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 A new species of Leptolalax (Anura: Megophryidae) from Son Tra Peninsula, central Vietnam
Tác giả hoặc Nhóm tác giả: LUAN THANH NGUYEN, NIKOLAY A. POYARKOV JR., DZUNG TRUNG LE, BA DINH VO,HOA THI PHAN, TANG VAN DUONG, ROBERT W. MURPHY& SANG NGOC NGUYEN
Nơi đăng: Magnolia Press; Số: Zootaxa 4388 (1);Từ->đến trang: 01-21;Năm: 2018
Lĩnh vực: Tự nhiên; Loại: Bài báo khoa học; Thể loại: Quốc tế
TÓM TẮT
Morphological, acoustic and molecular analyses result in the description of Leptolalax rowleyae sp. nov., a new speciesof frog in the Megophryidae, belonging to the L. applebyi Rowley & Cao species group from central Vietnam. It differsfrom its congeners by a combination of the following morphological attributes: (1) adult SVL 23.4–25.4 mm in males and27–27.8 mm in females; (2) presence of distinct dark/brown dorsolateral markings, including black spots on flanks; (3)pinkish milk-white to light brown chest and belly with numerous white speckles; (4) tympanum distinct; (5) absence ofwebbing or lateral dermal fringes on fingers and toes; (6) pectoral glands comparatively small (3.3–4.7% of SVL); (7)ventrolateral glands indistinct; and (8) iris bicolored with copper tint in upper half fading to golden in lower third of iris.The male advertisement call of the new species consists of 4–6 notes, lacking a distinct introductory note, with an averagedominant frequency of 3.2–3.5 kHz. The description of the tadpole constitutes the first description of larval morphologyfor a member of the L. appleybi species group. Genetically, an uncorrected sequence divergence of 7.4% for 16S rRNAseparates the new species from its two closest relatives, L. ardens and L. melicus in the L. applebyi species group.
ABSTRACT
Morphological, acoustic and molecular analyses result in the description of Leptolalax rowleyae sp. nov., a new speciesof frog in the Megophryidae, belonging to the L. applebyi Rowley & Cao species group from central Vietnam. It differsfrom its congeners by a combination of the following morphological attributes: (1) adult SVL 23.4–25.4 mm in males and27–27.8 mm in females; (2) presence of distinct dark/brown dorsolateral markings, including black spots on flanks; (3)pinkish milk-white to light brown chest and belly with numerous white speckles; (4) tympanum distinct; (5) absence ofwebbing or lateral dermal fringes on fingers and toes; (6) pectoral glands comparatively small (3.3–4.7% of SVL); (7)ventrolateral glands indistinct; and (8) iris bicolored with copper tint in upper half fading to golden in lower third of iris.The male advertisement call of the new species consists of 4–6 notes, lacking a distinct introductory note, with an averagedominant frequency of 3.2–3.5 kHz. The description of the tadpole constitutes the first description of larval morphologyfor a member of the L. appleybi species group. Genetically, an uncorrected sequence divergence of 7.4% for 16S rRNAseparates the new species from its two closest relatives, L. ardens and L. melicus in the L. applebyi species group.
[ 2018 - nguyen et al - a new species of leptolalax from son tra.pdf ]
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