TY - JOUR A1 - Geissler, Peter A1 - Poyarkov, Nikolay A. A1 - Grismer, Lee A1 - Nguyen, Truong Q. A1 - An, Hang T. A1 - Neang, Thy A1 - Kupfer, Alexander A1 - Ziegler, Thomas A1 - Böhme, Wolfgang A1 - Müller, Hendrik T1 - New Ichthyophis species from Indochina (Gymnophiona, Ichthyophiidae): 1. The unstriped forms with descriptions of three new species and the redescriptions of I-acuminatus Taylor, 1960, I-youngorum Taylor, 1960 and I-laosensis Taylor, 1969 JF - Organisms, diversity & evolution : official journal of the Gesellschaft für Biologische Systematik N2 - Caecilians of the genus Ichthyophis Fitzinger, 1826 are among the most poorly known amphibian taxa within Southeast Asia. Populations of Ichthyophis from the Indochina region (comprising Cambodia, Laos, and Vietnam) have been assigned to five taxa: Ichthyophis acuminatus, Ichthyophis bannanicus, Ichthyophis kohtaoensis, Ichthyophis laosensis, and Ichthyophis nguyenorum. Barcoding of recently collected specimens indicates that Indochinese congeners form a clade that includes several morphologically and genetically distinct but yet undescribed species. Although body coloration is supported by the molecular analyses as a diagnostic character at species level, unstriped forms are paraphyletic with respect to striped Ichthyophis. Based on our morphological and molecular analyses, three distinct unstriped ichthyophiid species, Ichthyophis cardamomensis sp. nov. from western Cambodia, Ichthyophis catlocensis sp. nov. from southern Vietnam, and Ichthyophis chaloensis sp. nov. from central Vietnam are described as new herein, almost doubling the number of Ichthyophis species known from the Indochinese region. All three new species differ from their unstriped congeners in a combination of morphological and molecular traits. In addition, redescriptions of three unstriped Ichthyophis species (Ichthyophis acuminatus, I. laosensis, I. youngorum) from Indochina and adjacent Thailand are provided. KW - Biogeography KW - Caecilians KW - Indochina KW - Cambodia KW - Laos KW - Thailand KW - Vietnam KW - mtDNA KW - Barcoding KW - COI KW - cyt b KW - Phylogeny KW - Integrative taxonomy Y1 - 2015 U6 - https://doi.org/10.1007/s13127-014-0190-6 SN - 1439-6092 SN - 1618-1077 VL - 15 IS - 1 SP - 143 EP - 174 PB - Springer CY - Heidelberg ER -