Odorrana concelata Wang, Zeng & Lin, 2022
Moss-speckled Odorous Frog, Tai Ban Chou Wa/苔斑臭蛙 (Chinese) | family: Ranidae genus: Odorrana |
Species Description: Lin S-S, Li Y-H, Su H-L, Yi H, Pan Z, Sun Y-J, Zeng Z-C, Wang J. 2022. Discovery of a new limestone karst-restricted odorous frog from northern Guangdong, China (Anura, Ranidae, Odorrana). ZooKeys 1120: 47–66. |
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Description DIAGNOSIS: Odorrana concelata is phylogenetically closest to the clade comprising of O. lipuensis and O. liboensis. However, it can be distinguished from these species and other related species based on several characteristics. Firstly, O. concelata exhibits a smaller body size, with male snout-vent lengths measuring between 34.0 mm and 36.8 mm and females measuring between 41.4 mm and 46.0 mm. In contrast, male O. lipuensis have a snout-vent length range of 40.7 mm to 49.8 mm and females range from 51.1 mm to 60.1 mm. Male O. liboensis measure between 47.1 mm and 49.9 mm and females measure between 55.8 mm and 58.2 mm. Additionally, O. concelata possesses a pineal body, which is absent in both O. lipuensis and O. liboensis. It also exhibits the presence of nuptial pads on the base of finger I and medially along the inner side of fingers II and III, whereas O. lipuensis and O. liboensis only have a nuptial pad on finger I in males. Relative finger lengths in O. concelata follow the sequence, II < I < IV < III, while in O. lipuensis the sequence is I = II < IV < III. Furthermore, O. concelata lacks conical spines on the upper lip except for the skin of the commissure of the jaw, whereas O. lipuensis has conical spines on the entire upper lip. The tibiotarsal articulation reaches the nostril in O. concelata, whereas it reaches the anterior of the eye in O. lipuensis. Finally, O. concelata features tiny conical spines in the temporal region except for the tympanum, skin of the commissure of the jaw, upper edge of the eyelid, and along the dorsolateral sides of the body. These spines are absent in O. liboensis (Lin et al. 2022). The lack of vocal sacs easily distinguishes O. concelata from other species of Odorrana, including O. absita, O. amamiensis, O. anlungensis, O. aureola, O. bacboensis, O. banaorum, O. bolavensis, O. cangyuanensis, O. chapaensis, O. chloronota, O. dulongensis, O. exiliversabilis, O. fengkaiensis, O. geminata, O. gigatympana, O. grahami, O. graminea, O. hainanensis, O. hejiangensis, O. huanggangensis, O. indeprensa, O. ichangensis, O. ishikawae, O. jingdongensis, O. junlianensis, O. khalam, O. kweichowensis, O. lungshengensis, O. macrotympana, O. morafkai, O. nanjiangensis, O. nasica, O. nasuta, O. orba, O. sangzhiensis, O. schmackeri, O. swinhoana, O. tianmuii, O. tiannanensis, O. tormota, O. trankieni, O. utsunomiyaorum, O. versabilis, O. yentuensis, O. yizhangensis and O. yunnanensis. Absence of dorsolateral folds also differentiates it from O. absita, O. amamiensis, O. banaorum, O. bolavensis, O. exiliversabilis, O. gigatympana, O. graminea, O. indeprensa, O. hosii, O. khalam, O. livida, O. leporipes, O. monjerai, O. narina, O. nasica, O. nasuta, O. orba, O. supranarina, O. tormota, O. trankieni, O. utsunomiyaorum, O. versabilis, and O. yentuensis. Compared to the remaining seven congeners - O. kuangwuensis, O. margaretae, O. mutschmanni, O. mawphlangensis, O. rotodora, O. sinica, and O. splendida - O. concelata exhibits marked differences in dorsal and ventral coloration and has a smaller body size (Lin et al. 2022). COLORATION: In life, the dorsum, limbs, and flanks display irregular moss-green speckles and patches of brown coloration. On the limbs, there also are horizontal brown bands. The undersides of the body have a grayish white hue with subtle light brown mottling. The ventral skin of the forelimbs appears grayish white, while the ventral skin of the hind limbs is purplish brown. The iris is black, featuring irregular reticulated gold-green mottles. The pineal body is characterized by a light green coloration. The tympanum is dark brown. Males possess creamy white nuptial pads (Lin et al. 2022). In preservative, the skin of the dorsum, limbs, and flanks takes on a greyish brown coloration, with brown mottling and dark brown transverse bands. The moss-green speckles present in life are absent. The venter is grayish white with brown mottling. The ventral skin of the thighs displays a similar grayish white color, while the ventral skin of the shank and foot takes on a darker grey tone with mottling in dark brown (Lin et al. 2022). VARIATION: Morphology and color patterns between individuals are similar with a few exceptions. There may be tiny spines on the trunk and the sparse spines present in the temporal region may be absent. Additionally, nuptial pads may be absent. Lastly, females display a larger body size (Lin et al. 2022). Distribution and Habitat Country distribution from AmphibiaWeb's database: . Introduced: China.
Life History, Abundance, Activity, and Special Behaviors Its coloration allows the frogs to be well hidden in their habitat (Lin et al. 2022). The breeding season is from March to June, when the frogs gather in the vicinity of small, steep waterfalls that are adorned with moss, which flow out of the karst caves. Females produce eggs that are uniform beige in color (Lin et al. 2022). Trends and Threats Possible reasons for amphibian decline General habitat alteration and loss Comments PHYLOGENETIC RELATIONSHIPS: Maximum Likelihood and Bayesian Inference analyses, using 16S ribosomal RNA and 12S ribosomal RNA, found that O. concelata forms a monophyletic clade that is sister to the clade formed by O. lipuensis and O. liboensis (Lin et al. 2022). ETYMOLOGY: The specific epithet, “concelata”, is an adjective meaning “disguised,” in reference to how these frogs’ coloration allows them to be highly concealed in their mossy habitat (Lin et al. 2022). OTHER INTERESTING INFORMATION: This species is the first reported karst-dwelling Odorrana population from Guangdong (Lin et al. 2022). References Originally submitted by: Matt Mullahy (2023-08-14) Description by: Matt Mullahy, Ann T. Chang (updated 2023-08-14)
Distribution by: Matt Mullahy (updated 2023-08-14)
Life history by: Matt Mullahy (updated 2023-08-14)
Trends and threats by: Matt Mullahy (updated 2023-08-14)
Comments by: Matt Mullahy (updated 2023-08-14)
Edited by: James Hanken and Ann T. Chang (2023-08-14) Species Account Citation: AmphibiaWeb 2023 Odorrana concelata: Moss-speckled Odorous Frog <https://amphibiaweb.org/species/9565> University of California, Berkeley, CA, USA. Accessed Nov 12, 2024.
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Citation: AmphibiaWeb. 2024. <https://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 12 Nov 2024. AmphibiaWeb's policy on data use. |