Molecular and morphological data reveal three new cryptic species of \u3cem\u3eChiasmocleis\u3c/em\u3e (Mehely 1904) (Anura, Microhylidae) endemic to the Atlantic Forest, Brazil

Three new cryptic species of Chiasmocleis from the Atlantic Forest of Brazil are described. Two of these species occur in the northeastern states of Sergipe and Bahia, whereas the third species is found in the southeastern state of São Paulo. The new species can be distinguished from other congeneric species by the molecular data, as evidenced in the phylogeny, and by a combination of morphological characters including: size, foot webbing, dermal spines, and coloration patterns. Chiasmocleis species differ in osteological traits, therefore we also provide an osteological description of each new species and comparisons with data reported for other species in the genus

Multiple connections between Amazonia and Atlantic Forest shaped the T phylogenetic and morphological diversity of Chiasmocleis Mehely, 1904 (Anura: Microhylidae: Gastrophryninae)

Chiasmocleis is the most species-rich genus of Neotropical microhylids. Herein, we provide the first comprehensive multilocus phylogeny for the genus, including all but 3 of the 34 recognized species and multiple individuals per species. We discuss cryptic speciation, species discovery, patterns of morphological evolution, and provide a historical biogeographic analysis to account for the current distribution of the genus. Diversification of Chiasmocleis from other New World microhylids began during the Eocene, app. 40 mya, in forested areas, and current diversity seems to be a product of recurrent connections between the Atlantic Forest and Amazonia. Small-sized species evolved independently three times in Chiasmocleis. Furthermore, the extremely small-bodied (i.e. miniaturized) species with associated loss of digits, phalanges, and pectoral girdle cartilages evolved only once and are restricted to Amazonia. Using the phylogeny, we recognized three subgenera within Chiasmocleis: Chiasmocleis Méhely, 1904, Relictus subg. nov., and Syncope Walker, 1973. The recognition of the subgenus Syncopeinforms future research on patterns of miniaturization in the genus, and the subgenus Relictus highlights isolation of an endemic and species-poor lineage to the Atlantic Forest, early (about 40 mya) in the history of Chiasmocleis

The Advertisement Calls and Distribution of Two Sympatric Species of \u3cem\u3eChiasmocleis\u3c/em\u3e (Méhely 1904) (Anura, Microhylidae, Gastrophryninae) from the Atlantic Forest

The advertisement calls of Chiasmocleis cordeiroi and C. crucis are described for populations from the municipalities of Igrapiúna and Camacan, respectively, state of Bahia, Brazil. Both calls consist of multipulsed notes produced in series. Differences between the two calls are: dominant frequency, higher in C. cordeiroi (range 4500-4898 Hz; C. crucis range 4069-4435 Hz); note rate, higher in C. cordeiroi (range 6.20--7.46 s/note; C. crucis range 5.17-5.59 s/note); pulse rate, higher in C. cordeiroi (151.82-194.83 s/note; C. crucis range 125.30- 142.12 s/note); and the structure of the modulation patterns of the notes. Moreover, the advertisement calls of C. crucis and C. cordeiroi are more similar than the calls of all syntopic congeners. Furthermore, the current distribution of both species was extended

Molecular and morphological data reveal three new cryptic species of Chiasmocleis (Mehely 1904) (Anura, Microhylidae) endemic to the Atlantic Forest, Brazil

Three new cryptic species of Chiasmocleis from the Atlantic Forest of Brazil are described. Two of these species occur in the northeastern states of Sergipe and Bahia, whereas the third species is found in the southeastern state of São Paulo. The new species can be distinguished from other congeneric species by the molecular data, as evidenced in the phylogeny, and by a combination of morphological characters including: size, foot webbing, dermal spines, and coloration patterns. Chiasmocleis species differ in osteological traits, therefore we also provide an osteological description of each new species and comparsions with data reported for other species in the genus

Phylogeny, Taxonomic Revision, And Character Evolution Of The Genera Chiasmocleis And Syncope (Anura, Microhylidae) In Amazonia, With Descriptions Of Three New Species

Peloso, Pedro L.V., Sturaro, Marcelo José, Forlani, Mauricio C., Gaucher, Philippe, Motta, Ana Paula, Wheeler, Ward C. (2014): Phylogeny, Taxonomic Revision, And Character Evolution Of The Genera Chiasmocleis And Syncope (Anura, Microhylidae) In Amazonia, With Descriptions Of Three New Species. Bulletin of the American Museum of Natural History 2014 (386): 1, DOI: 10.1206/834.1, URL: http://www.bioone.org/doi/abs/10.1206/834.

Chiasmocleis supercilialba , Morales and McDiarmid 2009

Chiasmocleis supercilialba Morales and McDiarmid, 2009 Figure 35, plate 8 Chiasmocleis supercilialbus (Morales and McDiarmid, 2009). Incorrect spelling in the original description (see Peloso et al., 2013). Syncope supercilialbus (de Sá et al., 2012). HOLOTYPE: MHNSM 16174; examined solely from a photograph, in life (not shown). TYPE LOCALITY: Pakitza, Reserve Zone, Manu National Park, ca. 57 km northwestern from the mouth of Rio Manu (11 ° 569470S / 71 ° 179000W), on Rio Manu, Departamento Madre de Dios, Peru. DIAGNOSIS: A medium-sized species for the genus; SVL in males 18.4–18.7 mm (Morales and McDiarmid, 2009). Females unknown. Body ovoid to elongate; head triangular, snout rounded in dorsal and lateral views. Four distinctive fingers; FI well developed, subarticular tubercle may be absent or present; subarticular tubercles present on all remaining fingers, sometimes hardly visible; adpressed FI never extends past the distal margin of subarticular tubercle of FII; adpressed FIV does not reach distal tubercle of FIII; palmar tubercles present, not divided; relative finger lengths I,II, IV,III. Five distinctive toes present, first may be much reduced; toes may be slightly fringed; toes not webbed; TI lacks tubercle; adpressed TI does not touch subarticular tubercle of TII; adpressed TV does not touch middle subarticular tubercle of TIV; TII–IV with terminal discs, usually more developed in females, but also present in males; relative toe lengths I,II,V,III,IV. An inguinal blotch of varied shape is always present. Venter (belly and under surfaces of thighs) usually white or cream with black or dark brown irregular spots. VARIATION: Some variation in color pattern was observed from photos of live specimens (pl. 8) and examination of a paratype (USNM 342862: fig. 35). The dorsum can be dark brown, to almost uniformly whitish (silver) and may show reddish blotches and white spots (when not entirely whitish). A wide white stripe is almost invariably present from the snout to past the eyelids, sometimes extending to the inguinal region (forming the split stripe). A very narrow dorsal white line commonly present, extending from the occipital region to the cloacal region. Dorsal surfaces of forearm yellowish, orange or red, while dorsal surfaces of hind limbs usually follow the general dorsal pattern. As reported by Morales and McDiarmid (2009) the shape and number of inguinal and lateral blotches (or spots) is variable, but commonly dark brown. Throat region with intense brown reticulation over a white (or cream-colored) background. Chest, belly, and undersurfaces of limbs with large, dark brown spots or irregular blotches (fig. 35, pl. 8D, F, H). CALL AND TADPOLE: The advertisement call of C. supercilialba was described by Morales and McDiarmid (2009). Call consists of a fast series of multipulsed notes (mean note duration 31.0 ms; mean interval between notes 37.0 ms) with dominant frequency between 2985.8–3205.0 Hz. Number of pulses per note not given. Tadpoles are unknown. REMARKS: A population from Rio Formoso, state of Rondônia, Brazil (OMNH 37204–37206, 37308–37309, 37319), present dermal spines on dorsum, upper lips, cloacal region, fingers, and toes. The specimens also show well-developed fringes on the fingers and toes, and the toes are basally webbed. These specimens, therefore, agree (in part) with the diagnosis of Chiasmocleis supercilialba (see Morales and McDiarmid 2009, and text above). We tentatively assign the Rio Formoso specimens to C. supercilialba. DISTRIBUTION (fig. 36): Southern Peru (Madre de Dios) and western Brazil (Acre and Rondônia).Published as part of Peloso, Pedro L. V., Sturaro, Marcelo José, Forlani, Mauricio C., Gaucher, Philippe, Motta, Ana Paula & Wheeler, Ward C., 2014, Phylogeny, Taxonomic Revision, And Character Evolution Of The Genera Chiasmocleis And Syncope (Anura, Microhylidae) In Amazonia, With Descriptions Of Three New Species, pp. 1 in Bulletin of the American Museum of Natural History 2014 (386) on pages 55-57, DOI: 10.1206/834.1, http://zenodo.org/record/537860

High resolution images for Phylogeny, taxonomic revision, and character evolution of the genera Chiasmocleis and Syncope (Anura, Microhylidae) in Amazonia, with descriptions of three new species. (Bulletin of the American Museum of Natural History, no. 386)

High resolution images for Phylogeny, taxonomic revision, and character evolution of the genera Chiasmocleis and Syncope (Anura, Microhylidae) in Amazonia, with descriptions of three new species. (Bulletin of the American Museum of Natural History, no. 386); Bulletin no. 386 can be accessed at this link: http://hdl.handle.net/2246/651