Kieckbusch Max, Mader Felix, Kaiser Hinrich, Mecke Sven
Department of Animal Evolution and Systematics and Zoological Collection Marburg, Faculty of Biology, Philipps-Universität Marburg, Karl-von-Frisch-Straße 8, 35032 Marburg, Germany..
Zootaxa. 2018 Sep 28;4486(3):236-250. doi: 10.11646/zootaxa.4486.3.2.
We describe a new species of snake of the genus Cylindrophis Wagler, 1828 from Boano Island, northern Maluku Province, Indonesia. Cylindrophis osheai sp. nov. differs from all congeners by a combination of the following eidonomic characters: (1) 19 dorsal scale rows at midbody; (2) 224-226 ventral scales; (3) 8-9 subcaudal scales; (4) 25-28 dark ventral blotches, aligned to form a broad, wavy stripe along most of the body; (5) a dark ventral pattern that is completely separated from the dark dorsal coloration; (6) an almost completely dark ventral surface on the tail; (7) a dark bar running from the eye through the 3rd and 4th supralabials to the mouth; and (8) a dark, double-diamond-shaped ventral blotch in the area immediately posterior to the genials. Eidonomic species separation from other Cylindrophis species is supported by differences in cranial osteology, as elucidated by micro-computed tomography images. Diagnostic features of the cranium include (1) well-developed postorbitofrontals that project laterally beyond the maxilla in dorsal view, creating a characteristic, horn-like appearance; (2) a broad parietal with a bulbous middle section; (3) 10-12 maxillary teeth; (4) nine palatine teeth; (5) 7-9 teeth on the pterygoid; and (6) 11-13 teeth on the dentary. We also provide notes on the taxonomic history of Cylindrophis melanotus Wagler, 1828 and an identification key to the Moluccan species of the genus.
我们描述了一种来自印度尼西亚北马鲁古省博阿诺岛的筒蛇属（Cylindrophis Wagler，1828）新蛇种。新种奥氏筒蛇（Cylindrophis osheai sp. nov.）与所有同属物种的区别在于以下一系列形态学特征的组合：（1）身体中部有19行背鳞；（2）腹鳞224 - 226枚；（3）尾下鳞8 - 9枚；（4）25 - 28个深色腹斑，沿身体大部分排列形成一条宽阔的波浪状条纹；（5）深色腹斑图案与深色背部体色完全分离；（6）尾部腹面几乎全为深色；（7）一条深色条纹从眼睛穿过第三和第四枚上唇鳞延伸至口角；（8）颏鳞后方紧邻区域有一个深色的双菱形腹斑。如微型计算机断层扫描图像所示，颅骨学上的差异支持了该形态学物种与其他筒蛇属物种的区分。颅骨的诊断特征包括：（1）眶后额骨发达，在背视图中向外侧突出超过上颌骨，形成独特的角状外观；（2）顶骨宽阔，中间部分呈球状；（3）上颌齿10 - 12枚；（4）腭骨齿9枚；（5）翼骨齿7 - 9枚；（6）齿骨齿11 - 13枚。我们还提供了关于1828年瓦格勒所描述的黑筒蛇（Cylindrophis melanotus）分类学历史的注释以及该属摩鹿加群岛物种的检索表。
