Styraconyx tyrrhenus D’Addabbo Gallo, Morone De Lucia & Grimaldi

Kaczmarek, Łukasz, Bartels, Paul J., Roszkowska, Milena & Nelson, Diane R., 2015, The Zoogeography of Marine Tardigrada, Zootaxa 4037 (1), pp. 1-189 : 111-112

119. Styraconyx tyrrhenus D’Addabbo Gallo, Morone De Lucia & Grimaldi de Zio, 1989

Styraconyx tyrrhenus new species (D’Addabbo Gallo et al. 1989)

Styraconyx tyrrhenus D’Addabbo Gallo et al., 1989 (D’Addabbo Gallo et al. 1999a, Grimaldi de Zio & D’Addabbo Gallo 2001, Gallo et al. 2007)

Styraconyx tyrrhenus D’Addabbo Gallo et al. 1988 ( Accogli et al. 2011) Terra typica: Tyrrhenian Sea ( Italy, Europe)

Indian Ocean:

• 04°15′N, 72°49′E; 19m bsl: [FAO51] Republic of the Maldives, Ari Nord Atoll, coarse sand. Gallo et al. (2007)

• 03°57′N, 73°25′E; 6 m bsl: [FAO51] Republic of the Maldives, Male Sud Atoll, coarse sand. Gallo et al. (2007)

• 04°19′S, 55°52′E; 0 m bsl: [FAO51] Republic of Seychelles, Coco [Cocos] Island, coarse sand. Gallo et al. (2007)

Ionian Sea:

• 39 ° 51.41′N, 18°23.75′E; 20 m bsl: [FAO37] Italy, Lecce Province, Gagliano, coarse sand. Accogli et al. (2011)

• 39 ° 51.26′N, 18°23.55′E; 20 m bsl: [FAO37] Italy, Lecce Province, Gagliano, coarse sand. Accogli et al. (2011)

Ligurian Sea:

• 43°32 ′ N, 10°12′E; 7 m bsl: [FAO37] Italy, Livorno Province, 300 m NW of Meloria Shoals Lighthouse, sediment samples. D’Addabbo Gallo et al. (1999a)

Mediterranean Sea:

• 35°54′N, 14°32′E; 41 m bsl: [FAO37] Republic of Malta, SE coast of Malta, Sicily Channel, 1.75 km SE of the entrance of Grand Harbour and 1.4 km NW of the coastal settlement Xghajra, fine sand. Grimaldi de Zio & D’Addabbo Gallo (2001)

Tyrrhenian Sea:

• 40°20′30′′N, 09°40′15′′E; 0–80 m bsl: [FAO37] Type Locality: Italy, Sardinia Island, Nuoro Province, Orosei Gulf, organogenic debris and Posidonia seagrass meadow. D’Addabbo Gallo et al. (1989), Grimaldi de Zio & D’Addabbo Gallo (2001)

Record numbers (Sea/Ocean classification): Ionian Sea: 2, Indian Ocean: 3, Ligurian Sea: 1, Mediterranean Sea: 1, Tyrrhenian Sea: 1; total: 8.

Record numbers (FAO classification): FAO37: 5, FAO51: 3; total: 8.

Remarks: This is probably a Mediterranean species in the sargassi group reported from different substrates in a few intertidal and subtidal localities. However, this species was also relatively recently reported from the Indian Ocean, although in our opinion, these records need confirmation.