. The biology of the protozoa. Protozoa; Protozoa. 214 BIOLOGY OF THE PROTOZOA podium). In other cases the individual divides within the shell, after which one of the daughter individuals moves out and forms a new shell, while the other one remains in the original test {Micro- gromia socialis, Clathrulina elegans, etc, Fig. 107). In most cases, however, a novel method of shell duplication found in no other divi- sion of the Protozoa, has been developed. This process, known as "budding division," occurs throughout the group of the testate. Fig. 107'.—Microgromia socialis after Hertwig
. The biology of the protozoa. Protozoa; Protozoa. 214 BIOLOGY OF THE PROTOZOA podium). In other cases the individual divides within the shell, after which one of the daughter individuals moves out and forms a new shell, while the other one remains in the original test {Micro- gromia socialis, Clathrulina elegans, etc, Fig. 107). In most cases, however, a novel method of shell duplication found in no other divi- sion of the Protozoa, has been developed. This process, known as "budding division," occurs throughout the group of the testate. Fig. 107'.—Microgromia socialis after Hertwig (A), and Microgromia sp. (B), original. rhizopods and is well illustrated by the classical example of Euglypha aheolata first described by Schewiakoff (188S). Here after full growth following vegetative activity of the individual, the pseudo- podia are drawn in; water is then absorbed whereby the protoplasmic density is greatly reduced and the volume increased. This is fol- lowed by a process resembling pseudopodia formation, the proto- plasm emerging from the parent shell opening as a ball or dome which. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Calkins, Gary N. (Gary Nathan), b. 1869. Philadelphia, Lea & Febiger
Size: 1440px × 1734px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthor, bookcentury1900, bookpublisherphiladelphialeafebiger
