Notogynaphallia

Notogynaphallia is a genus of land planarians from South America.

Notogynaphallia
Notogynaphallia plumbea
Scientific classification
Kingdom: Animalia
Phylum: Platyhelminthes
Order: Tricladida
Family: Geoplanidae
Subfamily: Geoplaninae
Genus: Notogynaphallia
Ogren & Kawakatsu, 1990
Type species
Geoplana plumbea
Froehlich, 1956

Description
Schematic drawing of the copulatory apparatus of Notogynaphallia nawei showing the prostatic vesicle (pv) opening directly into the male atrium (am) and the ovovitelline ducts (od) joining and forming the common ovovitelline duct (cod) behind the female atrium (fa).

The genus Notogynaphallia is characterized by having a small-to-medium, slender body with nearly parallel margins. The eyes are arranged along the body margins and may or not spread to the dorsum.[1][2] The copulatory apparatus lacks a permanent penis, i. e., the penis is formed during copulation by folds in the male atrium. The male part of the copulatory apparatus also lacks an ejaculatory duct, so that the prostatic vesicle opens directly into the male atrium. The female atrium is usually irregular and narrow and the ovovitelline ducts join each other behind it.[1]

Etymology

The name Notogynaphallia comes from Greek νότος (back) + γυνή (female) + ἀ (without) + φαλλός (phallus, penis), i.e., "dorsal female without penis", referring to ovovitelline ducts entering the female atrium dorsally and the absence of a permanent penis.[3]

Species

The following species are recognised in the genus Notogynaphallia:

Several other species formerly placed in Notogynaphallia are currently placed in the genera Imbira and Luteostriata.

References
  1. Carbayo, F.; Álvarez-Presas, M.; Olivares, C. U. T.; Marques, F. P. L.; Froehlich, E. X. M.; Riutort, M. (2013). "Molecular phylogeny of Geoplaninae (Platyhelminthes) challenges current classification: Proposal of taxonomic actions". Zoologica Scripta. 42 (5): 508. doi:10.1111/zsc.12019.
  2. Negrete, Lisandro; Leal-Zanchet, Ana Maria; Brusa, Francisco (2015). "A new species of Notogynaphallia (Platyhelminthes, Geoplanidae) extends the known distribution of land planarians in Chacoan province (Chacoan subregion), South America" (PDF). Zoological Studies. 54 (1): 58. doi:10.1186/s40555-015-0136-5. ISSN 1810-522X. PMC 6686113.
  3. Ogren, Robert E.; Kawakatsu, Masaharu (1990). "Index to the species of the family Geoplanidae (Turbellaria, Tricladida, Terricola) Part I: Geoplaninae". The Bulletin of Fuji Women's College. Series 2. 28: 79–166.
  4. Negrete, Lisandro; Gira, Rafael Díaz; Brusa, Francisco (2019). "Two new species of land planarians (Platyhelminthes, Tricladida, Geoplanidae) from protected areas in the southern extreme of the Paranaense Rainforest, Argentina". Zoologischer Anzeiger. 279: 38–51. doi:10.1016/j.jcz.2019.01.002. ISSN 0044-5231.
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