Feeding behavior of Costa Rican velvet worms: food hiding, parental feeding investment and ontogenetic diet shift (Onychophora: Peripatidae)

Barquero-González, José Pablo; Vega-Hidalgo, Álvaro; Mónge-Nájera, Julían

doi:10.1101/452706

Cited by 1 publication

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“…comm). In captivity, our specimen gave birth to numerous offspring and stayed in close contact with them for about three days after birth, behaviors such as food sharing were recorded, young individuals fed on the glue strings used to capture prey rather than the prey itself (Barquero-González et al, 2019). Other specimens were photographed in Manzanillo, Limón in a banana plantation (Alejandra Barrantes pers.…”

Section: Non-diagnostic Featuresmentioning

confidence: 99%

“…Costa Rican onychophorans have been placed within this group. Even though Costa Rican onychophorans have been studied in the last few years (Morera-Brenes, Monge-Nájera, & Sáenz, 1988;Monge-Nájera, Barrientos, & Aguilar, 1993;Monge-Nájera, 1995, Mora, Herrera, & León, 1995Monge-Nájera, 1996;Morera-Brenes, & Monge-Nájera, 2010;Oliveira et al, 2012a;; Barquero-González, Acosta-Chaves, Sotela, Villalobos-Brenes, & Morera-Brenes, 2016a; Barquero-González, Alvarado Cabrera, Valle-Cubero, Monge-Nájera, & Morera-Brenes, 2016b; Monge-Nájera, 2017; Barquero-González, Morera-Brenes, & Monge-Nájera, 2018; Barquero-González et al, 2019), their taxonomy remains deficient.…”

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A new giant velvet worm from Costa Rica suggests absence of the genus Peripatus (Onychophora: Peripatidae) in Central America

González

Sánchez-Vargas²,

Morera-Brenes³

2020

RBT

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Introduction: Neotropical onychophoran taxonomy and diversity has been poorly investigated. Recent studies have discovered problems in species classification: they have questioned the accepted genera and the actual number of species. This is true in Costa Rica, where several unidentified species have been reported. Objective: The objective of this investigation was to evaluate the occurrence of the accepted genera in this country, and to describe a new genus and species from Central America. Methods: In 2017, we collected one onychophoran in the Keköldi Indigenous Reserve in Talamanca, Limón, Costa Rica. The specimen gave birth to several offspring. Therefore, seven organisms were analyzed. Light microscopy was used to observe the gross morphology in all samples. The detailed morphology was studied in the biggest specimen with scanning electron microscopy; after that, we performed a phylogenetic analysis with the corresponding sequence of COI. Results: According to our results, a new genus and species of giant onychophoran was found. The genus was identified by its giant size, apical piece of seven scale ranks, large conical primary papillae, dorso-median furrow flanked by two-three accessory papillae, the absence of hyaline organs and a marked sexual dimorphism with respect to the number of legs. The new species presents a particular head pattern, as well as novel structures like cephalic papillae, accessory papillae with rudimentary apical pieces, and a lack of antennal chemoreceptors. Phylogenetic analysis rendered our genus as monophyletic and includes Peripatus solorzanoi, which is grouped within the Central American clade. As our species is clustered inside the Costa Rica-Panamanian group, it is not related to the Caribbean Island nor Guyanan Shield samples, home of Epiperipatus and Peripatus respectively. Therefore, we suggest that those genera do not occur in Central America, and a new genus exists: Mongeperipatus, gen. nov. Conclusion: We concluded that Costa Rica is home to a diversity of undescribed onychophorans that requires specific studies to help clarify the taxonomy and evolutionary relationships of the group to justify their protection.

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Section: Non-diagnostic Featuresmentioning

confidence: 99%

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confidence: 99%

A new giant velvet worm from Costa Rica suggests absence of the genus Peripatus (Onychophora: Peripatidae) in Central America

González

Sánchez-Vargas²,

Morera-Brenes³

2020

RBT

View full text Add to dashboard Cite

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Feeding behavior of Costa Rican velvet worms: food hiding, parental feeding investment and ontogenetic diet shift (Onychophora: Peripatidae)

Abstract: We report, for the first time in onychophorans, food hiding, parental feeding investment and an ontogenetic diet shift two weeks after birth: from the parent's adhesive used to capture prey, to the prey itself.

Cited by 1 publication

References 9 publications

A new giant velvet worm from Costa Rica suggests absence of the genus Peripatus (Onychophora: Peripatidae) in Central America

A new giant velvet worm from Costa Rica suggests absence of the genus Peripatus (Onychophora: Peripatidae) in Central America

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