Volvocina.'\ infusorial animalcules. 155 



animal, like wliat Mr. Sluittloworth has represented in his 7th and 

 8th figures, and which approaches Fandorina hijalitm. (Ehr.)" 



M. Vogt adds, that Gyges sanguineus ought not only to be looked 

 upon as the type of a new genus, but even of a new family, on 

 account of its very peculiar mode of reproduction. 



He foi'ther describes a new Infusorium, as a species of Gyges : — 



Gtges Vogtii. — It occurs as a globular organism, containing in its 

 interior from 2 to 5 individuals, enveloped by an apparently siliceous 

 lorica. The colour is dark red ; the globules are frequently found 

 adherent, and arranged in the form of a cross ; they are also often 

 separate. " The small individuals, probably the young, were of a 

 clear yellow hue. I could not observe the slightest motion in them." 

 On the Animalcules of the Eed ^now. —Bihliotlicque Univers de 

 Geneve, May 1841. 



Genus Pandorina. The herry-lihe globe Animalcules. — The cha- 

 racteristics of this genus are, its being destitute of eye and tail, but 

 provided with the box -like lorica, of a globular shape, and with a 

 filiform proboscis. During the process of self-division the internal 

 development gives the creatiu-e the appearance of a mulberry. A 

 simple proboscis is present in all the species (at least in all the 

 European) as the organ of locomotion, &c., and ti'ansparent vesicles, 

 seemingly the nuti'itive apparatus, may be observed. There are two 

 species only, one green, and the other colourlesss ; the latter, how- 

 ever, is a doubtful Fandorina. 



The following characteristics as given by Dujardin, appear more 

 clear than those of Ehi-enberg. 



The Fandorina consist of very small green animals, grouped into 

 globules imbedded in the interior of a gelatinous mass, diaphanous, 

 and ovoid, or globular, in figure. 



Unlike Vohox, iu which the individual animalcules occupy the 

 surface, those of the Fandorina are surrounded by a transparent 

 sphere, and the mode of the propagation being also different, no 

 fonnation of internal globes, and their ultimate escape by rupture of 

 the enclosing parent, is seen to occur. 



Fandorina elegans — Endorina elegans. (Ehr.) Dujardin esteeming 

 the presence of the red speck (supposed eye) to be insufficient to 

 characterize a genus. 



M 2 



