1) Clypeaster rosaceus (Linn.)
2) perhaps Moira atropus (Lam.)
3) Echinometra viridis (Agassiz)
4) Melitta sexiesperforata (Leske)
5) Eucidaris tribuloides (Lam.)
6) Diadema antillarum (Philippi)
7) Encope michelini (Agassiz) or Encope emarginata (?)




At 00:16 10-02-00 -0400, you wrote:
>Good evening All. I have to find the name of a few common sea urchins from
Florida. If someone could put a few Latin names to
>the common I'd appreciate this.  I'll give the common name and a brief
description.
>Sea Biscuit, ovate, fat , no holes , thick , heavy, no spines prickly brown
velvet perio.
>Sea mouse, tan , bristly perio, round in shape, very delicate, no spines
>Common green urchin, cast is green purple, short stiff spines.
>sand dollar, flat, round, 5 holes plus one near center, brown fine perio
>pencil urchin, cast round , fine tan perio, heavy thick blunt spines
>black spined urchin, cast white, pimpled living animal black  very long
SHARP spines
>From mexico, arrow head sand dollar, flat white cast, 5 holes that pertrude
into edge, one large hole near center , sorry
>about the common names and thank you for the help , Mark & Peta bethke
>
>
Dennis C.Nieweg