Renaudarctus psammocryptus Kristensen & Higgins, 1984b

Kaczmarek, Łukasz, Bartels, Paul J., Roszkowska, Milena & Nelson, Diane R., 2015, The Zoogeography of Marine Tardigrada, Zootaxa 4037 (1), pp. 1-189 : 129-130

145. Renaudarctus psammocryptus Kristensen & Higgins, 1984b

Renaudarctus psammocryptus n. sp. ( Kristensen & Higgins 1984b)

Terra typica : Atlantic Ocean ( USA, North America)

Atlantic Ocean:

• 27°30.0 ′ N, 80°17.0′ W / 27°30′N, 80°17′W; 0 m bsl: [FAO31] Type Locality: USA, Florida State, St. Lucie County, Fort Pierce, Pepper State Park Beach [Pepper Beach State Recreation Area], high-energy beach, 2 m above mean low-water level, 70–100 cm deep, coarse quartz sand and shell hash. Kristensen & Higgins (1984b)

• 26°21.0 ′ N, 80°04.0′ W / 26°21′N, 80°04′W; 0 m bsl: [FAO31] USA, Florida State, Palm Beach County, Boca Raton, Red Reef Park Beach, high-energy beach, coarse quartz sand and shell hash. Kristensen & Higgins (1984b)

• 16°20′N, 61°05′9W [16°20′N, 61°05′W]; 0 m bsl: [FAO31] Guadeloupe Islands, La Désirade Island, Anse Petite Rivière, intertidal, 35–65 cm deep in sand, coarse sand (mean diameter 0.2–0.52 mm). Renaud- Mornant (1984b)

Caribbean Sea:

• 16°21′N, 61°35′W; 0 m bsl: [FAO31] Guadeloupe Islands, Grand-Cul-de-Sac Marin Bay, Fajou Island, intertidal, 35–65 cm deep in sand, coral sand (mean diameter 0.2–0.52 mm). Renaud-Mornant (1984b) • 14°27′5N, 60°54′9W [14°28′N, 60°55′W]; 0 m asl: [FAO31] Martinique Island, Anse Figuiers, intertidal, 35– 65 cm deep in sand, fine coral sand (mean diameter 0.2–0.52 mm). Renaud-Mornant (1984b)

Indian Ocean:

• 04°22′S, 55°50′E; 0 m bsl: [FAO51] Republic of Seychelles, La Digue Island, Anse la Source à Jean [Anse Source d’Argent], medium sand. Gallo et al. (2007)

Record numbers (Sea/Ocean classification): Atlantic Ocean: 3, Caribbean Sea: 2, Ionian Sea: 1; total: 6.

Record numbers (FAO classification): FAO31: 5, FAO51: 1; total: 6.

Remarks: This species is known from a few localities in Florida ( USA) and along the Antilles islands chain in the Atlantic Ocean and Caribbean Sea, and from the Indian Ocean. However, the localities reported by Renaud- Mornant (1984b) are unclear, as the author stated that this species accompanied Parastygarctus sterreri , but no details were provided for the samples. Our interpretation of this record may be incorrect and its distribution in the Caribbean may be slightly smaller. It is an intertidal and interstitial species collected from 30–100 cm deep in sand.