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Eurytus) Aff. Rhodocheilus (Reeve, 1848 BIOMA Nº 54, Año 5, enero 2020 1 ISSN 2307-0560 BIOMA Nº 54, Año 5, enero 2020 Plekocheilus (Eurytus) aff. rhodocheilus (Reeve, 1848) (Gastropoda: Pulmonata: Amphibulimidae) del Estado de Santa Catarina, SC, Brasil: un caso de identidad taxonómica solucionado Plekocheilus (Eurytus) aff. rhodocheilus (Reeve, 1848) (Gastropoda: Pulmonata: Amphibulimidae) from Santa Catarina State, SC, Central Southern Brazil region: a case of taxonomic identity resolved A. Ignacio Agudo-Padrón Projeto Avulsos Malacológicos – AM, Santa Catarina, SC, Brasil. Correo electrónico: [email protected] Resumen Abstract Después de seis años de incertidumbre y expectativas, y con base en Soon after six years of uncertainty and expectations, and based on timely observaciones oportunas de naturaleza bioecológica a partir del seguimiento observations of a bioecological nature from the follow-up of its natural de su ciclo de vida natural (serie de crecimiento, desarrollo de edad, desde life cycle (growth series/ age development, from the egg/ newborn to the el huevo hasta el adulto reproductor), se establece y/o revela que la especie reproductive adult), it is established/ revealed that the native Strophocheilidae: nativa Strophocheilidae: Mirinaba fusoides (Bequaert, 1948) es la identidad species Mirinaba fusoides (Bequaert, 1948) is the correct taxonomic specific taxonómica específica correcta del caracol forestal hasta ahora determinado identity of the mystery forest snail so far determined as Amphibulimidae: como Amphibulimidae: Plekocheilus (Eurytus) aff. rhodocheilus (Reeve, 1848), Plekocheilus (Eurytus) aff. rhodocheilus (Reeve, 1848), based on young specimen basado en un espécimen joven fotografiado ocasionalmente en campo el 16 occasionally photographed in the field on November 16, 2013 found in leaf de noviembre de 2013 encontrado en hojarasca de bosque de Araucaria en litter of Araucaria forest at Itaiópolis, Santa Catarina State/ SC, Central Itaiópolis, Estado de Santa Catarina/ SC, región Central Sur del Brasil. Southern Brazil region. Palabras clave: Amphibulimidae, Gastrópodo, Caracol forestal, Plekocheilus, Keywords: Amphibulimidae, Gastropod, forest snail, Plekocheilus, Pulmonate, Pulmonado, Strophocheilidae, Mirinaba Strophocheilidae, Mirinaba 37 ISSN 2307-0560 BIOMA Nº 54, Año 5, enero 2020 Introducción Introduction Son necesarios urgentemente profundos estudios e investigaciones sobre la Depth studies and researches about the basic biology (reproductive cycles and biología básica (ciclos reproductivos y aspecto morfo-físico de las líneas de morpho-physical aspect of growth lines) of the land forest molluscs present crecimiento) de los moluscos forestales terrestres presentes en el territorio in the geographical territory of Santa Catarina State/ SC are urgently needed geográfico del Estado de Santa Catarina/ SC, Brasil, para ayudar en la correcta for the aid in the correct determination of the detected species, in addition to determinación de las especies detectadas, además de investigaciones ecológicas middle- and longterm ecological research for known their conservation status a mediano y largo plazo para conocer su situación en cuanto a su estado de situation (Agudo-Padrón 2018 a: 12). conservación (Agudo-Padrón 2018 a: 12). The following case (chronological saga) clearly reflects and exemplifies the El siguiente caso (saga cronológica) refleja y ejemplifica claramente la situación situation previously commented: comentada anteriormente: Background & Material examined Antecedentes y material examinado - In November 16, 2013 a forest snail (young specimen (?), with aprox. 50mm) - En noviembre 16 de 2013 un misterioso caracol forestal (espécimen joven (?), is found (photographed) in leaf litter of Araucaria forest at “Reserva Particular con aproximadamente 50 mm) es encontrado (fotografiado) en la hojarasca do Patrimônio Natural - RPPN” (Private Reserve of Natural Heritage) localized de bosque de Araucaria en Reserva Particular (Privada) de Patrimonio in “Itaiópolis” Municipal District (26º20’11”S & 49º54’23”W), Malacological Natural – RPPN, localizada en el Distrito Municipal Itaiópolis (26º20’11”S region number six ~ High Valley of Itajaí River, Santa Catarina State/ SC y 49º54’23”W), región malacológica número seis, Alto Valle del Río Itajaí, (Woelh 2013), previously determined by us as Bulimulidae: Plekocheilus (Eurytus) Estado de Santa Catarina/ SC (Woelh 2013), previamente determinado por sp (Agudo-Padrón 2014; Agudo-Padrón et al. 2014), based in Simone (2006: nosotros como Bulimulidae Plekocheilus (Eurytus) sp (Agudo-Padrón 2014; 149-150), and in parallel form as Amphibulimidae: Plekocheilus aff. rhodocheilus Agudo-Padrón et al. 2014), con base en la contribución de Simone (2006: 149- (Reeve,1848) (Breure 2014), both on attemp condition, being “adopted” the 150), y en forma paralela como Amphibulimidae: Plekocheilus aff. rhodocheilus last denomination onwards (Agudo-Padrón 2018 a, 2018 b; Breure 2018). (Reeve, 1848) (Breure 2014), ambos en condición tentativa, siendo adoptada - In January 21, 2017 a second field record of this species from the State (other la última denominación en adelante (Agudo-Padrón 2018 a, 2018 b; Breure two similar young (?) live specimens, shells with aprox. 28 and 31mm.) (Fig. 1), 2018). is found in hill between native forest and “Eucalyptus” plantation, presenting - En enero 21 de 2017 un segundo registro en campo de esta especie para el “defensive position”, hidden inside the shell in the middle of the path (trail) Estado (otros dos especímenes jóvenes (?) similares vivos, con conchas de at “Timbé do Sul” Municipal District (28º45’53.46”S & 49º48’03.52”W - 494 aproximadamente 28 y 31mm.) (Fig. 1) es encontrado en una colina entre meters above sea level), border with the neighboring State of Rio Grande do bosque nativo y plantación de Eucaliptos, presentando posición defensiva, Sul/ RS, Malacological region number five ~ South, Santa Catarina State/ SC, escondidos dentro de la concha en el medio del camino (sendero) en el Distrito collected by Jefferson Souza da Luz (staff of the “Project AM”). Placed in a Municipal, Timbé do Sul (28º45’53.46” S; 49º48’03.52 “W - 494 metros sobre el terrarium but, regrettably, dead few days later leaving only her fragile shells. nivel del mar), frontera con el vecino Estado de Río Grande do Sul/ RS, región - In January 15, 2018 a singular egg (oviposition/ posture, white and elongated, malacológica número cinco Sur, Estado de Santa Catarina/ SC, colectados por with aprox. 18-20mm, comparatively similar to those produced by native land Jefferson Souza da Luz (integrante del Proyecto AM). Colocados en un terrario forest snails Bulimulidae: Thaumastus – or little oviparous reptiles/ snakes) pero, lamentablemente, muertos pocos días después dejando solamente sus is occasionally find inside of a dry rolled shell Strophocheilidae: Mirinaba cf. frágiles conchas. fusoides (Bequaert, 1948)” found at “Rio do Norte” (North River), “Molha - En enero 15 de 2018, un singular huevo (oviposición/ postura, blanco y Coco Baixo” sector, Timbé do Sul Municipal District in the “Araranguá River alargado, con aproximadamente 18-20mm, comparativamente similar a los Valley” (28º49’49”S; 49º50’50”W - 123 meters above sea level), Malacological producidos por los caracoles nativos forestales Bulimulidae: Thaumastus o region number five ~ South, Santa Catarina State/ SC, collected by Jefferson 38 ISSN 2307-0560 BIOMA Nº 54, Año 5, enero 2020 Figura 1. Especímenes de caracoles forestales / Forest snails specimens, Amphibulimidae: Plekocheilus aff. rhodocheilus (Reeve, 1848), Distrito Municipal Timbé do Sul, Estado de Santa Catarina/ SC. Fotografías/Credit photos: Jefferson Souza da Luz. 39 ISSN 2307-0560 BIOMA Nº 54, Año 5, enero 2020 también pequeños reptiles/ serpientes ovíparas, es encontrado dentro de la Souza da Luz (staff of the “Project AM”). Placed in a terrarium but, regrettably, concha abandonada de un Strophocheilidae: Mirinaba cf. fusoides (Bequaert, 1948) not photographed by carelessness, it has been lost after hatching and being encontrado en Río del Norte, sector Molha Coco Baixo, Distrito Municipal de devoured by the emerging puppy, born in the first week of February 2018 (Fig. Timbé do Sul en el Valle del Río Araranguá, (28º49’49” S y 49º50’50”W - 123 2), dead few days later leaving only her fragile shell. metros sobre el nivel del mar), región malacológica número cinco Sur, Estado de Santa Catarina/ SC, colectado por Jefferson Souza da Luz (integrante del Proyecto AM). Colocado en un terrario más, lamentablemente, no fotografiado por descuido, perdiéndose después de su eclosión (nacimiento) y fue devorado por la cría emergente, nacida en la primera semana de febrero de 2018 (Fig. 2), muerta pocos días después dejando solo su frágil concha. Figura 2. Espécimen recién nacido de caracol forestal/ Forest snail newborn Amphibulimidae: Amphibulimidae: Plekocheilus aff. rhodocheilus (Reeve, 1848) Distrito Municipal Timbé do Sul, Estado de Santa Catarina State/ SC. Fotografía/ Credit photos: Jefferson Souza da Luz. - En enero 19 de 2018, se encuentra un tercer registro en campo de esta especie - In January 19, 2018 a third field record of this species from the State (most para el Estado (más otros dos especímenes jóvenes (?) vivos, con conchas de other two young (?) live specimens, shells with aprox. 33mm.) (Fig. 3), is found aproximadamente 33mm) (Fig. 3), son encontrados en un área de colina con in hill area with local plantation of palm trees and banana trees, with slopes/ plantación
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