290 ESSAY ON CLASSIFICATION. 



has been satisfactorily ascertained that the Corallines and 

 Nullipores are genuine Algae which contain more or less 

 lime in their structure, and since there is hardly any 

 group among the lower animals and lower plants which 

 does not contain simple locomotive individuals, as well as 

 compound communities, either free or adhering to the 

 soil, I do not see that the facts known at present preclude 

 the possibility of an association of the Ehizopods with 

 the Algae. This would almost seem natural, when we 

 consider that the vesicles of many Fuci contain a viscid, 

 filamentous substance, so similar to that protruded from 

 the body of the Rhizopods, that the most careful micro- 

 scopic examination does not disclose the slightest differ- 

 ence in its structure from that which mainly forms the 

 body of Rhizopods. The discovery by Schultze 1 of what 

 he considers as the germinal granules of these beings by 

 no means settles this question, since we have similar ovoid 

 masses in Algae, and since, among the latter, locomotive 

 forms are also very numerous. 2 



"With reference to the Infusoria, I have long since ex- 

 pressed my conviction that they are an unnatural com- 

 bination of the most heterogeneous beings. A large 

 number of them, the Desmidieae and Volvocinae, are 

 locomotive Algae. Indeed, recent investigations seem to 

 have established beyond all question the fact, that all the 

 Infusoria Anentera of Ehrenberg are Algae. 3 The Ente- 

 rodela, however, are true animals, but belong to two very 

 distinct types, for the Vorticellidae differ entirely from all 



1 ScnuLTZE(M.S.),Polythalamien, more I examine these enigmatical 

 q. a., p. 24. bodies the more do they impress me 



2 The recent investigations of Ehr- as being allied to the lower Alga; and 

 enberg and J. Muller, q. a., p. 113, to the Sponges, rather than to any 

 note 2, indicate a very close affinity type of the animal kingdom, 

 between the Thalassicolne, the Poly- 3 Comp. the works, q. a., p. 113, 

 cystinee and the Rhizopods; and the note 2. 



