New record of bilateral hyperdontia in Carollia brevicauda (Chiroptera: Phyllostomidae)

Diego Esquivel-Melo, Diana Camelo-Pinzon, Abelardo Rodriguez-Bolaños


Systematics and taxonomy of bats is based in part on the morphological characteristics of the teeth and dental formulas.  However, sometimes dental abnormalities appear that involve changes in the shape and number of teeth which can lead to erroneous taxonomic identifications.  Numerous cases of dental anomalies have been reported for all groups of mammals, especially bats, the group with the most dental anomalies reported.  This note presents a rare case of bilateral hyperdontia in Carollia brevicauda, for which only cases of oligodontia had previously been registered.  The dental anomaly was found in a male specimen of silky short-tailed bat from the middle basin Rio Guayuriba, Acacias, Meta, Colombia.  The unusual individual shows an additional incisor annexed to each normal external incisor in the maxilla, with separate alveoli, for a total of 6 upper incisors, two more than normal.  The extra teeth have a morphology similar to the external incisors characteristic of the species, short and rounded, and are located between the canine and the second (external) upper incisor on each side of the head.  No other specimen among 66 individuals of the same species showed a dental anomaly.  This is the first record of bilateral hyperdontia for C. brevicauda.  This dental anomaly may be due to an isolated mutation in this individual, because no other specimens with this type of anomaly were found in the study area.

Palabras clave

Anomalía dental; dientes supernumerarios; Incisivos; Polyodontia; quirópteros.

Texto completo:

PDF (English) HTML (English)


ANGELICI, F. M., AND L. LUISELLI. 1999. Extra teeth and dental anomalies in the crested porcupine Hystrix cristata, from Sicily. Acta Theriologica 44:219-223.

AZORIT, C., MUÑOZ-COBO, J., AND M. ANALLA. 2002. Abnormal teeth in the Spanish red deer (Cervus elaphus hispanicus). Zeitschrift für Jagdwissenschaft 48:252-260.

CIRRANELLO, A., SIMMONS, N. B., SOLARI, S., AND R. J. BAKER. 2016. Morphological diagnoses of higher-level phyllostomid taxa (chiroptera: phyllostomidae). Acta Chiropterologica 18:39-71.

DASSULE, H. R., LEWIS, P., BEI, M., MAAS, R., AND A. P. MCMAHON. 2000. Sonic hedgehog regulates growth and morphogenesis of the tooth. Development 127:4775-4785.

GOMERČIĆ, T., GUŽVICA, G., DURAS, M., KUSAK, J., SINDIČIĆ, M., AND D. HUBER. 2009. Variation in teeth number, teeth and skull disorders in Eurasian lynx, Lynx lynx from Croatia. Folia Zoological 58:57-65.

LANZA, B., RICCUCCI, M., AND U. FUNAIOLI. 2008. An interesting case of polyodontia in Epomophorus wahlbergi, with a review of this dental anomaly in bats (Chiroptera). Lynx series nova 39:109-127.

LIBARDI, G. S., AND A. R. PERCEQUILLO. 2014. Supernumerary teeth in Necromys lasiurus (Rodentia, Cricetidae): the first record in sigmodontinae. Mastozoología neotropical 21:219-229.

LOCH, C., SIMÕES-LOPES, P. C., AND C. J. DREHMER. 2010. Numerical anomalies in the dentition of southern fur seals and sea lions (Pinnipedia: Otariidae). Zoologia (Curitiba) 27:477-482.

LOPEZ-AGUIRRE, C. 2014. Dental anomalies: New cases of Artibeus lituratus from Colombia and a review of these anomalies in bats (Chiroptera). Chiroptera Neotropical 20:1271-1279.

MARTIN, G. M. 2007. Anomalías en la dentición de Dromiciops gliroides (Microbiotheria, Microbiotheriidae), Caenolestes fuliginosus and Rhyncholestes raphanurus (Paucituberculata, Caenolestidae). Revista Chilena de Historia Natural 80:393-406.

MORRIS, P. 1972. A review of mammalian age determination methods. Mammal Review 2:69-104.

RAMÍREZ-PULIDO, J., AND C. MUDESPACHER. 1987. Formulas dentarias anormales en algunos murciélagos mexicanos. Acta Zoológica Mexicana (n. s.) 23:1-54.

RODRÍGUEZ ROMERO, F. J., AND S. CERVIÑO FERRADANES. 2009. Múltiples dientes supernumerarios distomolares. Avances en Odontoestomatología 25:319-325.

RUI, A. M., AND C. J. DREHMER. 2004. Anomalías e variações na fórmula dentária em morcegos do gênero Artibeus Leach (Chiroptera, Phyllostomidae). Revista Brasileira de Zoología 21:639-648.

WOLSAN, M. 1984. The origin of extra teeth in mammals. Acta Theriologica 29:128-133.

Enlaces refback

  • No hay ningún enlace refback.


THERYA es publicada por la Asociación Mexicana de Mastozoología A. C.  Se distribuye bajo una Licencia de Creative Commons Atribución-NoComercial-SinDerivar 4.0 Internacional.

DERECHOS DE AUTOR Y DERECHOS CONEXOS, THERYA es una publicación digital cuatrimestral editada por la Asociación Mexicana de Mastozoología A. C.  Hacienda Vista Hermosa 107, Colonia Villa Quietud, Coyoacan 04960.  Distrito Federal, México.  Telefono (612) 123-8486,  Editor responsable: Dr. Sergio Ticul Álvarez Castañeda (  Reservas de Derechos al Uso Exclusivo No. 04-2009-112812171700-102, ISSN: 2007-3364 ambos otorgados por el Instituto Nacional de Derechos de Autor.  Responsable de la última actualización de este número, Unidad de informática de la Asociación Mexicana de Mastozoología A. C.  Dr. Sergio Ticul Álvarez Castañeda.  Instituto Politécnico Nacional 195.  La Paz, Baja California Sur, C. P. 23096.  Tel 612 123 8486.