Vertebrate Zoology

2019 - 69 (1)

Issue 69 (1) 2019

Content

GARG, S., SUYESH, R., DAS, A., JIANG, J.P. ET AL.
Systematic revision of Microhyla (Microhylidae) frogs of South Asia: a molecular, morphological, and acoustic assessment
DOI: 10.26049/VZ69-1-2019-01

W. J. E. M. COSTA
Two new species of seasonal killifishes of the Nothobranchius melanospilus species complex from the East Africa biodiversity hotspot (Cyprinodontiformes: Aplocheilidae)
DOI: 10.26049/VZ69-1-2019-02

SOMMER, R. S., HOFREITER, M., KRÜGER, F. ET AL.
Preliminary results on the molecular study of fish-eating by ‘trawling Myotis’ bat species in Europe
DOI: 10.26049/VZ69-1-2019-03

DAS, S. & K. PRAMANICK
Comparative anatomy and homology of jaw adductor muscles of some South Asian colubroid snakes (Serpentes: Colubroidea)
DOI: /10.26049/VZ69-1-2019-04

STAECK, W. & I. SCHINDLER
Apistogramma psammophila – a new geophagine dwarf cichlid (Teleostei: Cichlidae) from the Rio Atabapo drainage in Colombia and Venezuela
DOI: 10.26049/VZ69-1-2019-05

Garg, S., Suyesh, R., Das, A., Jiang, J.P. et al.

Systematic revision of Microhyla (Microhylidae) frogs of South Asia: a molecular, morphological, and acoustic assessment

Title: Systematic revision of Microhyla (Microhylidae) frogs of South Asia: a molecular, morphological, and acoustic assessment

Creators: Sonali Garg, Robin Suyesh, Abhijit Das, Jianping Jiang, Nayana Wijayathilaka, A. A. Thasun Amarasinghe, Farits Alhadi, Kumar K. Vineeth, N. A. Aravind, Gayani Senevirathne, Madhava Meegaskumbura & S. D. Biju

Submitted May 28, 2018.
Accepted November 23, 2018.
Published online early at www.senckenberg.de/vertebrate-zoology on December 18, 2018
Published in print on February 27, 2019.
DOI: 10.26049/VZ69-1-2019-01 
PDF/A 20MB

Published by Senckenberg Gesellschaft für Naturforschung

Date (Publication Year): 2018

Resource Type (General): TEXT

Resource Type (optional): Vertebrate Zoology, Scientific Article

Description: This study presents a systematic revision of South Asian members of the taxonomically challenging genus MicrohylaTschudi, 1838. Species relationships and diagnostic characters are determined by integrating molecular, morphological, and acoustic approaches, through which we also recognize six groups of closely related species. In addition, a new species from the southern Western Ghats of India is formally described as Microhyla darreli sp. nov. Species accounts of all the 16 recognized members from South Asia include current taxonomic status, metric and meristic characters, divergence in mitochondrial DNA, phylogenetic relationships, acoustic characters, revised geographical distributions, and natural history notes. Molecular and morphological relationships of three poorly known members — M. chakrapanii, M. karunaratnei, and M. zeylanica — are clarified for the first time since their original descriptions. The presence of M. berdmorei and another potential new species close to M. heymonsi in India is genetically confirmed, and several misidentifications are corrected. For comparative purposes, molecular, morphological, and acoustic relationships are also discussed for eight closely related East and Southeast Asian species. Consequently, insights from this study will facilitate a much-needed comprehensive revision of the Pan-Asian frog genus Microhyla.

Keywords: Amphibians; bioacoustics; cryptic species; diagnostic characters; integrative taxonomy; Microhylidae; molecular phylogeny; morphology; species groups; new species.

 

Citation: Garg, S., Suyesh, R., Das, A., Jiang, J., Wijayathilaka, N., Thasun Amarasinghe, A. A., Alhadi, F., Vineeth, K.K., Aravind, N.A., Senevirathne, G., Meegaskumbura, M., Biju, S. D. (2018). Systematic revision of Microhyla (Microhylidae) frogs of South Asia: a molecular, morphological, and acoustic assessment. Vertebrate Zoology, 69(1): 1-71. https://doi.org/10.26049/VZ69-1-2019-01

Costa, W.J.E.M.

Two new species of seasonal killifishes of the Nothobranchius melanospilus species complex from the East Africa biodiversity hotspot (Cyprinodontiformes: Aplocheilidae*)

Title: Two new species of seasonal killifishes of the Nothobranchius melanospilus species complex from the East Africa biodiversity hotspot (Cyprinodontiformes: Aplocheilidae*)

Creators: Wilson J. E. M. Costa

Submitted February 16, 2018.
Accepted October 30, 2018.
Published online at www.senckenberg.de/vertebrate-zoology on February 15, 2019.
Published in print on February 27, 2019.
DOI: 10.26049/VZ69-1-2019-02 
PDF/A 2.5MB

Published by Senckenberg Gesellschaft für Naturforschung

Date (Publication Year): 2018

Resource Type (General): TEXT

Resource Type (optional): Vertebrate Zoology, Scientific Article

Description: This study presents a systematic revision of South Asian members of the taxonomically challenging genus MicrohylaTschudi, 1838. Species relationships and diagnostic characters are determined by integrating molecular, morphological, and acoustic approaches, through which we also recognize six groups of closely related species. In addition, a new species from the southern Western Ghats of India is formally described as Microhyla darreli sp. nov. Species accounts of all the 16 recognized members from South Asia include current taxonomic status, metric and meristic characters, divergence in mitochondrial DNA, phylogenetic relationships, acoustic characters, revised geographical distributions, and natural history notes. Molecular and morphological relationships of three poorly known members — M. chakrapanii, M. karunaratnei, and M. zeylanica — are clarified for the first time since their original descriptions. The presence of M. berdmorei and another potential new species close to M. heymonsi in India is genetically confirmed, and several misidentifications are corrected. For comparative purposes, molecular, morphological, and acoustic relationships are also discussed for eight closely related East and Southeast Asian species. Consequently, insights from this study will facilitate a much-needed comprehensive revision of the Pan-Asian frog genus Microhyla.

Keywords: Kenya, Mkata River, Ramisi River, Tanzania, Tendigo Swamp, Systematics.

(*) Aplocheilidae is here adopted as a single Aplocheiloidei family following Costa (2016).

Citation: Costa, W. J. E. M. (2019). Two new species of seasonal killifishes of the Nothobranchius melanospilus species complex from the East Africa biodiversity hotspot (Cyprinodontiformes: Aplocheilidae). Vertebrate Zoology, 69(1): 73-82. https://doi.org/10.26049/VZ69-1-2019-02

Sommer, R. S., Hofreiter, M., Krüger, F., Siemers, B. M., Paijmans, J. L. A., Li, C. & M. F. Geiger.

Preliminary results on the molecular study of fish-eating by ‘trawling Myotis’ bat species in Europe

Title: Preliminary results on the molecular study of fish-eating by ‘trawling Myotis’ bat species in Europe

Creators: Robert S. Sommer, Michael Hofreiter, Frauke Krüger, Björn M. Siemers, Johanna L. A. Paijmans, Chenhong Li, Matthias F. Geiger

Submitted March 19, 2018.
Accepted December 5, 2018.
Published online at www.senckenberg.de/vertebrate-zoology on February 15, 2019.
Published in print on February 27, 2019.
DOI: 10.26049/VZ69-1-2019-03
PDF/A 0.2MB

Published by Senckenberg Gesellschaft für Naturforschung

Date (Publication Year): 2019

Resource Type (General): TEXT

Resource Type (optional): Vertebrate Zoology, Scientific Article

Description: Piscivory in vespertilionid bat species in the genus Myotis and trawling as typical element of behaviour in the hunting flight above the water surface are widely acknowledged. However, among the European bat fauna, only long-fingered bats (Myotis capaccinii) are known to consume fish. In Daubenton’s bat (Myotis daubentonii) as well as the pond bat (Myotis dasycneme), both also members of the guild of European ‚trawling Myotis‘ species, piscivory is possible, but has not yet been sufficiently recorded by morphological analyses of prey in faecal pellets. Previous experimental studies have shown that fish remains are difficult to detect in faecal pellets of M. daubentonii; thus, piscivory may not always be reliably detected by morphological identification of prey remains. We analysed the DNA of faecal samples of all three trawling Myotis species from different regions of Europe by PCR amplification and Sanger sequencing of the molecular markers 16S RNA an the DNA barcode region of the cytochrome oxidase subunit I (COI) for detection of possible fish DNA and taxonomic identification of species. In on 30% of the samples we were able to amplify fish-DNA based on COI in faeces of M. capaccinii and M. daubentonii from Bulgaria and in 8% using the 16S RNA locus from M. dasycneme faeces from Germany. Based on technical problems of our molecular approach, our data do not reveal a definite and reliable molecular record of diet-derived fish DNA in the faecal pellets of the investigated trawling Myotisspecies nor proof for piscivory in M. dasycneme and M. daubentonii. Our results may be a stimulation and draft for other researchers to test the detection of diet-derived fish DNA in trawling Myotis with improved molecular genetics approaches. 

Keywords: Feeding ecology, hunting behaviour, Myotis, piscivory, trawling bat species.

 

Citation: Sommer, R. S., Hofreiter, M., Krüger, F., Siemers, B. M., Paijmans, J. L. A., Li, C., Geiger M. F. (2019). Preliminary results on the molecular study of fish-eating by ‘trawling Myotis’ bat species in Europe. Vertebrate Zoology, 69(1): 83-92. https://doi.org/10.26049/VZ69-1-2019-03

Das, S. & K. Pramanick

Comparative anatomy and homology of jaw adductor muscles of some South Asian colubroid snakes (Serpentes: Colubroidea)

Title: Comparative anatomy and homology of jaw adductor muscles of some South Asian colubroid snakes (Serpentes: Colubroidea)

Creators: Sunandan Das, Kousik Pramanick

Submitted June 26, 2018.
Accepted January 2, 2019.
Published online at www.senckenberg.de/vertebrate-zoology on February 15, 2019.
Published in print on February 27, 2019.
DOI: 10.26049/VZ69-1-2019-04
PDF/A 2.7MB

Published by Senckenberg Gesellschaft für Naturforschung

Date (Publication Year): 2019

Resource Type (General): TEXT

Resource Type (optional): Vertebrate Zoology, Scientific Article

Description: We studied jaw adductor muscles in eighteen species of South Asian colubroid snakes and presented a comparative account of their anatomy. The deepest layer of external adductor appears to be a composite of aductor mandibulae externus medialis and profundus fibres and caenophidians are characterized by an attenuation of the former muscle which may be correlated with the development of a derived type of mandible. Our observations further suggest that, though highly reduced, fibres homologous to adductor mandibulae externus medialis may be present in at least some colubroids with a bodenaponeurosis. Some hitherto unreported features pertaining to levator anguli oris and pterygomandibularis of some studied elapid, colubrine colubrid and ahaetuliine colubrid genera are also described.

Keywords: Jaw adductor, snakes, Colubroidea, anatomy, musculature, adductor mandibulae externus, adductor internus, adductor posterior, levator anguli oris, pterygomandibularis.

Citation: Das, S., Pramanick, K. (2019). Comparative anatomy and homology of jaw adductor muscles of some South Asian colubroid snakes (Serpentes: Colubroidea). Vertebrate Zoology, 69(1): 93-102. https://doi.org/10.26049/VZ69-1-2019-04

Staeck, W. & I. Schindler

Apistogramma psammophila – a new geophagine dwarf cichlid (Teleostei: Cichlidae) from the Rio Atabapo drainage in Colombia and Venezuela

Title: Apistogramma psammophila – a new geophagine dwarf cichlid (Teleostei: Cichlidae) from the Rio Atabapo drainage in Colombia and Venezuela

Creators: Wolfgang Staeck, Ingo Schindler

Submitted June 29, 2018.
Accepted January 10, 2019.
Published online at www.senckenberg.de/vertebrate-zoology on February 15, 2019.
Published in print on February 27, 2019.
DOI: 10.26049/VZ69-1-2019-05 
PDF/A 4.1MB

Published by Senckenberg Gesellschaft für Naturforschung

Date (Publication Year): 2019

Resource Type (General): TEXT

Resource Type (optional): Vertebrate Zoology, Scientific Article

Description: Apistogramma psammophila sp. n. is described from the lower Rio Atabapo drainage in Colombia (Departamento Guainía) and Venezuela (Estado Amazonas). It can be distinguished from all congeners by the following combination of characters: Two dark horizontal stripes on body side, two pectoral spots, suborbital stripe becoming much wider ventrally, and no caudal spot. In adult males soft dorsal and anal fins each with long filamentous prolongation almost reaching posterior margin of caudal fin, and pelvic fins with filamentous extension, nearly reaching middle of anal-fin base.
It is most similar to Apistogramma diplotaenia Kullander, 1987, but differs from this species by an irregular pattern of 6 – 8 short vertical dark bar-like markings below the lower lateral stripe, and adult males with reddish area on cheek and chest between eye and pectoral axilla and distinctly lanceolate caudal fin.

Keywords: Apistogramma diplotaenia, Cichlinae, Departamento Guainía, Estado Amazonas, Geophagini, ichthyology, new species, Orinoco basin, taxonomy.

Citation: Staeck, W., Schindler, I. (2019). Apistogramma psammophila – a new geophagine dwarf cichlid (Teleostei: Cichlidae) from the Rio Atabapo drainage in Colombia and Venezuela. Vertebrate Zoology, 69(1): 103-110. https://doi.org/10.26049/VZ69-1-2019-05