319 research outputs found
A new species of Boulengerula Tornier, 1896 (Amphibia: Gymnophiona: Herpelidae) from Kenya and the " rediscovery " of Boulengerula denhardti
No full textWilkinson, Mark, Malonza, Patrick K., Campbell, Patrick, Loader, Simon P. (2017): A new species of Boulengerula Tornier, 1896 (Amphibia: Gymnophiona: Herpelidae) from Kenya and the " rediscovery " of Boulengerula denhardti. Zootaxa 4286 (4): 525-534, DOI: https://doi.org/10.11646/zootaxa.4286.4.
Callulina shengena Loader & Gower & Ngalason & Menegon 2010, SP. NOV.
No full textCALLULINA SHENGENA SP. NOV. <p>(FIGS 1, 3, 5B, 6–8, TABLE 1, 2)</p> <p> <i>Holotype:</i> MTSN 9285, adult (gravid) female, collected at Chome Forest Reserve, South Pare Mountains (04°17′42.907″S, 37°56′18.612″E) by MM on 12 March 2008. This specimen has been sequenced for <i>12S</i> and <i>16 S</i>. Good condition, with midventral incision into coelom, and incision around left and right tympanic region.</p>Published as part of <i>Loader, Simon P., Gower, David J., Ngalason, Wilirk & Menegon, Michele, 2010, Three new species of Callulina (Amphibia: Anura: Brevicipitidae) highlight local endemism and conservation plight of Africa's Eastern Arc forests, pp. 496-514 in Zoological Journal of the Linnean Society 160 (3)</i> on page 502, DOI: 10.1111/j.1096-3642.2010.00652.x, <a href="http://zenodo.org/record/5494130">http://zenodo.org/record/5494130</a>
Three new species of Callulina (Amphibia: Anura: Brevicipitidae) highlight local endemism and conservation plight of Africa's Eastern Arc forests
No full textLoader, Simon P., Gower, David J., Ngalason, Wilirk, Menegon, Michele (2010): Three new species of Callulina (Amphibia: Anura: Brevicipitidae) highlight local endemism and conservation plight of Africa's Eastern Arc forests. Zoological Journal of the Linnean Society 160 (3): 496-514, DOI: 10.1111/j.1096-3642.2010.00652.x, URL: http://dx.doi.org/10.1111/j.1096-3642.2010.00652.
FIGURE 7 in A remarkable new species of Callulina (Amphibia: Anura: Brevicipitidae) with massive, boldly coloured limb glands
No full textFIGURE 7. Similarity in enlarged limb glands in Callulina meteora sp. nov. (above) and Nectophrynoides viviparus (below).Published as part of Menegon, Michele, Gower, David J. & Loader, Simon P., 2011, A remarkable new species of Callulina (Amphibia: Anura: Brevicipitidae) with massive, boldly coloured limb glands, pp. 15-26 in Zootaxa 3095 on page 24, DOI: 10.5281/zenodo.20244
FIGURE 6 in Two new species of Callulina (Amphibia: Anura: Brevicipitidae) from the Nguru Mountains, Tanzania
No full textFIGURE 6. Dorsal, ventral and laterial views of the paratype (MTSN 5017) of Callulina kanga sp. nov.Published as part of Loader, Simon P., Gower, David J., Müller, Hendrik & Menegon, Michele, 2010, Two new species of Callulina (Amphibia: Anura: Brevicipitidae) from the Nguru Mountains, Tanzania, pp. 26-42 in Zootaxa 2694 on page 35, DOI: 10.5281/zenodo.19964
Description of two Werneria tadpoles from Cameroon (Amphibia: Anura: Bufonidae)
No full textHirschfeld, Mareike, Barej, Michael F., Loader, Simon P., Rödel, Mark-Oliver (2012): Description of two Werneria tadpoles from Cameroon (Amphibia: Anura: Bufonidae). Zootaxa 3172 (1): 65-68, DOI: 10.11646/zootaxa.3172.1.5, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.3172.1.
Callulina hanseni Loader, Gower, Müller & Menegon, 2010, sp. nov.
No full textCallulina hanseni sp. nov. Figures 1, 2, 3, 4; Tables 1, 2, 3. Callulina sp. 2 Menegon et al. (2008) p. 114, appendix 1, and table 3, 4. Holotype. BMNH 2008.130 (Field Tag MW 6960), an adult female, BMNH 2008.17. Collected on the Maskati side of the Nguru South Forest Reserve, Tanzania, 06º 03' 51.1 "S, 37 º 30 ' 33.3 "E, 1790 m (Figure 1 b) by David Gower, Roy Hinde, Simon Loader, Hendrik Müller, Maria Perkins, and Mark Wilkinson on January 19 th 2008. Paratypes. 13 specimens: BMNH 1983.45 collected near Maskati Mission 1900m West side of Nguru Mountains, Mwomero District, Morogoro Region, Tanzania by Jan Keilland in Sept. 1982. BMNH 2008.127 - 128, 2008.131 - 134, 2008.136 - 138 collected on the Maskati side of the Nguru South Forest Reserve, Mwomero District, Morogoro Region, Tanzania, 06º 03' 51.1 "S, 37 º 30 ' 33.3 "E, 1790 m by David Gower, Roy Hinde, Simon Loader, Hendrik Müller, Maria Perkins, and Mark Wilkinson between January 19 th– 21 st 2008. MTSN 8138, 8140 and 8192 collected on the Maskati side of the Nguru South Forest Reserve, Mwomero District, Morogoro Region, Tanzania, 06º 03' 51.1 "S, 37 º 30 ' 33.3 "E, 1790 m by Michele Menegon between October 26 th– 30 th 2004 (see Menegon et al. 2008, Table 1, Nguru Site 1 ‘Maskati’). BMNH 2008.136 and MTSN 8138 and 8140 have been sequenced for partial fragments of 12 S, 16 S, and cytb (see Genetic difference section and Appendix 1). Diagnosis. The new species of Callulina is assigned to the brevicipitid genus based on the following characteristics: Truncated or expanded terminal phalanges (simple in Spelaeophyrne, Probreviceps, Breviceps, and Balebreviceps); single posterior denticulated row in the palate of Callulina (two denticulated rows in Probreviceps, glandular mass in Breviceps). A large, robust Callulina. SUL 20.6– 42.5mm. TL: SUL ratio 36–42 %. Tympanum present, 0.25– 0.60 % of SUL. Tympanum to eye distance 1.2 – 3.0 mm, 0.04–0.07 % of SUL. Fingertips expanded (width of subarticular tubercle> 0.78–0.94 % of the width of fingertips). Dark brown dorsally, and ventrally, with distinctive darker brown colouration on anterior margin of chin against cream colouration. Legs have large continuous glandular ridge on both tibiofibulae and tarsal joints. Callulina hanseni differs from C. laphami and C. shengena in the presence of a tympanum, more granular skin, expanded fingertips, and absence of interocular patterning. Callulina hanseni differs from C. dawida in having expanded fingertips. Callulina hanseni differs from C. stanleyi and C. kisiwamsitu in the presence of large continuous glands on legs. Callulina hanseni differs from C. kreffti in the degree of expansion of fingertips and the presence of large continuous glands on legs (see also Table 2 and Figure 4 for comparative measures). The distinctiveness of C. hanseni from other Callulina species is also supported by its disjunct distribution, and mtDNA sequence data (see Genetic difference). The extent of the expansion of the fingertips is, in general, a useful character to distinguish Callulina species but some specimens of some species fall outside the main range of variation and might question the usefulness of this character. Some specimens of C. kreffti (BMNH 2000 - 189, 2000 - 196, 2005.1508, FMNH 250471) have> 0.75 % width at first subarticular, relative to expansion at fingertip. Also C. stanleyi FMNH 251384 has larger expansion of finger tips ( 0.00096), although relative proportions of limbs are not significantly different (tibia, tarsus, and humerus, student t-test = 0.048); and the position of the tympanum relative to the eye (ttest => 0.046) is significantly different. Colour in life. A brown or dark brown animal with scattered black mottlings (especially in smaller animals) and white tipped warts on flanks, throat and belly. Wide paler dorsolateral bands can be present. Iris is bright orange. See Figure 3. Advertisement call. No calls were recorded for this species. Natural history. The specimen collected by Jan Keiland in 1982 was found inside a rotting log in moist evergreen forest. The new series collected in 2004 (MTSN) and 2008 (BMNH) were mainly collected from branches both below and above head height. This included specimens located low down on small shrubs but also climbing to a great heights (observed and collected ca. 10 m above ground) on branches, tree trunks and bare rock in montane forest (see Figure 9). All specimens were collected in primary montane rainforest. Conservation status. Callulina hanseni has been found only in the Nguru South Forest Reserve at an elevation of 1790m and above (Figure 1 c). This distribution comprises a maximum distributional area of less than 100km 2, qualifying this species as critically endangered (CR B 1 b (iii)) under IUCN criteria. The conservation status will need to be re-evaluated if specimens are discovered below 1790m. Population density is unknown. The distribution pattern is similar to that seen in the recently described species Arthroleptis nguruensis (Poynton et al. 2008), and is indicative of a distinct Nguru upper montane fauna. Other undescribed taxa also appear to be confined to this upper montane belt (e.g. Callulina sp. Hoplophryne sp., and Probreviceps sp.). Etymology. The species name is a patronym for Dr. James Hansen, who has made important scientific contributions towards climate science and as a supporter of the African Rainforest Conservancy trust has contributed towards the conservation of Eastern Arc forests. The specific epithet should be treated as a noun in genitive case.Published as part of Loader, Simon P., Gower, David J., Müller, Hendrik & Menegon, Michele, 2010, Two new species of Callulina (Amphibia: Anura: Brevicipitidae) from the Nguru Mountains, Tanzania, pp. 26-42 in Zootaxa 2694 on pages 28-33, DOI: 10.5281/zenodo.19964
FIGURE 1. a in Two new species of Callulina (Amphibia: Anura: Brevicipitidae) from the Nguru Mountains, Tanzania
No full textFIGURE 1. a) Map of the Eastern Arc Mountains of Tanzania and southern Kenya showing the distribution of Callulina b) Distribution of C. hanseni sp. nov. (circle) and C. kanga sp. nov. (triangle) in the Nguru Mountains.Published as part of Loader, Simon P., Gower, David J., Müller, Hendrik & Menegon, Michele, 2010, Two new species of Callulina (Amphibia: Anura: Brevicipitidae) from the Nguru Mountains, Tanzania, pp. 26-42 in Zootaxa 2694 on page 27, DOI: 10.5281/zenodo.19964
Figure 2 in Three new species of Callulina (Amphibia: Anura: Brevicipitidae) highlight local endemism and conservation plight of Africa's Eastern Arc forests
No full textFigure 2. Dorsal, ventral, and laterial views, and ventral aspect, of hands and feet of the holotype of Callulina laphami sp. nov. BMNH 2002.37.Published as part of Loader, Simon P., Gower, David J., Ngalason, Wilirk & Menegon, Michele, 2010, Three new species of Callulina (Amphibia: Anura: Brevicipitidae) highlight local endemism and conservation plight of Africa's Eastern Arc forests, pp. 496-514 in Zoological Journal of the Linnean Society 160 (3) on page 500, DOI: 10.1111/j.1096-3642.2010.00652.x, http://zenodo.org/record/549413
Re-description of the type series of Nectophrynoides viviparus (Bufonidae) : with a taxonomic reassessment
No full textFIGURE 1. Map of the Southern Highlands, Tanzania. Black dots: type locality and further records of the species.Published as part of Loader, Simon P., Poynton, John C., Davenport, Tim R. B. & Rödel, Mark-Oliver, 2009, Re-description of the type series of Nectophrynoides viviparus (Bufonidae), with a taxonomic reassessment, pp. 41-50 in Zootaxa 2304 on page 43, DOI: 10.5281/zenodo.27533
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