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| Автори: | , , , , , , |
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| Формат: | Recurso digital |
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Zenodo
2017
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| Предмети: | |
| Онлайн доступ: | https://doi.org/10.5281/zenodo.7859562 |
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Зміст:
- <p><b><i>Melomys</i> Thomas 1922a</b></p><p><b>Type species</b></p><p><i>Melomys rufescens</i> (Alston 1877), by original designation.</p><p><b>Diagnosis</b></p><p><b>p</b> = <b>p-value. (cp</b> <0.001). Df, degree of freedom. F, F statistic provided by R. The symbols “:” indicates tested interactions between explanatory variables.</p><p><i>Melomys</i> is a murid genus classified in the subfamily Murinae (<i>sensu</i> Musser and Carleton 2005), within the tribe Hydromyini (Aplin and Helgen 2010), in the “ <i>Uromys</i> Division” of Musser and Carleton (2005). Species within this genus are small to medium-sized (HB max 190 mm) and are characterized by external characters (Tables 4 and 5) including (1) raised tail scales, (2) one or three short hairs per tail scale, (3) a broad hindfoot, and (4) a long first hindfoot digit reaching the origin of digits 2–4. To diagnose this genus Menzies (1996) used the following set of craniodental characters: (1) broad skull with a convex profile, (2) a palate terminating before the posterior end of the molar row, (3) a zygomatic plate sloping forward at the shoulder, (4) nasal bones that do not significantly extend past the premaxillae, (5) large auditory bullae compared to species of <i>Paramelomys</i> (cf. Menzies 1996), (6) narrow and deep pterygoid fossae, (7) lateral extension of the parietal bone, (8) a wide alisphenoid strut that is fused to the alisphenoid canal and foramen ovale, (9) very well-developed lambdoid crests which curl forward over the squamoso-mastoid foramen, (10) a carotid arterial circulation that is primitive for murine rodents, as opposed to the derived pattern seen in <i>Mammelomys</i> (11) a large M 3 compared to <i>Paramelomys</i>, with an antero-internal cusp always present, and (12) only two pairs of inguinal teats (mammary formula 0 + 2 = 4). The <i>Melomys</i> population from Halmahera is characterized by small to medium body size in the genus (Weight range = 110–141 g), and has all of the diagnostic characters listed above.</p><p><b>Legend similar to that of Table 1. The symbol “:” indicates tested interactions between explanatory variables. (ap</b> <<b>0.05, bp</b> <0.01).</p><p><i>Content and distribution</i>. The genus <i>Melomys</i> contains 23 species (Musser and Carleton 2005). It is distributed in eastern and northern Australia, throughout New Guinea, and in adjacent archipelagos, from the Moluccas in the west to the Solomon Islands in the east (Helgen 2003, Breed and Aplin 2008).</p>