Aporometridae is a
monotypic family of
crinoids, the only genus being ''Aporometra'',
[ which contains three species, all endemic to the seas around Australia.]
Description
Members of this family have five arms which subdivide near the base giving them ten arms in total. The arms can reach in length and at the base of the calyx there are up to 25 cirri
Giovanni Battista Cirri (1 October 1724 – 11 June 1808) was an Italian cellist and composer in the 18th century.
Biography
Cirri was born in Forlì in the Emilia-Romagna Region of Italy. He had his first musical training with his brother ...
, often longer than the arms. Unique among Comatulida, the cirri are flattened on the underside. The gonad
A gonad, sex gland, or reproductive gland is a mixed gland that produces the gametes and sex hormones of an organism. Female reproductive cells are egg cells, and male reproductive cells are sperm. The male gonad, the testicle, produces sper ...
s are located on the pinnules and not on the arms, and the embryos are brooded in cavities in the arms.[
]
Species
The World Register of Marine Species lists the following species in this genus:
References
Comatulida
Echinoderm families
Taxa named by Hubert Lyman Clark
Animals described in 1938
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