Paramecium

[paul earl]

Dear Friend in Need,

                            I would like to clean up some odd Paramecium
spp. I need data on Dragesco's 4 P. jankowsii, P ugandae, P africanum
and P pseudotrichium. Other fugitives are P wichtermani, P arcticum and
P dragescoi Aliev, 1990.

The reference for P wichtermani is: Mohammed AH, Nashed NN. 1968-69.
Paramecium wichtermani  n. sp. with notes on other species of Paramecium
common in the fresh-water bodies in the area of Cairo and its environs.
Bull Zool Soc Egypt 22: 89-104. I cannot find this in Biosis, Pubmed,
Zool Record, etc. Help !

I do not have access to Ralph Wicherman's wonderful 1986 book.

The Dragesco 1970 reference is An Fac Sci Yaoundé 1-141. Of course, I
need only the Paramecium figures & text. Two other Dragesco are: An Fac
Sci Cameroun 9: 87-126, 1972, and Fauna Tropicale 26: 1-559, 1986.

I have a new P. sp in Mexico. Nearest neighbor (!) is Texan P sonneborni
Aufderheide, Daggett & Nerad, 1983 (ref. ID; 4061 original paper). of
the aurelia complex. I need all dimensions. Example: anterior to buccal
cavity.

This is ALL the information I have except for Dragesco's 1970 drawings
found at

http://www.bondy.ird.fr/pleins_textes/pleins_textes_6/Idt/00554.pdf#search=%22dragesco%2C%20protozoaires%2C%20pdf%22

Measurements can be taken off drawings. As this method was good enough
for Renné Descartes, it's simply good enough till something better comes
along. Note that aurelia complex species cannot be told apart by using
18S rDNA, yet some can be easily discriminated morphometrically.

Thank you for your kind attention to these requests.

My Very Best,

Paul R. Earl

Repeated:
http://www.bondy.ird.fr/pleins_textes/pleins_textes_6/Idt/00554.pdf#search=%22dragesco%2C%20protozoaires%2C%20pdf%22






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[paul earl]

Morphometrics fails to identify closely related ciliates that have the
same appearance, mostly because they vary in size through the clonal
cycle. Humans recognize shape, whereas computer programs like
Fisher-Mahalanobis Discriminant Analysis commonly are prone to recognize
by size. Has-or-has-not produces rather few characters.

The morphogenesis of ciliates uses random distribution statistics for
the taxonomy of ciliates, although the cell is cyclic and determined.
The arithmetic mean (AM), the standard deviation (SD) and the mode (M)
are determined, and so are genetic factors including clonal cycle
effects. Some cell regulation has long been developed in Paramecium by
James D. Berger and his associates.

It is now suggested that the mode of distance units with 10 %
percentiles is the most informative and logically applicible descripter.
Trigonometric variables should be used in morphometrics.

Paul R Earl

Universidad Autonoma de Nuevo Leon

San Nicalas, NL, Mexico


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