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)
gollark: You vastly underestimate their powers.
gollark: Of course, they cannot be trusted.
gollark: According to truth cuboctahedrons, yes.
gollark: It's like they're using the majority of their computing power just to be mildly irritating.
gollark: You'd think so, but we found that they were actually somehow able to look into the future to determine the actual intended question being asked, and then give the wrong answer.

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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