Micropygidae


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Micropygidae

[‚mī·krə′pij·ə‚dē]
(invertebrate zoology)
A family of echinoderms in the order Diadematoida that includes only one genus, Micropyga, which has noncrenulate tubercles and umbrellalike outer tube feet.
References in periodicals archive ?
Emlet (1988a) has argued on the basis of larval form that the Micropygidae, which have also been raised to ordinal status by Jensen (1981), should also be included as a family in the Diadematoida.
This prediction is in stark contrast to the 2-arm larvae with widely spread arms (the "Echinopluteus transversus" of Mortensen, 1921) found in all members of the closely related families Diadematidae and Micropygidae.
On the basis of this prediction, Emlet (1988a) suggested that the family Aspidodiadematidae must be a sister group to the families Diadematidae, Lissodiadematidae, and Micropygidae, all of which have only a single pair of larval arms (Fig.