Amphipholis januarii
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Ordo: Ophiurida
Familia: Amphiuridae
Genus: Amphipholis
Name
Amphipholis januarii Ljungman, 1866 – Wikispecies link – Pensoft Profile
Description
Disk circular or pentagonal (dd = 1.90 to 2.70 mm). Covered by small and imbricating scales (Fig. 5a). Radial shields long, narrow, contiguous, separated proximally by a scale (Fig. 5a). Ventral interradius covered by slightly smaller scales, but similar to those on dorsal surface (Fig. 5b). Oral shields diamond-shaped (Fig. 5c). Adoral shields broadened laterally, almost united medially. Two elongated and broadened oral papillae on each side of jaw angle (Fig. 5c). Infradental papillae rectangular and robust. Dorsal arm plate broader than long, with proximal margin rounded and distal margin almost straight (Fig. 5d). Ventral arm plates pentagonal (Fig. 5e). Three to four elongate and blunt arm spines, the second or third with hyaline denticles on tip (Fig. 5f). Two perpendicular tentacle scales, inner scale slightly larger than outer.
Distribution
South Carolina, Florida, the islands off southern Florida, Texas, the Antilles, Belize, Panama, and Brazil (Hendler et al. 1995[1], Alvarado et al. 2008[2]). In Brazil from Pará (Albuquerque 1986[3], Borges and Amaral 2005[4]), Ceará (Lima-Verde 1969[5]), Paraíba (Gondim et al. 2008[6]), Alagoas (Lima et al 2011), Bahia (Magalhães et al. 2005[7]), Rio de Janeiro (Ljungman 1867[8], type locality), and São Paulo (Tommasi 1970[9]). Depth 1 to 85 m. Recorded in this study from 10 to 26 m.
Remarks
Species known from bottoms of mud, sand, shells (Tommasi 1970[9]), between algae, under rocks, tending to be abundant in seagrass beds (Hendler et al. 1995[1]). According to Boffi (1972)[10], juveniles are very abundant in algae.
Taxon Treatment
- Gondim, A; Alonso, C; Dias, T; Manso, C; Christoffersen, M; 2013: A taxonomic guide to the brittle-stars (Echinodermata, Ophiuroidea) from the State of Paraíba continental shelf, Northeastern Brazil ZooKeys, 307: 45-96. doi
Other References
- ↑ 1.0 1.1 Hendler G, Miller J, Pawson D, Kier P (1995) Sea stars, sea urchins and allies: echinoderms of Florida and the Caribbean. Smithsonian Institution Press, Washington, 390 pp.
- ↑ Alvarado J, Solís-Marin F, Ahearn C (2008) Echinoderms (Echinodermata) from Central America Caribbean. Revista de Biologia Tropical 56: 37-55.
- ↑ Albuquerque M (1986) Ophiuroidea Gray, 1840 (Echinodermata) da plataforma continental do norte e nordeste brasileiro. PhD thesis, São Paulo: University of São Paulo.
- ↑ Borges M, Amaral A (2005) Classe Ophiuroidea. In: Amaral A Rizzo A Arruda E (Eds). Manual de Identificação dos Invertebrados Marinhos da região Sudeste-Sul do Brasil. Universidade de São Paulo, São Paulo: 272-283.
- ↑ Lima-Verde J (1969) Primeira contribuiçăo ao inventário dos equinodermos do Nordeste brasileiro. Arquivos de Ciências do Mar 9: 9-13.
- ↑ Gondim A, Lacouth P, Alonso C, Manso C (2008) Echinodermata da Praia do Cabo Branco, João Pessoa, Paraíba, Brasil. Biota Neotropica 8: 151–159. http://www.biotaneotropica.org.br/v8n2/pt/abstract?inventory+bn02408022008, doi: 10.1590/S1676-06032008000200016
- ↑ Magalhães W, Martins L, Alves O (2005) Inventário dos Echinodermata do Estado da Bahia. Brazilian Journal of Aquatic Science and Technology 9: 61-65.
- ↑ Ljungman A (1867) Om några nya arter af Ophiurider. Öfversigt af Konglige Vetenskaps-Akademiens Förhandlingar 1866: 163-166.
- ↑ 9.0 9.1 Tommasi L (1970) Os ofiuróides recentes do Brasil e de regiões vizinhas. Contribuições do Instituto Oceanográfico, Universidade de São Paulo Série Oceanografia Biológica 20: 1–146. doi: 10.1590/S0373-55241971000100001
- ↑ Boffi E (1972) Ecological aspects of ophiuroids from the phytal of S. W. Atlantic Ocean warm waters. Marine Biology 15: 316-328. doi: 10.1007/BF00401391
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