Mohamed Reda
Department of Basic Veterinary Sciences, School of Veterinary Medicine, Faculty of Medical Sciences, The University of the West Indies, St. Augustine, Trinidad and Tobago.
Anatomy and Embryology Department, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef 62511, Egypt.
Vet Sci. 2018 Apr 23;5(2):44. doi: 10.3390/vetsci5020044.
Common opossums () are found throughout the Caribbean island of Trinidad and Tobago. The present work was conducted on 10 skulls and mandibles of the common opossum to describe the osteology and foramina of these skulls and mandibles grossly and radiographically. The information that is garnered can be used to detect, diagnose, and treat head affections, as well as for comparative studies with the skulls and mandibles of other similar species. The skulls and mandibles were prepared and cleaned using standard method. All of the characteristic features of various standards views of the skulls bones, including dorsal, lateral, caudal and midsagittal, and the lateral and caudal views of the mandibles as well as the foramina of the skulls and mandibles were described and discussed. Each skull was divided into long facial and short cranial regions. No supraorbital foramen was observed in the skulls. The tympanic bulla was absent while there was the tympanic process of the alisphenoid. The temporal process of the zygomatic bone, zygomatic process of maxilla, and zygomatic process of the squamosal bone formed the zygomatic arch. The dental formula was confirmed. The bones and foramina of the skull and mandible were similar to other marsupial species and were homologue to that of other mammals.
普通负鼠分布于特立尼达和多巴哥的整个加勒比岛屿。本研究对10个普通负鼠的头骨和下颌骨进行了研究，旨在大体和影像学上描述这些头骨和下颌骨的骨学特征及孔道情况。所收集到的信息可用于检测、诊断和治疗头部疾病，也可用于与其他类似物种的头骨和下颌骨进行比较研究。使用标准方法对头骨和下颌骨进行了处理和清洁。对头骨骨骼各标准视图（包括背侧、外侧、尾侧和矢状中面）的所有特征，以及下颌骨的外侧和尾侧视图以及头骨和下颌骨的孔道进行了描述和讨论。每个头骨被分为长面部和短颅部区域。在这些头骨中未观察到眶上孔。鼓泡缺失，但存在翼蝶骨的鼓突。颧骨的颞突、上颌骨的颧突和鳞骨的颧突形成颧弓。确认了齿式。头骨和下颌骨的骨骼及孔道与其他有袋类物种相似，且与其他哺乳动物的骨骼及孔道同源。
