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Dos Santos Dias PH, Anganoy-Criollo M. Harlequin frog tadpoles-comparative buccopharyngeal morphology in the gastromyzophorous tadpoles of the genus Atelopus (Amphibia, Anura, Bufonidae), with discussion on the phylogenetic and evolutionary implication of characters. THE SCIENCE OF NATURE - NATURWISSENSCHAFTEN 2024; 111:3. [PMID: 38252296 PMCID: PMC10803719 DOI: 10.1007/s00114-024-01889-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 12/30/2023] [Accepted: 01/05/2024] [Indexed: 01/23/2024]
Abstract
The Neotropical genus Atelopus is the most diverse genus of bufonids comprising 99 species. Tadpoles of these frogs are readily distinguished based on the presence of a belly sucker, used by them to stay attached to rocks in fast-flowing streams. Despite their intriguing biology, information about their anatomy is scarce and many morphological systems are unknown. We describe the buccopharyngeal cavity of five Atelopus species. The Atelopus buccopharyngeal cavity is characterized by (1) presence of a pendulum-like papillae in the prenarial arena, (2) presence of a glandular zone in the prenarial arena, (3) narial vacuities, (4) conical median ridge, (5) absence of buccal roof arena papillae, (6) absence of buccal roof pustulations, (7) single pair of infralabial papillae, (8) absence of lingual papillae, and (9) absence of pustulations in the buccal floor. We propose that characters 1, 2, and 3 are new synapomorphies for the genus. We also propose that the presence of a single pair of infralabial papillae is a synapomorphy for bufonid. Finally, we discuss the convergent evolution of gastromyzophorous and suctorial tadpoles withing anurans.
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Affiliation(s)
- Pedro Henrique Dos Santos Dias
- Leibniz Institut Zur Analyse Des Biodiversitätswandels, Zoologisches Museum Hamburg, Zentrum Für Taxonomie Und Morphologie, Martin-Luther-King-Platz 3, 20146, Hamburg, Germany.
- Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, Rua Do Matão No. 101, São Paulo, SP, CEP 05508-090, Brazil.
| | - Marvin Anganoy-Criollo
- Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, Rua Do Matão No. 101, São Paulo, SP, CEP 05508-090, Brazil
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Dias PHDS. First description of buccopharyngeal anatomy in Pelodryadinae larvae: Morphological comparison and systematic implications (Anura: Hylidae: Pelodryadinae: Litoria rubella and Ranoidea caerulea). J Morphol 2023; 284:e21651. [PMID: 37856280 DOI: 10.1002/jmor.21651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 09/25/2023] [Accepted: 09/26/2023] [Indexed: 10/21/2023]
Abstract
Pelodryadinae, the Australian tree frogs, is a monophyletic group endemic to the Australo-Papuan region. Although we have a relatively good knowledge about tadpoles' phenotypic diversity in terms of external morphology, information about internal anatomy is rare for the subfamily; for instance, their buccopharyngeal cavity is completely unknown. Herein I describe for the first time the buccopharyngeal anatomy of two pelodryadins: Litoria rubella and Ranoidea caerulea. I compare my results with available evidence from Phyllomedusidae, that is, the sister clade to Pelodryadinae, and briefly comment on buccopharyngeal cavity within Hylidae. Both species can be readily distinguished based on lateral ridge, postnarial, buccal roof arena, infralabial papillae, and lingual papillae. Variation between the two species may suggest a large diversity within Pelodryadinae. Pelodryadinae and Phyllomedusinae present similar buccopharyngeal morphologies, although Agalychnis callidryas has a unique morphology and putative apomorphic transformations can be observed in Pithecopus + Phyllomedusa, Ranoidea, and Phasmahyla.
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Affiliation(s)
- Pedro Henrique Dos Santos Dias
- Leibniz Institut zur Analyse des Biodiversitätswandels, Zoologisches Museum Hamburg, Zentrum für Taxonomie und Morphologie, Hamburg, Germany
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Laudor J, Schulze A, Veith M, Viertel B, Elle O, Lötters S. Morphology of lentic and lotic tadpoles from Madagascar. BMC ZOOL 2021; 6:28. [PMID: 37170302 PMCID: PMC10127085 DOI: 10.1186/s40850-021-00091-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 09/01/2021] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
The morphology of anuran larvae is suggested to differ between species with tadpoles living in standing (lentic) and running (lotic) waters. To explore which character combinations within the general tadpole morphospace are associated with these habitats, we studied categorical and metric larval data of 123 (one third of which from lotic environments) Madagascan anurans.
Results
Using univariate and multivariate statistics, we found that certain combinations of fin height, body musculature and eye size prevail either in larvae from lentic or lotic environments.
Conclusion
Evidence for adaptation to lotic conditions in larvae of Madagascan anurans is presented. While lentic tadpoles typically show narrow to moderate oral discs, small to medium sized eyes, convex or moderately low fins and non-robust tail muscles, tadpoles from lotic environments typically show moderate to broad oral discs, medium to big sized eyes, low fins and a robust tail muscle.
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Santos Dias PH, Vera Candioti F, Sabbag AF, Colaço G, Silva HR, Haddad CFB, Carvalho‐e‐Silva AMPT, Grant T. Life on the edge: Tadpoles of Cycloramphidae (Amphibia; Anura), anatomy, systematics, functional morphology, and comments on the evolution of semiterrestrial tadpoles. J ZOOL SYST EVOL RES 2021. [DOI: 10.1111/jzs.12483] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Pedro Henrique Santos Dias
- Departamento de Zoologia Instituto de Biociências Universidade de São Paulo São Paulo Brazil
- Departamento de Zoologia Universidade Federal do Paraná Curitiba Brazil
| | | | - Ariadne Fares Sabbag
- Departamento de Biodiversidade and CAUNESP Instituto de Biociências Universidade Estadual Paulista Rio Claro Brazil
| | - Gustavo Colaço
- Departamento de Biologia Animal Universidade Federal Rural do Rio de Janeiro Seropédia Brazil
| | - Hélio Ricardo Silva
- Departamento de Biologia Animal Universidade Federal Rural do Rio de Janeiro Seropédia Brazil
| | - Célio F. Baptista Haddad
- Departamento de Biodiversidade and CAUNESP Instituto de Biociências Universidade Estadual Paulista Rio Claro Brazil
| | | | - Taran Grant
- Departamento de Zoologia Instituto de Biociências Universidade de São Paulo São Paulo Brazil
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Dias PHDS, Anganoy‐Criollo M, Rada M, Grant T. The tadpoles of the funnel‐mouthed dendrobatids (Anura: Dendrobatidae: Colostethinae:
Silverstoneia
): external morphology, musculoskeletal anatomy, buccopharyngeal cavity, and new synapomorphies. J ZOOL SYST EVOL RES 2021. [DOI: 10.1111/jzs.12455] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Marvin Anganoy‐Criollo
- Departamento de Zoologia Instituto de Biociências Universidade de São Paulo São Paulo Brazil
| | - Marco Rada
- Departamento de Zoologia Instituto de Biociências Universidade de São Paulo São Paulo Brazil
| | - Taran Grant
- Departamento de Zoologia Instituto de Biociências Universidade de São Paulo São Paulo Brazil
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Dos Santos Dias PH. The remarkable larval anatomy of Proceratophrys minuta Napoli, Cruz, Abreu and Del-Grande, 2011 (Amphibia: Anura: Odontophrynidae). J Morphol 2021; 281:1086-1097. [PMID: 33448444 DOI: 10.1002/jmor.21233] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 06/14/2020] [Accepted: 06/21/2020] [Indexed: 11/08/2022]
Abstract
The free living larvae of anurans (i.e., tadpoles) are a key element in the evolution and diversification of this group, and as such, their morphology is an important element to understand the phylogenetic relationships of frogs. However, the lack of data on larval morphology prevents us from fully understanding larval evolution in several lineages. The Neotropical genus Proceratophrys currently comprises 39 species, but descriptions of the internal morphology of larvae in this group are rare and restricted to few aspects of their buccopharyngeal cavity, chondrocranium, and muscles. In the present study, I describe the internal anatomy of the tadpole of P. minuta and report a new remarkable myological character state for the species. Given the rarity of this material, the description of this species' buccopharyngeal and musculo-skeletal elements is based on two tadpoles in developmental stages 30 and 31. Several new apomorphic character states are described: (a) the presence of a conical papilla in the interior of the nostril; (b) a row of five short, conical papilla preceding the tall, postnarial papilla; and (c) the m. mandibulolabialis inserting in the gular skin. This latter feature is a remarkable, newly discovered character state that had never been reported in the literature before and is probably related to a particular feeding habit of the tadpoles of this species. The function of the m. mandibulolabialis in P. minuta is unknown.
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Dias PH, Anganoy-Criollo M, Rada M, Grant T. Comparative larval buccopharyngeal morphology of two glass frog species (Anura: Centrolenidae: Vitreorana). ZOOL ANZ 2020. [DOI: 10.1016/j.jcz.2020.10.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Dias PHS, Araujo-Vieira K, Santos RF, Both C. Review of the Internal Larval Anatomy of the Proceratophrys bigibbosa Species Group (Anura: Odontophrynidae), with Description of the Tadpole of P. brauni Kwet and Faivovich, 2001. COPEIA 2019. [DOI: 10.1643/ch-18-138] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Pedro H. S. Dias
- Universidade de São Paulo, Departamento de Zoologia, Instituto de Biociências, Rua do Matão no. 101, CEP 05508-090, São Paulo, SP, Brazil; . Send reprint requests to this address
| | - Katyuscia Araujo-Vieira
- División Herpetología, Museo Argentino de Ciencias Naturales “Bernardino Rivadavia,” CONICET, Ángel Gallardo 470, C1405DJ, Buenos Aires, Argentina;
| | - Raquel F. Santos
- Pädagogische Hochschule Freiburg, Kunzenweg 21, 79117 Freiburg, Germany;
| | - Camila Both
- Universidade Federal de Santa Maria, Cidade Universitária, Avenida Roraima, no. 1000, CEP 97105-900, Santa Maria, RS, Brazil;
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Dias PHS, Araujo-Vieira K, de Carvalho-e-Silva AMPT, Orrico VGD. Larval anatomy of Dendropsophus decipiens (A. Lutz 1925) (Anura: Hylidae: Dendropsophini) with considerations to larvae of this genus. PLoS One 2019; 14:e0219716. [PMID: 31295323 PMCID: PMC6623958 DOI: 10.1371/journal.pone.0219716] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Accepted: 06/28/2019] [Indexed: 11/18/2022] Open
Abstract
The Dendropsophus decipiens clade comprises four species: D. berthalutzae, D. decipiens, D. haddadi, and D. oliveirai. Tadpoles of these species were described, but data on their internal morphology are lacking. We provide the first description of the buccopharyngeal anatomy, chondrocranial morphology, and cranial, hyoid and hyobranchial musculature of the tadpole of D. decipiens. Larvae of D. decipiens are characterized by the absence of lingual papillae, presence of fan-like papilla on the buccal floor, presence of a single-element suprarostral cartilage, presence of a small triangular process at the basis of the processus muscularis, m. levator mandibulae lateralis inserted on the nasal sac, and m. subarcualis rectus II-IV with a single, continuous slip. Tadpoles are likely macrophagous, although not as specialized as those of other species of the genus, suggesting some degree of diversification on the feeding habits within Dendropsophus.
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Affiliation(s)
- Pedro H. S. Dias
- Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, São Paulo, São Paulo, Brazil
| | - Katyuscia Araujo-Vieira
- División Herpetología, Museo Argentino de Ciencias Naturales “Bernardino Rivadavia” – Conicet, Buenos Aires, Argentina
| | - Ana Maria P. T. de Carvalho-e-Silva
- Laboratório de Biossistemática de Anfíbios, Departamento de Zoologia, Universidade Federal do Estado do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Victor G. D. Orrico
- Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Salobrinho, Ilhéus, Bahia, Brazil
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