Description of the first zoeal stage of Synalpheus apioceros Coutiere, 1909 (Caridea: Alpheidae), including a comparative analysis with larval morphology from the genus Synalpheus Spence Bate, 1888

Autor(es)

Santos, Rafael C. ^[1] ; Pescinelli, Regis A. ^[1] ; Costa, Rogerio C. ^[1]

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ, Fac Sci, Dept Biol Sci, Lab Biol Marine & Freshwater Shrimp LABCAM, Av Luis Edmundo Carrijo Coube 14-01, BR-17033360 Bauru, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Zootaxa; v. 4838, n. 1, p. 71-82, AUG 25 2020.
• Citações Web of Science: 0

Resumo

Herein, the Zoea I of Synalpheus apioceros is described, followed by a comparative analysis of the first larval stage from Synalpheus. Larvae were obtained from two ovigerous females sampled in Ubatuba, Sao Paulo. The morphology of the Zoea I of S. apioceros was compared to five other Synalpheus species whose structures were previously described: S. biunguiculatus, S. minus, S. neomeris, S. pectiniger, and S. tumidomanus. A set of unique morphological characteristics was found for S. apioceros: exopod of antennule with 4 aesthetascs and 1 plumose seta; coxal endite of maxillule with 2 simple setae plus 2 plumose setae; basial endite of maxillule with 2 simple setae plus 2 short spines; endopod of maxillule with 1 plumose seta plus 2 simple setae; basial endite of maxilla bilobed with 2 (1 plumose and 1 simple) + 2 (1 plumose and 1 simple) setae; coxal endite of maxilla bilobed with 2 + 1 plumose setae; endopod of maxilla with 3 (1 plumose and 2 simple) terminal setae + 2 simple setae; endopod of first maxilliped unsegmented with 3 terminal simple setae; basis of first maxilliped with 5 spines; endopod of second maxilliped 5-segmented with 0, 0, 0, 1 plumodenticulate, 4 (1 serrate + 3 simple) setae; endopod of third maxilliped 5-segmented with 0, 0, 0, 1 simple, 3 simple setae; pereiopods 1st to 3rd birramous and 4th and 5th uniramous. S. apioceros shows higher morphological similarity with S. minus, followed by S. tumidomanus, S. neomeris and S. pectiniger, probably since these species present extended larval development. Besides the similar morphology among species, the unique attributes presented here are important for the genus' taxonomy, being fundamental for identifying the first larval stages of Synalpheus, as well as for subsidizing information for species identification keys. (AU)

• Processo FAPESP: 18/00739-0 - Descrição e identificação da morfologia do primeiro estágio larval dos camarões do gênero Synalpheus Spence bate, 1888 (Decapoda, Caridea, Alpheidae) do litoral do estado de São Paulo
• Beneficiário: Rafael de Carvalho Santos
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 18/13685-5 - Análise integrativa da fauna brasileira de crustáceos decápodes: taxonomia, sistemática filogenética, espermiotaxonomia, morfologia do desenvolvimento pós-embrionário, ecologia e conservação
• Beneficiário: Fernando Luis Medina Mantelatto
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático