Issoca

Issoca
Issoca rezendei
Scientific classification
Kingdom:
Animalia
Phylum:
Platyhelminthes
Class:
Rhabditophora
Order:
Tricladida
Suborder:
Continenticola
Family:
Geoplanidae
Subfamily:
Geoplaninae
Genus:
Issoca

Froehlich, 1955
Type species
Geoplana rezendei
Schirch, 1929

Issoca is a genus of land planarians from Brazil.

Description

The genus Issoca is characterized by the presence of a spoon-shaped head having a cephalic retractor muscle, which allows those animals to pull their anterior end upwards and backwards. Associated to the muscle are cephalic glands, forming a so-called cephalic musculo-glandular organ in a way similar to the one found in the genera Choeradoplana and Luteostriata. The copulatory apparatus usually lacks a permanent penis papilla, i. e., the penis is formed during copulation by folds in the male cavity which are pushed outwards.[1][2]

Etymology

The name Issoca comes from Tupi içoca (worm, maggot).

Species

There are five described species in the genus Issoca:

  • Issoca assanga Araujo & Carbayo, 2018
  • Issoca jandaia Froehlich, 1955
  • Issoca piranga Froehlich, 1955
  • Issoca potyra Froehlich, 1957
  • Issoca rezendei (Schirch, 1929)
  • Issoca spatulata (Graff, 1899)
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References
  1. Froehlich, C. G. (1955). Sobre Morfologia e Taxonomia das Geoplanidae. Boletim da Faculdade de Filosofia, Ciências e Letras da Universidade de São Paulo, Série Zoologia. 19: 195-279.
  2. Carbayo, F. (2010). A new genus for seven Brazilian land planarian species, split off from Notogynaphalia (Platyhelminthes, Tricladida). Belgian Journal of Zoology. 140: 91-101.
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