Convoluta punctata | 1952 | litoral | | litoral and marine caves. |
Convoluta sordida | 1878 or 1879 | | | |
Convoluta cinereus | 1878 or 1879 | | | |
Convoluta paradoxa | prior to 1882 | | | |
Mesostoma neapolitanum | prior to 1882 | | | 1 speciment found between Ulven |
Macrorhynchus naegelii | prior to 1882 | | | |
Hyporhynchus setigerus | prior to 1882 | | | |
Hyporhynchus penicillatus | prior to 1882 | | | everywhere but rare |
Anoplodium schneideri | prior to 1882 | | | |
Solenopharynx flavidus | prior to 1882 | | | 2 specimens in Ulven (Ulva lactuca). |
Plagiostomum maculatum | prior to 1882 | | | in Ulven (Ulva) . |
Plagiostomum reticulatum | prior to 1882 | | | in Ulven (Ulva) |
Vorticeros auriculatum | prior to 1882 | | | |
Vorticeros luteum | prior to 1882 | | | |
Monotus lineatus | prior to 1882 | | | |
Monotus bipunctatus | prior to 1882 | | | |
Proporus venenosus | 1878 or earlier | | | |
Aphanostoma diversicolor | 1882 or earlier | | | |
Convoluta paradoxa | 1866 or earlier | | | |
Plagiostomum girardi | 1955 or earlier | | | |
Hofsteniola pardii | Oct, Nov 1955 | 2-8 m | | very rare and difficult to find even in areas where it has been found. Found on the plant Posidonia. |
Haplodiscus ussowi | 1889 | pelagic | | |
Trigonoporus cephalophthalmus | prior to 1884 | | | Melobesia zone of Secca di Gajola, Bay of Naples, Italy |
Anonymus virilis | prior to 1884 | | | |
Planaria siphunculus | prior to 1928 | | | |
Graffilla muricicola | 1913 or earlier | | | in the kidney of Murex trunculus L. and Murex brandaris L. Parasite. |
Umagilla forskalensis | 1906 or earlier | | | gut of Holothuria forskalii. |
Umagilla forskalensis | 1953 or earlier | | | gut of Holothuria forskalia. |
Syndesmis echinorum | 1913 or earlier | | | in sea urchins [Strongylocentrotus droebachensis (Müll.), S. lividus Brdt., Sphaerechinus granularis A.Ag., Echinus sphaera Müll., E. acutus Lam.] |
Anoplodium parasita | 1953 or earlier | | | parasite in Holothuria tubulosa and Stellata. |
Anoplodium gracile | 1953 or earlier | | | parasite in Holothuria forskalii. |
Anoplodium gracile | 1906 or earlier | | | parasite in Holothuria forskalii Chiaje |
Anoplodium graffi | 1892 or earlier | | | parasite in Holothuria impatiens Gm. |
Collastoma minutum | 1906 or earlier | | | in the gut of Phymosoma granulatum F.S. Leuckart. |
Typhlorhynchus nanus | 1902 or earlier | | | ectoparasite on Nephthys scolopendroides Chiaje |
Promesostoma marmoratum | 1913 or earlier | | | very active, in marine and brackish water. |
Promesostoma marmoratum marmoratum | 1913 or earlier | | | very active, in marine and brackish water. |
Promesostoma marmoratum nudum | 1913 or earlier | | | |
Promesostoma ovoideum ovoideum | 1913 or earlier | | | |
Promesostoma solea solea | 1913 or earlier | | | |
Paramesostoma neapolitanum | 1913 or earlier | | | |
Polycystis mamertina | 1913 or earlier | | | |
Prostomum immundum | 1857 or earlier | | | |
Mesostomum chlorosticum | 1857 or earlier | | | |
Plicastoma bimaculatum | 1913 or earlier | | | |
Mecynostomum filiferum | Apr 1958 | 4 m | sand | Reiner Mittelsand aus 4 m Wassertiefe, vor "Villa Galotti". |
Boreocelis urodasyoides | Apr 1958 | 4 m | sand | Reiner Mittelsand aus 4 m Wassertiefe, vor "Villa Galotti". |
Heterochaerus langerhansi | 1952 | | | marine caves. |
Tyrrheniella sigillata | 1952 | 1.0-1.2 m | | marine caves. |
Planocera graffi | 1884 or earlier | | | associated with Balanus, Halichondria, Penares, Lithodomus, Halichondria-Astroides. |
Prosthiostomum siphunculus | 1828 or earlier | | | associated with Posidonia. |
Leptoplana pallida | 1845 or earlier | | | associated Halimeda-Peyssonelia, Euspongia-Lithodomus. |
Planocera graffi | 1884 or earlier | | | associated with Balanus, Halichondria, Penares, Lithodomus, Halichondria-Astroides. |
Ceratopera gracilis | Mar 1958 | | | "Villa Rendel", between Posidonia and algae (Caulerpa, Cryptonemia u.a.). Few specimens. |
Archimonocelis mediterranea | 1938 or earlier | | | Type material was stored the Zoological Museum of Berlin and destroyed during the Second World War. |
Sopharynx typhlops | 1929 or earlier | | | |
Lenopharynx languidus | 1929 or earlier | | | |
Cestoplana raffaelei | 1928 or earlier | | | |
Anoplodium pusillum | 1892 or earlier | | | from body cavity of Holothuria poli. |
Typhlorhynchus nanus | 1902 or earlier | | | from Nephthys scolopendroides. |
Cerbussowia cerruti | 1909 or earlier | | | |
Planaria nesidensis | 1822 or earlier | | | Gulf of Genua and Nizza, Italy. |
Prostheceraeus violaceus | 1822 or earlier | | | |
Pseudoceros muelleri | 1829 or earlier | | | Naples, Gulf of Naples. |
Macrostomum parthenopeum | 1951 | | | |
Haplodiscus ussowi | 1905 or earlier | | | Golf von Neapel und Messina. |
Proporus venenosus violaceous | 1882 or earlier | | | Mittelmeer (Neapel). |
Otocelis rubropunctata | 1905 or earlier | | | Mittelmeer (Neapel) |
Syndesmis echinorum | 1895 or earlier | | | from Sphaerechinus granularis (Toxopneustidae). |
Cestoplana faraglionensis | 1884 or earlier | | | |
Discocelis tigrina | 1884 or earlier | | | |
Thysanozoon brocchii | 1933 or earlier | | | |