Atrioplanaria De Beauchamp, 1932

Stocchino, Giacinta Angela, 2018, 80 years of research on planarians (Platyhelminthes, Tricladida) from Sardinia, Italy: an annotated checklist, Zootaxa 4532 (4), pp. 539-552 : 544-545

publication ID	https://doi.org/10.11646/zootaxa.4532.4.5
publication LSID	lsid:zoobank.org:pub:807B317B-D883-439F-97B9-B0C0F09D9666
DOI	https://doi.org/10.5281/zenodo.5988972
persistent identifier	https://treatment.plazi.org/id/C45EE309-B11D-FFF3-66FB-F8FE1087FD5F
treatment provided by	Plazi (2019-03-28 15:58:19, last updated 2024-11-26 06:04:37)
scientific name	Atrioplanaria De Beauchamp, 1932
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Genus Atrioplanaria De Beauchamp, 1932 View in CoL

During the late 1930s specimens of Atrioplanaria sp. were collected from a hydropetric habitat on limestone in the surroundings of Sassari (northwestern Sardinia), representing the first record of planarians from Sardinian subterranean water and the first Italian record of the genus ( Benazzi, 1938a, 1942) ( Fig. 3 View FIGURE 3 ). A seasonal cycle with sexual and asexual reproduction was observed under laboratory conditions ( Benazzi, 1942).

Dahm (1964) performed a karyological study on specimens of this population, revealing a chromosome number of 2n = 46. However, this author was unable to obtain a suitable idiogram due to the very slight and gradual differences between the very small chromosomes.

Unfortunately, several attempts during last decades to collect new planarians in the same water body were unsuccessful due to significant environmental changes, i.e. anthropogenic impact on suburban areas (G.A. Stocchino pers. obs.)

Other specimens of Atrioplanaria sp. were recorded in 1952 from Su Coloru Cave (northern Sardinia) and from an old mine (Baccu Arrosu, southwestern Sardinia) ( Benazzi, 1982) ( Fig. 3 View FIGURE 3 ). These last findings were the first records of cave-dwelling populations of triclads in Sardinia.

Specimens of presumed Atrioplanaria sp. were also found in two small temporary rivers on Caprera Island in the La Maddalena Archipelago National Park (northeastern Sardinia) ( Manconi et al., 1995; Pala & Casu, 1995) ( Fig. 3 View FIGURE 3 ).

References

Benazzi, M. (1938 a) Tricladi Paludicole della Sardegna. Archivio Zoologico Italiano, 25, 85 - 94.

Benazzi, M. (1942) Ulteriori osservazioni su una Fonticola (Atrioplanaria sec. De Beauchamp) della Sardegna. Bollettino di Zoologia, 13, 28 - 34.

Benazzi, M. (1982) Tricladi cavernicoli italiani. Lavori della Societa Italiana di Biogeographia, 7, 7 - 14. https: // doi. org / 10.21426 / b 67110042

Dahm, A. G. (1964) The taxonomic relationships of the European species of Phagocata (? = Fonticola) based on karyological evidence. Arkiv For Zoologi, 16, 481 - 509.

Manconi, R., Deriu A. & Cubeddu, T. (1995) Fauna bentonica di piccoli corsi d'acqua dolce di tre isole circum-sarde. Lavori della Societa Italiana di Biogeographia, 18, 219 - 228.

Pala, M. & Casu, S. (1995) Tricladi dulciacqucoli (Platyhelminthes, Turbellaria) delle isole circum-sarde. Lavori della Societa Italiana di Biogeographia, 18, 199 - 204.

Figures

FIGURE 3. Geographic distribution of species of the genera Dendrocoelum, Atrioplanaria, Phagocata and Crenobia recorded from Sardinia. 1, Punta della Scomunica Spring, Asinara Island National Park; 2, Elighe Mannu Spring, Asinara Island National Park; 3, Sassari surroundings; 4, Su Coloru Cave; 5, Rio S. Stefano and Rio Stagnali, Caprera Island, La Maddalena Archipelago National Park; 6, Monte Majore Cave; 7, Sa Ucca ‘e su Peltusu Cave; 8, unnamed spring at Alà dei Sardi; 9, Gennargentu Massif; 10, Cuccuru Tiria Cave; 11, Baccu Arrosu Mine.