(ofPseudopallene difficile Arango, 2009)Arango, C.P. (2009). New species and new records of sea spiders (Arthropoda: Pycnogonida) from deep waters in Western Australia. Zootaxa, 1977: 1–20.[details]
Bamber, R.N.; El Nagar, A.; Arango, C.P. (Eds) (2024). Pycnobase: World Pycnogonida Database. Meridionale difficile (Arango, 2009). Accessed through: Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2024) European Register of Marine Species at: https://marbef.org/data/aphia.php?p=taxdetails&id=851539 on 2024-09-19
Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2024). European Register of Marine Species. Meridionale difficile (Arango, 2009). Accessed at: http://marbef.org/data/aphia.php?p=taxdetails&id=851539 on 2024-09-19
original description(ofPseudopallene difficile Arango, 2009)Arango, C.P. (2009). New species and new records of sea spiders (Arthropoda: Pycnogonida) from deep waters in Western Australia. Zootaxa, 1977: 1–20.[details]
Present Inaccurate Introduced: alien Containing type locality