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Dorsal, ventral and laterial views of a muskrat skull. Muskrat is an invasive species in Mongolia, which came to Mongolia through Russia. Later, it was introduced into Khas-Us Lake in western...
Common Muskrat Ondatra zibethicus. The head and body length of the single species O. zibethicus is 229-325 mm, tail length is about 180-295 mm, and adult weight is 681-1,861 g. The coloration of the upper parts of the pelage are dominated by the long, shiny guard hairs which provide a protective layer over the soft dense underfur.
There are many parts of a skull. Below are definitions for vocabulary words you may encounter with this key: Eyes: Forward-facing eyes indicate the mammal is likely a predator while eyes on the side indicate the mammal is likely prey. Rostrum: A long rostrum and/or well developed nasal cavity indicate a good sense of smell.
Round-tailed Muskrat (Neofiber alleni) • Noticeably wider skull than the others. 2. Large, wide, flat eye sockets. 3. Upper rim of eye socket has a very prominent protrusion (nearly a right angle) into the socket. 4. No cranial ridges. OTHER MEDIUM AND BIG THINGS Marsh Rabbit (Sylvilagus palustris) & Eastern Cottontail Rabbit (S. floridanus) 1.
23 kwi 2004 · Ondatra ziebethicus - Muskrat. Skull Pictures: Anterior Mandible Dorsal Posterior Lateral. Nomenclature: Ondatra ziebethicus has been known by many common names including the following provided by Bluett (1984): ∙Muskrat ∙Marsh Hare
Identify the bones and important features of the mammal skull. Distinguish among monotreme, marsupial, and placental mammal skulls based on morphology. Explore the evolution of the sense organs, with a focus on the auditory system.
Skull (l ateral surface) (Figs. 1, 14B-1 through 14B-6) The main bones of the skull we will focus on include: the frontal (over the forehead), temporal (over the temples), the maxilla (upper jaw), palatine (caudal part of hard palate), mandible (lower jaw), basioccipital (caudal part of ventral braincase), and basisphenoid (rostral part of ...
