Cratera hina is a species of land planarian belonging to the subfamily Geoplaninae.[1] It is known from specimens found in the Paranapiacaba Conservation Units Mosaic in Brazil.[2]
| Cratera hina | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Platyhelminthes |
| Order: | Tricladida |
| Family: | Geoplanidae |
| Genus: | Cratera |
| Species: | C. hina
|
| Binomial name | |
| Cratera hina (Marcus, 1951)
| |
| Synonyms | |
|
Geoplana hina Marcus, 1951 | |
Description
editCratera hina is a flatworm that can reach up to 60 mm in length. The dorsal side of the body consists of a lateral black band on each side of the body and a median orange band. The frontal margin is black.[2]
Aside from its size and coloration, it is distinguished from other members of Cratera by having a ciliated epidermis both dorsally and ventrally, dorsal eyes that initiate in the head region, a short penis bulb that extends very little anteriorly to the penis papilla, a bifurcated and extrabulbar proximal portion of the prostatic vesicle that is attached from the penis bulb, an ejaculatory duct that isn't distally dilated, a thick muscle tube surrounding the ejaculatory duct with a diameter triple that of the duct, an underlying muscularis of the penis papilla made up of two circular layers with a longitudinal layer in between, the dorsal insertion of the penis papilla being slightly anterior to the ventral one, a penis papilla that projects into the female atrium, the dorsal surface of the male atrium being pierced by several glands, and the lack of a common glandular duct.[2]
References
edit- ^ "WoRMS - World Register of Marine Species - Cratera hina (Marcus, 1951)". www.marinespecies.org. Retrieved 2023-07-21.
- ^ a b c Lago-Barcia, D.; Carbayo, F. (2018). Taxonomic revision of four species of the Neotropical land planarian genera Cratera and Geoplana (Platyhelminthes, Tricladida) with a description of two new species and an emendation of Cratera. Zootaxa. 4500(4): 517-542. doi:10.11646/zootaxa.4500.4.3
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