THE ANNALS 



AND 



MAGAZINE OF NATURAL HISTORY. 



[FOURTH SERIES.] 

 No. 99. MARCH 1876. 



XIX. — Oil the Polytreraata {Foramimfera), esjjeci'aUi/ with 

 reference to their Mythical Ilyhrid Nature. By H. J. 

 Carter, F.R.S. &c. 



[Plate XIII.] 



Synonymy 0/ Polytrema ininiaceum. 



Millepora «!»»'« era, Linn. 1788, Syst. Naturae, ed. Gmel. vi. p. 3784; 



Esper, 1797, vol. i. tab. xvii. 

 Millepora rubra, Lamk. 1816, Anira. sans Vert. vol. ii. p. 202. 

 Polytrema corallina, Risso, 1826, Hist. Nat. Europ, merid. vol. v. p. 340. 



lie. 91. 

 Polytrema miniaceum, De Blainville, 1834, Man. d'Actin. p. 410, and 



p. 673, pi. Ixix. fig. 4. 



Polytrema miniaceum, De Blainville, 1834. 

 PL XIII. figs. 1-6. 



The true nature and position of tliis organism in the animal 

 kingdom was first recognized and pointed out by the illustrious 

 Dujardin, who, in 1841, placed it in his third family of Rhi- 

 zopoda (Hist. J^at. des Zoophytes Infusoires, p. 259) — con- 

 jecturally, it is true (but such is at once the modesty and 

 sagacity of this author that his conjectures may almost be 

 taken as facts) ; while its pseudopodial extensions are illus- 

 trated by those of his Vorticialis strigilata = Polystomella {op. 

 cit. pi. i. fig. 15). I need hardly add that the genera of his 

 Rhizopoda are respectively Arcella, Diffiugia, Trinema, Eu- 

 glypha, Gromia, 3[iliola, Cristellaria, and Vorticialis, to which 



Ann. & Mag. N. Hist. Ser, 4. Vol. xvii. 13 



