New record of the soft-bodied genus Franciscideres (Kinorhyncha) from Argentina, with notes on its movement and morphological variation
| Autor: | Kevin Alen Rucci, Birger Neuhaus, Néstor J. Cazzaniga, Verónica Natalia Bulnes |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Microscopy
Sex Characteristics INTERTIDAL MEIOBENTHOS Movement Gland cell Morphological variation Argentina Anatomy Biology TAXONOMY biology.organism_classification Franciscideres Invertebrates Posterior margin Sexual dimorphism purl.org/becyt/ford/1 [https] INTRASPECIFIC VARIATION Animals Animal Science and Zoology Taxonomy (biology) Kinorhyncha BUENOS AIRES PROVINCE purl.org/becyt/ford/1.6 [https] Ecology Evolution Behavior and Systematics |
| Zdroj: | CONICET Digital (CONICET) Consejo Nacional de Investigaciones Científicas y Técnicas instacron:CONICET |
| Popis: | Samples collected from Monte Hermoso, Buenos Aires Province, Argentina revealed the presence of specimens of the genus Franciscideres Dal Zotto et al., 2013, previously known only from Brazil. This morphotype seems to differ from the only known species, Franciscideres kalenesos Dal Zotto et al., 2013, in the following characters: (1) presence of ventrolateral tubes on segment 1, (2) introvert features, (3) each segment composed of a closed cuticular ring, (4) trunk cuticle ornamented by a secondary fringe of knob-like structures, (5) posterior margin of segment 10 ventrally terminating in two lateral and one broad triangular lobes, (6) posterior margin of segment 11 centrally terminating in four lobes (7) lateral terminal spines armed with thorn-like processes, (8) pores/sensory spots/gland cells distribution and (9) sexual dimorphism in segments 10 and 11. Because of the lack of full information about F. kalenesos from Brazil, we consider the new exemplars as Franciscideres cf. kalenesos. Additionally, we provide new information about the movement of this species using light microscopy and we compare these movements with those of other meiofaunal inhabitants. Fil: Rucci, Kevin Alen. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina Fil: Neuhaus, Birger. Staatliches Museum fur Naturkunde Stuttgart; Alemania Fil: Bulnes, Verónica Natalia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Ciencias Biológicas y Biomédicas del Sur. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Instituto de Ciencias Biológicas y Biomédicas del Sur; Argentina Fil: Cazzaniga, Néstor Jorge. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina |
| Databáze: | OpenAIRE |
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