Euchlanidota.] THE INFUSORIA. 385 



" therefore/' remarks Ehrenberg, " I was never able to see 

 the line of division on the ventral surface of the lorica; the 

 relationship of the fibres of the lateral muscles is physio- 

 logically and anatomically interesting : they form three 

 bundles upon each side, and show as distinct corrugations, 

 as do the muscles of larger animals/' Fig, 443 represents 

 a fore-shortened view. Fig. 442 is a left side view, shew- 

 ing the dorsal crest of the lorica. At the base of the foot 

 an external empty fold of the skin is visible. Fig. 441 

 represents the ventral surface, and exhibits an opening for 

 the foot, but no visible division of the lorica is seen. 

 Fig. 444 shows the teeth and jaws separate. Found in 

 turf pools. Length l-48th; ovum, l-192nd. 



660. EUCHLANIS (?) Hornemanni. Hornernanris Eu- 

 chlatiis. Lorica thin, short, cup- shaped, truncated in 

 front, the anterior part of the body soft (pliant) and elon- 

 gated. This creature appears able to draw within the 

 lorica both foot and head. Sometimes longitudinal mus- 

 cles are apparent, and Ehrenberg has seen three delicate 

 parallel transverse lines, which he states to be vessels. 

 Length 1 -432nd to 1 -240th. 



661. EUCHLANIS luna (Cercaria luna, M.) The moon- 

 shaped Euchlanis. Lorica cup-shaped, the front excised in 

 a lunate manner, toes with claws. The single-toothed jaw, 

 the constriction of the alimentary canal, and the claws, 

 distinguish it from the other species. Found amongst 

 Ceratophyllum and conferva. Length 1-1 44th, 



662. EUCHLANIS macrura. The long-footed Euchlanis. 

 Lorica large, ovate, depressed ; bristles at the base of the 

 foot; toes long, styliform. This species is distinguished 

 from the following one by its stronger and longer toes. 



2c 



