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Fig. 51 in Systematic Reviews Of New Guinea Coccymys And ''Melomys'' Albidens (Muridae, Murinae) With Descriptions Of New Taxa
Fig. 51. Occlusal views of right maxillary molar rows. Left: Abeomelomys sevia (AMNH 192119; CLM1–3 5 5.8 mm) from the Okapa area, Purosa, Papua New Guinea. Middle: Pogonomelomys mayeri (AMNH 101962; CLM1–3 5 6.5 mm) from Kratke Range, Kassam, Papua New Guinea. Right: Pogonomelomys bruijnii (AMNH193306; CLM1–3 5 7.4 mm) from Eramboe, near Merauke, western New Guinea. Compare these toothrows and those in figure 52 with the molar rows of Coccymys ruemmleri and Brassomys albidens shown in figures 11 and 12.
Fig. 38 in Systematic Reviews Of New Guinea Coccymys And ''Melomys'' Albidens (Muridae, Murinae) With Descriptions Of New Taxa
Fig. 38. Reproduction of map covering region of Mt. Dayman worked by the Fourth Archbold Expedition to New Guinea, 1953 (originally published in Brass, 1956). The holotype of Coccymys kirrhos was captured at locality 4, the ''Top Camp,'' at 2230 m. This was the highest of six camps established along a transect anchored at Baiawa, Moi Biri Bay, and extending through the adjacent coastal plain on to the northern slopes of Mt. Dayman. The Cape Vogel Peninsula and Goodenough Island in the D'Entrecasteaux Archipelago were also surveyed during the same expedition, but our focus is on collections of mammals made along the transect from the coastal lowlands (beginning with camp 3) to near the summit of Mt. Dayman. The numbered camps below correspond to the numbered symbols on the map; the physical settings of the camps along with their floristic environments are reported by Brass (1956): 3, Baiawa, 30 m: May 6–11, September 7–9; 4, top camp, north slopes of Mt. Dayman, 2230 m, collections were made up to 2700 m, May 17 to June 19; 5, number 2 camp, north slopes of Mt. Dayman, 1550 m, June 20 to July 12; 6, number 3 camp ''Bottom Camp,'' north slopes of Mt. Dayman, 700 m, July 13–26; 7, Biniguni camp, Gwariu River, 200 m, July 27 to August 13; 8, Peria Creek, Kwagira River, 50 m, August 14 to September 6.
Fig. 36 in Systematic Reviews Of New Guinea Coccymys And ''Melomys'' Albidens (Muridae, Murinae) With Descriptions Of New Taxa
Fig. 36. ''Top Camp'' at 2230 m on Mt. Dayman, in a deep and sheltered grassy hollow on the western bank of the Atairo near its head. Slope in lower right is covered with grass and ferns, mossy (lower montane) tall forest (see fig. 27) edges the stream, and a shrubby ecotone separates grass from forest. The three specimens of C. kirrhos were trapped in the ''herbaceous forest margin,'' along the ''forest edge,'' and in ''grassland,'' respectively; whether near camp or elsewhere was not recorded, nevertheless the habitat around camp provides a visual appreciation of the kinds of places they were collected. May 17–June 19, 1953.
Fig. 33 in Systematic Reviews Of New Guinea Coccymys And ''Melomys'' Albidens (Muridae, Murinae) With Descriptions Of New Taxa
Fig. 33. Specimen scores representing two species of Coccymys projected on first and second components extracted from principal components analyses. Graph A: C. shawmayeri (N 5 9) from Mt. St. Mary (left-pointing filled triangle) and Bulldog Road (right-pointing filled triangle) compared with C. kirrhos (N 5 7) from Mt. Dayman (cross) and Dumae Creek in the Maneau Range (hollow triangle), Mt. Simpson (half-filled circle), Smith's Gap (left-pointing hollow triangle), and Bulldog Road (right-pointing hollow triangle). A filled pentagon identifies the holotype of shawmayeri, and an arrow points to score for holotype of kirrhos. Graph B: C. shawmayeri from Mt. St. Mary (left-pointing filled triangle) and Bulldog Road (right-pointing filled triangle) compared with C. kirrhos from Smith's Gap (left-pointing hollow triangle), and Bulldog Road (right-pointing hollow triangle). A filled pentagon identifies the holotype of shawmayeri. See table 18 for correlations and percent variance.
Fig. 30 in Systematic Reviews Of New Guinea Coccymys And ''Melomys'' Albidens (Muridae, Murinae) With Descriptions Of New Taxa
Fig. 30. Ratio diagram illustrating some proportional relationships in cranial and dental dimensions between samples of adult Coccymys. The standard is the type series of C. ruemmleri from Lake Habbema (N 5 15; includes the holotype), which is contrasted with the sample of C. kirrhos from Mt. Dayman (N 5 3; includes the holotype). Data are derived from values for mean, standard deviation, and sample size of variables listed in tables 4 and 6. For each measurement, the absolute value of the mean, and plus or minus two standard errors of the mean, were converted to logarithms. Next, the logarithm of the mean of the standard was subtracted from the logarithms of the mean, and plus or minus two standard errors, of the comparative sample. Measurements larger than the standard are thus represented by positive values, those smaller by negative values. The lines connect sample means, and the bracketing symbols represent ± 2 SE of the mean. A sample having the same proportions as the standard will be represented by mean values on a line parallel to that of the standard regardless of absolute size. Also, if values for the sample being compared with the standard are similar in absolute size, they will be close together on the diagram. If proportions between any of the measured dimensions are similar, the positions of their points relative to each other on the horizontal scale will be similar.
Fig. 28 in Systematic Reviews Of New Guinea Coccymys And ''Melomys'' Albidens (Muridae, Murinae) With Descriptions Of New Taxa
Fig. 28. Alpine tussock grassland in valley just below Lake Aunde bordered by subalpine (upper montane) forest down the valley. ''Alpine grassland, as original primary vegetation, occupied the mountain above the forest zone, and below that ground too wet or too cold for forest. At camp level, in the valley bottom down to 10,900 feet [3300 m], and up to variously 13,000 [3939 m] to 13,500 feet [4091 m] on open slopes, was tussock grassland. A short-grass community, already in evidence at camp level and below, replaced the tussock grasses at higher elevations'' (Brass, 1964: 188). June 8–29, 1959.
Fig. 26. Pengagl camp, 2770 m in Systematic Reviews Of New Guinea Coccymys And ''Melomys'' Albidens (Muridae, Murinae) With Descriptions Of New Taxa
Fig. 26. Pengagl camp, 2770 m, east slopes of Mt. Wilhelm. This camp was ''in primary forest in general little disturbed except by exploitation for timber for house frames and garden fences, and bark for house walls, by the local people, and the rootings made by pigs of the Chimbu on easily accessible ground up to several hundred feet in altitude above our camp. … Camp was so closed in by forest that the only distant views were of alpine heights up the creek and a glimpse of mountains near Bundi Gap, on the Bismarck Range at the head of the Chimbu'' (Brass, 1964: 189–190). This is the lowest altitude at which Coccymys shawmayeri was taken on Mt. Wilhem. June 29 to July 31, 1959.
Fig. 23 in Systematic Reviews Of New Guinea Coccymys And ''Melomys'' Albidens (Muridae, Murinae) With Descriptions Of New Taxa
Fig. 23. Site of the mountain base camp at 3560 m situated in a sheltered pocket in a long, grassy, north-south valley, about 7 km northeast of the summit of Mt. Wilhelmina on the northern slopes of the Snow Mountains. ''The camp was on a long slope of landslip debris covered with grass tussocks. Generally, the slopes were considerably disturbed by slips and subsidences, and the soil peaty and immature'' (Archbold et al., 1942: 324). The camp was surrounded by ''high timbered ridges on both sides and a wet bottom in which were some open swamps to which innumerable slender grass tufts growing erect in the water gave the appearance of rice fields. Only one Libocedrus tree was seen after entering the valley. The limit of the conifers had been passed. The forests were getting lower, much cut by glades and the tops of nearby 3900 m. and 4000 m. peaks were without trees'' (p. 324). Specimens of Coccymys ruemmleri are from this altitude (see gazetteer). August–September 1938.
Fig. 22 in Systematic Reviews Of New Guinea Coccymys And ''Melomys'' Albidens (Muridae, Murinae) With Descriptions Of New Taxa
Fig. 22. Open upper montane forest at 3300 m near Lake Habbema, dominated by Podocarpus papuanus and Libocedrus sp. and a Rhododendron forming much of the dense undergrowth. This vegetation was described as open subalpine forest by Brass (1941: 320) who noted that closed forest ''occupied but a small part of the wooded ridges in the Lake Habbema area. The prevailing tree communities of the sandstone ridges, which approached the open grasslands of the valleys and hollows in extent, were at best an open forest of smut-darkened Libocedrus and Podocarpus papuanus, and on basal slopes often no more than a low savanna stand of Libocedrus alone.'' July–September 1938.
Fig. 21. Lake Habbema, 3225 m in Systematic Reviews Of New Guinea Coccymys And ''Melomys'' Albidens (Muridae, Murinae) With Descriptions Of New Taxa
Fig. 21. Lake Habbema, 3225 m, with Mt. Wilhelmina in the background. Closed and open upper montane rain forest (''subalpine forest,'' Brass, 1941) covers the ridges; grassland dominates the basal slopes of the ridges, hollows, and glades in the forest, and broad valleys; marsh rings the lake. From the environs around Lake Habbema come the holotypes of Coccymys ruemmleri and Brassomys albidens. July– September 1938.
Fig. 20 in Systematic Reviews Of New Guinea Coccymys And ''Melomys'' Albidens (Muridae, Murinae) With Descriptions Of New Taxa
Fig. 20. Bele River camp at 2800 m, 9 km northeast of Lake Habbema. Upper montane rain forest (''mossy forest'') viewed across an open stream. ''Situated high in the upper drainage basin of the Bele River beside a well-used path which led from the inhabited regions up to Lake Habbema, this camp was on a small stream. It was in heavily forested country consisting of parallel spur ridges and very narrow alleys or ravines, rising rapidly toward the highlands.'' Samples of Coccymys ruemmleri and five of the six known specimens of Brassomys albidens were obtained at this camp. October–November 1938.
Fig. 32 in Systematic Reviews Of New Guinea Coccymys And ''Melomys'' Albidens (Muridae, Murinae) With Descriptions Of New Taxa
Fig. 32. Specimen scores projected on the first and second components extracted from principal components analyses. Coccymys shawmayeri (N 5 53) from the Telefomin area (filled diamond), Mt. Hagen (reclining cross), Mt. Wilhelm (filled triangle), Bulldog Road in the Wau region (filled rightpointing triangle), and Mt. St. Mary (filled left-pointing triangle) is compared with C. kirrhos (N 57) from Mt. Dayman (cross) and Dumae Creek in the Maneau Range (hollow triangle), Mt. Simpson (half-filled circle), Smith's Gap (left-pointing hollow triangle), and Bulldog Road in the Wau area (right-pointing hollow triange). A filled pentagon identifies the holotype of shawmayeri, and an arrow points to score for holotype of kirrhos. See table 17 for correlations and percent variance.
Fig. 18 in Systematic Reviews Of New Guinea Coccymys And ''Melomys'' Albidens (Muridae, Murinae) With Descriptions Of New Taxa
Fig. 18. Inside the forest on hillsides at the Bele River camp, 2200 m. See description in text. November–December 1938.
Fig. 50 in Systematic Reviews Of New Guinea Coccymys And ''Melomys'' Albidens (Muridae, Murinae) With Descriptions Of New Taxa
Fig. 50. Views of crania and dentaries. Top: Pogonomelomys mayeri (AMNH 101954), an adult from The Gebroeders, Weyland Range, 5000 ft. Bottom: Abeomelomys sevia (AMNH 222211), an adult from Kepilam, 2400 m, in Papua New Guinea. X2. Compare these with the skulls of Coccymys ruemmleri and Brassomys albidens pictured in figures 9 and 10, respectively.
Fig. 35 in Systematic Reviews Of New Guinea Coccymys And ''Melomys'' Albidens (Muridae, Murinae) With Descriptions Of New Taxa
Fig. 35. Western summits of Mt. Dayman viewed from 2230 m over the Gwariu Gorge near the ''Top Camp.'' This is the view Brass and his crew saw after emerging from primeval beech forest on the way to the ''Top Camp'': ''From the 2310-meter high point on the trail, where the view took in several square miles of terrain above the 2200-meter level, including the head of the Gwariu River Valley, it could be seen that the upper parts of the whole mountain had been greatly altered by the burning of forests which must formerly have occupied all but a small fraction of the total area'' (Brass, 1956: 111). May 17–June 19, 1953.
Fig. 41 in Systematic Reviews Of New Guinea Coccymys And ''Melomys'' Albidens (Muridae, Murinae) With Descriptions Of New Taxa
Fig. 41. Enlargements (drawn to scale) of zygomatic plates drawn from holotypes. Left: Brassomys albidens (AMNH 150821). Right: Coccymys ruemmleri (AMNH 150669). Note the contrasts in width of the zygomatic plate and origin for the superficial masseter muscle (arrows)—a knoblike projection in B. albidens and oblong roughened surface in C. ruemmleri.
Fig. 49 in Systematic Reviews Of New Guinea Coccymys And ''Melomys'' Albidens (Muridae, Murinae) With Descriptions Of New Taxa
Fig. 49. Altitudinal distribution of 2484 specimens representing 79 species of mammals obtained on the north slopes of the Snow Mountains during the 1938–1939 Archbold Expedition to western New Guinea. See figure 48 and text.
Fig. 19 in Systematic Reviews Of New Guinea Coccymys And ''Melomys'' Albidens (Muridae, Murinae) With Descriptions Of New Taxa
Fig. 19. Interior of the ''magnificent tall'' primary beech forests at 2450 m described by Archbold et al. (1942: 260), 18 km northeast of Lake Habbema above the Bele River camp (2200 m). November– December 1938.
Fig. 42 in Systematic Reviews Of New Guinea Coccymys And ''Melomys'' Albidens (Muridae, Murinae) With Descriptions Of New Taxa
Fig. 42. Contrasts in configuration of dentaries between holotypes. Left: Brassomys albidens. Right: Coccymys ruemmleri. Arrows indicate end of incisor capsule, which is encased within the dentary in B. albidens and undetectable on the labial surface, but forms a prominent labial projection in C. ruemmleri.
Fig. 46 in Systematic Reviews Of New Guinea Coccymys And ''Melomys'' Albidens (Muridae, Murinae) With Descriptions Of New Taxa
Fig. 46. Looking down into primary montane forest (''mossy forest'') on a slope at 2960 m above the Bele River camp at 2800 m. ''These stunted forests carried, in association with tangled wiry-stemmed orchids and a few ferns, a distinctive shrubbery undergrowth of chiefly small-leaved Xanthomyrtus klossii, Rapanea sp., and Vaccinium debilescens'' (Archbold et al., 1942: 264). October–November 1938.
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