Morphological description of adult mouthparts of Urotrygon nana and U. rogersi (Urotrygonidae): Interspecific and intraspecific differences

Jessica Adriana Navarro-González, Uriel Rubio-Rodríguez, Paola Andrea Mejía-Falla, Víctor Hugo Cruz-Escalona

Research output: Contribution to journalScientific review

1 Citation (Scopus)

Abstract

© 2018 Universidad Autonoma Metropolitana. All rights reserved. Background. Teeth can change significantly in shape and size depending on their position in the jaw, age and sex of the organism. Sometimes due to the loss of these teeth, an incomplete description of the dental morphology exists for several batoid species, which makes it difficult to evaluate intraspecific and interspecific differences. Goals. Describe the differences in tooth morphology as well as the arrangement of teeth in adults of two species of batoids (Urotrygon nana and U. rogersi) distributed over soft bottoms of the continental shelf of the Mexican tropical Pacific. Methods. After collecting the jaws of ten adult individuals of U. nana and U. rogersi we counted the number of rows and series of the first functional row, and described the shape of the cartilage and teeth. In addition, we identified the type of heterodonty. Results. Similarities between the cartilage and teeth of both species were observed. In both sexes of U. nana monognatic heterodonty was observed, with three dental morphotypes in Palatocuadrado and two in Meckel's cartilage. U. rogersi has sexual heterodonty with just one morph. Conclusions. We believe it is necessary to expand the number of samples (taking into account the different stages of life), and generate additional ethological studies that provide information on the reproductive behavior of the species.
Original languageAmerican English
Pages (from-to)219-222
Number of pages196
JournalHidrobiologica
StatePublished - 1 Jan 2018
Externally publishedYes

Fingerprint

mouthparts
tooth
Tooth
teeth
Cartilage
cartilage
Jaw
jaws
reproductive behavior
Reproductive Behavior
Tooth Loss
morphotype
Urotrygon rogersi
Urotrygonidae
Urotrygon
gender
continental shelf
organisms

Cite this

@article{7acb2ae0e1c5463fa16b28ccc892c418,
title = "Morphological description of adult mouthparts of Urotrygon nana and U. rogersi (Urotrygonidae): Interspecific and intraspecific differences",
abstract = "{\circledC} 2018 Universidad Autonoma Metropolitana. All rights reserved. Background. Teeth can change significantly in shape and size depending on their position in the jaw, age and sex of the organism. Sometimes due to the loss of these teeth, an incomplete description of the dental morphology exists for several batoid species, which makes it difficult to evaluate intraspecific and interspecific differences. Goals. Describe the differences in tooth morphology as well as the arrangement of teeth in adults of two species of batoids (Urotrygon nana and U. rogersi) distributed over soft bottoms of the continental shelf of the Mexican tropical Pacific. Methods. After collecting the jaws of ten adult individuals of U. nana and U. rogersi we counted the number of rows and series of the first functional row, and described the shape of the cartilage and teeth. In addition, we identified the type of heterodonty. Results. Similarities between the cartilage and teeth of both species were observed. In both sexes of U. nana monognatic heterodonty was observed, with three dental morphotypes in Palatocuadrado and two in Meckel's cartilage. U. rogersi has sexual heterodonty with just one morph. Conclusions. We believe it is necessary to expand the number of samples (taking into account the different stages of life), and generate additional ethological studies that provide information on the reproductive behavior of the species.",
author = "Navarro-Gonz{\'a}lez, {Jessica Adriana} and Uriel Rubio-Rodr{\'i}guez and Mej{\'i}a-Falla, {Paola Andrea} and Cruz-Escalona, {V{\'i}ctor Hugo}",
year = "2018",
month = "1",
day = "1",
language = "American English",
pages = "219--222",
journal = "Hidrobiologica",
issn = "0188-8897",
publisher = "Department of Hydrobiology,Universidad Autonoma Metropolitana-Unidad Iztapalapa",

}

Morphological description of adult mouthparts of Urotrygon nana and U. rogersi (Urotrygonidae): Interspecific and intraspecific differences. / Navarro-González, Jessica Adriana; Rubio-Rodríguez, Uriel; Mejía-Falla, Paola Andrea; Cruz-Escalona, Víctor Hugo.

In: Hidrobiologica, 01.01.2018, p. 219-222.

Research output: Contribution to journalScientific review

TY - JOUR

T1 - Morphological description of adult mouthparts of Urotrygon nana and U. rogersi (Urotrygonidae): Interspecific and intraspecific differences

AU - Navarro-González, Jessica Adriana

AU - Rubio-Rodríguez, Uriel

AU - Mejía-Falla, Paola Andrea

AU - Cruz-Escalona, Víctor Hugo

PY - 2018/1/1

Y1 - 2018/1/1

N2 - © 2018 Universidad Autonoma Metropolitana. All rights reserved. Background. Teeth can change significantly in shape and size depending on their position in the jaw, age and sex of the organism. Sometimes due to the loss of these teeth, an incomplete description of the dental morphology exists for several batoid species, which makes it difficult to evaluate intraspecific and interspecific differences. Goals. Describe the differences in tooth morphology as well as the arrangement of teeth in adults of two species of batoids (Urotrygon nana and U. rogersi) distributed over soft bottoms of the continental shelf of the Mexican tropical Pacific. Methods. After collecting the jaws of ten adult individuals of U. nana and U. rogersi we counted the number of rows and series of the first functional row, and described the shape of the cartilage and teeth. In addition, we identified the type of heterodonty. Results. Similarities between the cartilage and teeth of both species were observed. In both sexes of U. nana monognatic heterodonty was observed, with three dental morphotypes in Palatocuadrado and two in Meckel's cartilage. U. rogersi has sexual heterodonty with just one morph. Conclusions. We believe it is necessary to expand the number of samples (taking into account the different stages of life), and generate additional ethological studies that provide information on the reproductive behavior of the species.

AB - © 2018 Universidad Autonoma Metropolitana. All rights reserved. Background. Teeth can change significantly in shape and size depending on their position in the jaw, age and sex of the organism. Sometimes due to the loss of these teeth, an incomplete description of the dental morphology exists for several batoid species, which makes it difficult to evaluate intraspecific and interspecific differences. Goals. Describe the differences in tooth morphology as well as the arrangement of teeth in adults of two species of batoids (Urotrygon nana and U. rogersi) distributed over soft bottoms of the continental shelf of the Mexican tropical Pacific. Methods. After collecting the jaws of ten adult individuals of U. nana and U. rogersi we counted the number of rows and series of the first functional row, and described the shape of the cartilage and teeth. In addition, we identified the type of heterodonty. Results. Similarities between the cartilage and teeth of both species were observed. In both sexes of U. nana monognatic heterodonty was observed, with three dental morphotypes in Palatocuadrado and two in Meckel's cartilage. U. rogersi has sexual heterodonty with just one morph. Conclusions. We believe it is necessary to expand the number of samples (taking into account the different stages of life), and generate additional ethological studies that provide information on the reproductive behavior of the species.

UR - https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85053006679&origin=inward

UR - https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85053006679&origin=inward

M3 - Scientific review

SP - 219

EP - 222

JO - Hidrobiologica

JF - Hidrobiologica

SN - 0188-8897

ER -