Acanthodasys caribbeanensis
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Ordo: Macrodasyida
Familia: Thaumastodermatidae
Genus: Acanthodasys
Name
Acanthodasys caribbeanensis Hochberg, Rick, 2010 – Wikispecies link – Pensoft Profile
- Acanthodasys caribbeanensis Hochberg, Rick, 2010, ZooKeys 61: 2-3.
Diagnosis
Diagnosis. Acanthodasys with an adult body length from 375 µm to 625 µm long. Maximum body width at mouth/PIJ/midpoint of body is 30/62/100 µm. Pharynx to 238 µm long. Cuticle of spineless and spined scales. Spineless scales of various shape. Spined scales bear uniancres to 50 µm long, distributed as one dorsal column flanked by two dorsolateral columns and two lateral columns. Uniancres also extend dorsally across mouth rim. Ten epidermal glands per side. Up to nine TbA per side inserting directly on body surface at mouth rim. TbL absent. At least 43 TbVL per side beginning at PIJ and extending onto the outer edges of the caudal lobes. Two TbP insert terminally on caudal lobes, two insert medially. Hermaphroditic, with paired testes and single glandular caudal organ. Rosette organ on left dorsolateral side of body; single ovary present.
Etymology
Etymology. Named after the region of origin, referring to the Caribbean (Latin adjectival ending: ensis; caribbeanensis).
Description
Description. The description is based on the holotype (adult, 625 µm long), with ranges given from specimens measured in vivo. Body strap-shaped and 425-625 µm long (Fig. 1A). Mouth region narrow; body inflates at U04, narrows again at U08, and widens toward the trunk. Widths of mouth at U04/pharynx region at U08/PIJ at U36/trunk at U50/caudal base at U92 are 30/67/105/125/20 µm. Pharynx 23 8 µm long with pharyngeal pores at U32. Dorsal rim of oral hood, ca. 10 µm wide, free of cuticular spines and fringed with numerous mobile cilia and few stiff sensory hairs to 10 µm long. Epidermal glands to 18 µm diameter and to 10 per side. Ventral locomotory cilia present as a complete field beginning at ca. U08 and extending to the caudum (Fig. 2B).
Taxon Treatment
- Hochberg, Rick; Atherton, Sarah; 2010: Acanthodasys caribbeanensis sp. n., a new species of Thaumastodermatidae (Gastrotricha, Macrodasyida) from Belize and Panama ZooKeys, 61: 2-3. doi
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