New record of bilateral hyperdontia in Carollia brevicauda (Chiroptera: Phyllostomidae)
New record of bilateral hyperdontia in Carollia brevicauda (Chiroptera: Phyllostomidae)
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短尾卡罗利亚 (Carollia brevicauda) 双侧多齿症的新纪录（翼手目：叶口虫科）
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
Abelardo Rodríguez
中科院分区：
文献类型：
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作者：
Diego Esquivel;Diana Camelo;Abelardo Rodríguez
蝙蝠的系统学和分类学部分基于牙齿的形态特征和牙齿配方。 然而，有时会出现牙齿异常，涉及牙齿形状和数量的变化，这可能导致错误的分类识别。 所有哺乳动物群体都报告了许多牙齿异常病例，尤其是蝙蝠，这是报道牙齿异常最多的群体。 本说明介绍了 Carollia brevicauda 的罕见双侧多牙病例，此前仅记录过少牙病例。 这种牙齿异常是在哥伦比亚梅塔阿卡西亚斯中部盆地里约瓜尤里巴的雄性丝状短尾蝙蝠标本中发现的。 该异常个体在上颌骨的每颗正常外门牙上都附有一颗额外的门牙，并具有独立的牙槽，总共有 6 颗上门牙，比正常人多了两颗。 额外的牙齿的形态类似于该物种的外切牙特征，短且圆形，位于犬齿和头部两侧的第二（外）上切牙之间。 同一物种的 66 个个体中没有其他样本显示出牙齿异常。 这是短尾鲵双侧多牙的首次记录。 这种牙齿异常可能是由于该个体的孤立突变所致，因为在研究区域内没有发现其他具有此类异常的标本。
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.
影响因子：
4.6
作者：
H. R. Dassule;P. Lewis;M. Bei;R. Maas;Andy McMahon
通讯作者：
H. R. Dassule;P. Lewis;M. Bei;R. Maas;Andy McMahon