120 



JOURNAL E. A. S. (CEYLON.) [Vol. Ill 



CEYLON ENTOZOA. 



Order. Parenchymata. 



This order includes all those Entozoa which have the body 

 filled with a parenchyma, or pulpy matter, either in a cellular 

 tissue, or simply in the cavity, in which there is no alimentary 

 apparatus to be discovered, except a few canals, which carry 

 nourishment to all these parts. The ovaries are also imbedded 

 in the parenchyma ; there is no abdominal cavity, no intestine, 

 and no vent ; and the signs of a nervous system are few and 

 doubtful. — Cuv. 



Fain. Tremadotea, 



Have the under part furnished with cup-like discs, or suckers, 

 by which they adhere. 



Genus. Planaria. 



Body flattened, depressed. Like the Flukes (which infest the 

 liver of sheep), they are bi-sexual. Very voracious, and will 

 even feed upon their own species. They multiply rapidly in 

 the ordinary way, and also by division of the body — even 

 spontaneous division as is alleged. Mutilated parts are also 

 very readily reproduced, and a partial division of the body, 

 will even produce an animal with two heads or two tails, 

 according as the anterior or posterior end is cleft. Several 

 species inhabit the fresh waters, but larger ones are met with 

 on sea shores. — Cuv. 



The species herein described are all marine, found on rocks 

 and sea-weeds in the harbour and bays of Trincomalie. They 

 are exceedingly interesting creatures, some rivalling the tribe 

 of Dorididce in colours. They live for a long time in the 

 Vivarium. The mouth, situated in most of the species near 

 the anterior third of under part of medial line, opens and dilates 

 like that of a sea-anemone. Ova of most species white ? deposited 

 hi thin flakes on rocks and sea«weed< 



