Halacarsantia

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Taxonavigation

Ordo: Isopoda
Familia: Santiidae

Name

Halacarsantia Wolff, 1989 – Wikispecies link – Pensoft Profile

• HalacarsantiaWolff, 1989: 184.

Type species

Halacarsantia justi Wolff, 1989; by original designation.

Species included

Halacarsantia colombiensis Wolff & Brandt, 2000, Colombia; Halacarsantia justi Wolff, 1989, Andaman Sea; Halacarsantia kussakini Müller, 1992, Mooréa; Halacarsantia ovata Shimomura & Ariyama, 2004, Japan; Halacarsantia setosa Shimomura & Ariyama, 2004, Japan; Halacarsantia uniramea (Menzies & Miller, 1955), New Zealand.

Diagnosi

(modified from Wolff 1989). Body depressed, lanceolate or ovate, widest at pereonite 3, with robust setae on or near lateral margins of head, pereonites and pleotelson. Head with large, broadly rounded, frontal lobe. Eye lobes obsolete or small. No pleonite visible anterior to pleotelson. Second article of antennula with dorsolateral projection; article 5 as long as two preceding equally sized articles combined, with aesthetasc. Third article of peduncle of antenna with outer projection, with robust seta. Pereopods short, robust or slender, with robust setae, particularly on carpus. Pereopod 1 with two claws. Female operculum broader than long. Uropods uniramous.

Key to the species of Halacarsantia

Key to the species of Halacarsantia — M. Shimomura , N. Bruce

1		Mandibular palp absent    2
–		Mandibular palp present    3
2		Body with many robust setae near lateral margin, without dorsal robust setae    Halacarsantia justi
–		Body with many robust setae on dorsum    Halacarsantia setosa
3		Frontal lobe of head more than 0.6 times as wide as maximum width of head; pleotelson broader than long; uropods stout    4
–		Frontal lobe of head less than 0.3 times as wide as maximum width of head; pleotelson narrower than long; uropods narrow    5
4		Coxal plates of pereonites 1, 2 and 4–7 dorsally invisible; eyes without bulging processes    Halacarsantia ovata
–		Coxal plates of all pereonites dorsally visible; eyes with bulging processes    Halacarsantia colombiensis
5		Frontal lobe of head with 17 robust setae; antenna shorter than half length of body; pereopods 5–7 broader than preceding pereopods; uropods stout    Halacarsantia uniramea
–		Frontal lobe of head with 6 robust setae; antenna longer than half length of body; pereopods 5–7 similar to preceding pereopods; uropods slender    6
6		Lateral margins of head each with 2 robust setae; antenna flagellum composed of 11 articles; maxilliped epipod apically blunt, with 2 setae    Halacarsantia kussakini
–		Lateral margins of head each with 3 robust setae; antenna flagellum composed of 8 articles; maxilliped epipod apically acute, without setae    Halacarsantia acuta sp. n.

Taxon Treatment

• Shimomura, M; Bruce, N; 2012: A new species of Halacarsantia Wolff, 1989 (Crustacea, Isopoda, Asellota, Santiidae) from Wistari Reef, southern Great Barrier Reef, Australia ZooKeys, 173: 1-9. doi