''Ibla'' is a genus of
barnacle
A barnacle is a type of arthropod constituting the subclass Cirripedia in the subphylum Crustacea, and is hence related to crabs and lobsters. Barnacles are exclusively marine, and tend to live in shallow and tidal waters, typically in eros ...
. In 1848,
Charles Darwin
Charles Robert Darwin ( ; 12 February 1809 – 19 April 1882) was an English naturalist, geologist, and biologist, widely known for his contributions to evolutionary biology. His proposition that all species of life have descended fr ...
studied the genus and found species with hermaphrodites and tiny males. In this genus the number
androdioecious
Androdioecy is a reproductive system characterized by the coexistence of males and hermaphrodites. Androdioecy is rare in comparison with the other major reproductive systems: dioecy, gynodioecy and hermaphroditism. In animals, androdioecy has bee ...
species is uncertain because some authors use the words
female
Female (Venus symbol, symbol: ♀) is the sex of an organism that produces the large non-motile ovum, ova (egg cells), the type of gamete (sex cell) that fuses with the Sperm, male gamete during sexual reproduction.
A female has larger gamet ...
and
hermaphrodite
In reproductive biology, a hermaphrodite () is an organism that has both kinds of reproductive organs and can produce both gametes associated with male and female sexes.
Many Taxonomy (biology), taxonomic groups of animals (mostly invertebrate ...
interchangeably.
Species
Species in this genus include:
*''
Ibla cumingi''
*''
Ibla quadrivalvis
''Ibla quadrivalvis'' is a species of barnacle in the Iblidae family. The common name for this species is hairy stalked barnacle.
The species was studied by Charles Darwin. He first described that this specie is androdioecious
Androdioecy is a ...
''
*''
Ibla atlantica''
*''
Ibla sibogae''
*''
Ibla pygmaea''
*''
Ibla idiotica''
*''
Ibla cuvieriana''
References
*Leach, M.D. (1825). XXIII. A tabular view of the Genera composing the Class Cirripedes, with Descriptions of the Species of Otion, Cineras, and Clyptra. ''The Zoological journal.'' 2: 208-215. page(s): 209
cited in WoRMS http://www.marinespecies.org/aphia.php?p=taxdetails&id=205861
*WoRMS (2021). Ibla Leach, 1825. Accessed at: http://marinespecies.org/aphia.php?p=taxdetails&id=205861
{{Taxonbar, from1=Q15896258, from2=Q21216255
Barnacles