A new species of the genus Tylototriton is described in this article based on morphological and genetic evidence. The new species is identified belonging to the T. asperrimus group and is similar to T. wenxianensis. T...A new species of the genus Tylototriton is described in this article based on morphological and genetic evidence. The new species is identified belonging to the T. asperrimus group and is similar to T. wenxianensis. The diagnostic characters of the new species are as follows: dorsal ridge broad and thick,its width approximately equal to eye diameter(P < 0.001); tail height greater than width at base of tail(P < 0.001); no villous genital papilla found inside the male anal fissure; nodule-like warts,along lateral margin of the trunk,bulge and forming tubercles,and thin and transverse striae present between the tubercles.展开更多
We describe a new species of the genus Cynops from northeastern Guangdong, China. This new species is distinguished from its congeners by a combination of morphological and molecular characters. In morphology, it is c...We describe a new species of the genus Cynops from northeastern Guangdong, China. This new species is distinguished from its congeners by a combination of morphological and molecular characters. In morphology, it is chra- cterized by distinctive irregular bluish grey spots on the dorsum from head to tail; irregular, bright orange blotches on venter, chin, underside of axillae, limbs, cloaca; one bright orange stripe in the middle of venter; and ventral tail orange red. Analyses of mitochondrial DNA data indicate that this new species forms one highly diverged lineage within the Chinese group of Cynops.展开更多
We describe a new species from the family Salamandridae from northeastern Hunan Province of China based on morphological and molecular genetic evidences.The new species,Tylototriton liuyangensis,is a member of the T.a...We describe a new species from the family Salamandridae from northeastern Hunan Province of China based on morphological and molecular genetic evidences.The new species,Tylototriton liuyangensis,is a member of the T.asperrimus group,and shares a number of similarities with T.wenxianensis and T.broadoridgus.The dorsal surface of the new Tylototriton species is completely black,with nodule-like warts distributed evenly along the lateral margin of dorsal body,and there is no transverse striae between the warts.There are several diagnostic characters of the new species that differ from those of T.wenxianensis and T.broadoridgus as follows:(1)the interorbital space(IOS)is comparatively wide;(2)there is a bony ridge present on the dorsal head surface,running along the upper eyelids;(3)the space between axilla and groin(AGS)is comparatively large,with the mean male AGS approximately equal to 50%of the snout-vent length(SVL)and the mean female AGS being 53%of SVL;and(4)there is a small genital armature on the anterior angle of labial folds present inside the anal fissure of adult males during the breeding season.The result from the molecular phylogenetic analysis of the genus Tylototriton(including the type specimen of the new species)based on the complete DNA sequence of the mitochondrial ND2 gene(1035 bp)indicated that the new species was similar to T.wenxianensis,T.dabienicus,and T.broadoridgus,but formed an independent clade.This result was consistent with the morphological analysis above,supporting that the Liuyang Population represented a distinct species.展开更多
基金supported by the National Natural Science Foundation of China(NSFC-30770316,31071906)the Knowledge Innovation Program of the Chinese Academy of Sciences(KSCX2-EW-J-22)to Jianping JIANG
文摘A new species of the genus Tylototriton is described in this article based on morphological and genetic evidence. The new species is identified belonging to the T. asperrimus group and is similar to T. wenxianensis. The diagnostic characters of the new species are as follows: dorsal ridge broad and thick,its width approximately equal to eye diameter(P < 0.001); tail height greater than width at base of tail(P < 0.001); no villous genital papilla found inside the male anal fissure; nodule-like warts,along lateral margin of the trunk,bulge and forming tubercles,and thin and transverse striae present between the tubercles.
基金supported by the grants from the Ministry of Science and Technology of China (MOST Grant 2011FY120200)the National Natural Science Foundation of China (31090250)+1 种基金the Chinese Academy of Sciences (KSCX2YW-Z-0807, KSCX2-EW-Z-2, KSCX2-EW-Q-9)the Bureau of Science and Technology of Yunnan, China (2010CI045)
文摘We describe a new species of the genus Cynops from northeastern Guangdong, China. This new species is distinguished from its congeners by a combination of morphological and molecular characters. In morphology, it is chra- cterized by distinctive irregular bluish grey spots on the dorsum from head to tail; irregular, bright orange blotches on venter, chin, underside of axillae, limbs, cloaca; one bright orange stripe in the middle of venter; and ventral tail orange red. Analyses of mitochondrial DNA data indicate that this new species forms one highly diverged lineage within the Chinese group of Cynops.
基金supported by NSFC (31071906)the Public Welfare Scientific Research Project, Ministry of Environmental Protection of the People’s Republic of China (201209028)the Construct Program of the Key Discipline in Hunan Province (CSUFT-2013001)
文摘We describe a new species from the family Salamandridae from northeastern Hunan Province of China based on morphological and molecular genetic evidences.The new species,Tylototriton liuyangensis,is a member of the T.asperrimus group,and shares a number of similarities with T.wenxianensis and T.broadoridgus.The dorsal surface of the new Tylototriton species is completely black,with nodule-like warts distributed evenly along the lateral margin of dorsal body,and there is no transverse striae between the warts.There are several diagnostic characters of the new species that differ from those of T.wenxianensis and T.broadoridgus as follows:(1)the interorbital space(IOS)is comparatively wide;(2)there is a bony ridge present on the dorsal head surface,running along the upper eyelids;(3)the space between axilla and groin(AGS)is comparatively large,with the mean male AGS approximately equal to 50%of the snout-vent length(SVL)and the mean female AGS being 53%of SVL;and(4)there is a small genital armature on the anterior angle of labial folds present inside the anal fissure of adult males during the breeding season.The result from the molecular phylogenetic analysis of the genus Tylototriton(including the type specimen of the new species)based on the complete DNA sequence of the mitochondrial ND2 gene(1035 bp)indicated that the new species was similar to T.wenxianensis,T.dabienicus,and T.broadoridgus,but formed an independent clade.This result was consistent with the morphological analysis above,supporting that the Liuyang Population represented a distinct species.