Penares is a widely distributed genus of demosponges. [2]

Penares
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Porifera
Class: Demospongiae
Order: Tetractinellida
Family: Geodiidae
Subfamily: Erylinae
Genus: Penares
Gray, 1867
Type species
Penares helleri
(Schmidt, 1864)
Species

See text.

Synonyms[1]
  • Jasplakina de Laubenfels, 1954
  • Pachamphilla Lendenfeld, 1907
  • Papyrula Schmidt, 1868

Description edit

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.[3]

Species edit

The following species are recognised: [1]

References edit

  1. ^ a b "Penares". WoRMS. World Register of Marine Species. Retrieved 30 September 2021.
  2. ^ "Penares". Global Biodiversity Information Facility. Retrieved 30 September 2021.
  3. ^ Hooper, John N. A. (2002), Hooper, John N. A.; Van Soest, Rob W. M.; Willenz, Philippe (eds.), "Family Acarnidae Dendy, 1922", Systema Porifera: A Guide to the Classification of Sponges, Boston, MA: Springer US, pp. 412–431, doi:10.1007/978-1-4615-0747-5_51, ISBN 978-1-4615-0747-5, retrieved 2021-09-30