Found on Conferva. Size 

 l-430th. 



The species of Loxodes mentioned hj Dujardin, are L. cumlhilus = 

 Chilodon cuculhis (Ehr.); X. cucuUis = (?) JioJjwda cuculUs M., and 

 seemingly placed by Ehrenberg among the Kolpoda. 



L. reticulatus, having an oval body, more slender and sinuous 

 anteriorly, as also more flexible ; surface granular. In marsh water 

 long kept. 



L. marinus. — Body depressed, oval, almost reniform; with internal 

 fine granules, and a row of puncta near both the anterior and pos- 

 terior margias. Length 1 -350th. Foimd in salt water. 



L. dentatus, similar to L. cuccullulus, but ha"\dng a bimdle of bristles 

 about the mouth, as in Chilodon, from which it diifers by the lorica 

 (cuii'asse) and by the absence of cilia on the surface. 



Genus Buksakia. The purse Animalcules. — This interesting genus 

 is composed of creatures covered with cilia ; anterior part convex ; 

 mouth not terminal, though simple, toothless, and devoid of tremu- 

 lous flap. The cilia serve as organs of locomotion, and are distinctly 

 seen in coloured water ; they are generally disposed in rows, those 

 around the mouth arc longer than the others. The nutritive system 

 consists of an alimentary canal, curved forwards ; it is furnished "ndth 

 digestive cells resembling little purses, which are attached to it by 

 short stalks. The mouth is large, situated, not as in Leucojjhrys, 

 obliquely at the anterior extremity of the body, but laterally, so that, 

 as it were, a brow either projects over it or else forms the end. 

 Their bile is white or reddish, the propagati^'c apparatus hermaphro- 

 dite in three species, and in five but partly known. Self-division, 

 longitudinal or transverse, has been observed in five species. 



M. Dujardin has the following remarks on this genus Bursaria. 

 "Ehrenberg, whilst admitting a genus Bursaria, separates from it 

 several true species, and places some of them in his genus Leucophrys, 



