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Penares

{{Short description|Genus of sponge}}

{{Automatic taxobox

| image = Plate 76 (Dickinson, 1945).jpg

| image_caption = Penares cortius

| taxon = Penares

| authority = Gray, 1867

| type_species = Penares helleri

| type_species_authority = (Schmidt, 1864)

| subdivision_ranks = Species

| subdivision = See text.

| synonyms = *Jasplakina de Laubenfels, 1954

  • Pachamphilla Lendenfeld, 1907
  • Papyrula Schmidt, 1868

| synonyms_ref =

}}

Penares is a widely distributed genus of demosponges. {{GBIF|id=2248288|taxon=Penares|accessdate=30 September 2021}}

Description

These sponges are irregularly massive and have a thin cortex. Species belonging to this genus have dichotriaenes (spicules with pairs of branched rays) and oxeas (needle-like spicules with both ends pointed). Smooth microrhabds (modified microxeas (small oxeas) or microstrongyles (small rods with both ends blunt or rounded)) form a crust in the ectosome. Euasters (star-shaped microscleres with multiple rays radiating from a central point) may also be present.{{Citation|last=Hooper|first=John N. A.|title=Family Acarnidae Dendy, 1922|date=2002|url=https://doi.org/10.1007/978-1-4615-0747-5_51|work=Systema Porifera: A Guide to the Classification of Sponges|pages=412–431|editor-last=Hooper|editor-first=John N. A.|place=Boston, MA|publisher=Springer US|language=en|doi=10.1007/978-1-4615-0747-5_51|isbn=978-1-4615-0747-5|access-date=2021-09-30|editor2-last=Van Soest|editor2-first=Rob W. M.|editor3-last=Willenz|editor3-first=Philippe|url-access=subscription}}

Species

The following species are recognised: {{WoRMS|title=Penares|id=131992|access-date=30 September 2021}}

{{columns-list|colwidth=width|* Penares alatus (Lendenfeld, 1907)

References

{{Taxonbar|from=Q6538346}}

Category:Demospongiae

Category:Sponge genera