Re: NANFA-- flatworms
Mon, 22 Apr 2002 19:29:21 EDT

In a message dated 4/22/02 7:23:43 PM Eastern Daylight Time, writes:

<< << At a spring in South Oklahoma, I used to collect Dugesia dorotocephala,
beautiful jet black planarian (once thought to be the largest in North
America). It occurred on all submersed surfaces including open patches of
gravel. Large numbers co-existed with orangethroat darters Etheostoma
spectabile and I never saw a fish go after one. I would use dorotocephala
as a comparison species for the planaria we used in Introductory Zoology
labs (D. tigrinum) to demonstrate differences in photonegativity.
/- >>
What would be the largest flat worm in North America? Does anyone know?

/- >>
BTW I find terrestrial flat worms in my back yard that are several inches
long and up to 1/2" wide with the typical triangular shaped head and two
black eye spots.

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