v14i2.371

eISSN: 1800-427X (online)
DOI:10.47605/tapro.v14i2.371

Submitted date: 15 October 2024
Accepted date: 22 September 2025
Published date: 16 October 2025
Pp. 188–194.

COMPARATIVE MORPHOLOGY AND ADVERTISEMENT CALL OF Microhyla fissipes BOULENGER, 1884 AND M. heymonsi VOGT, 1911 (AMPHIBIA: MICROHYLIDAE) FROM TAIWAN

Mahmudul Hasan*, Chun-Fu Lin, Ha-Cheol Sung, Jiyoung Yun & Masayuki Sumida
*Corresponding author. E-mail: mhasan@jstu.ac.bd

Abstract
We evaluated differences in morphology and advertisement calls of Microhyla fissipes and M. heymonsi from Nantou County, Taiwan, to better delineate the species and to improve our ability to identify them in the field. M. heymonsi in the tadpole stage is easily recognized due to the presence of an upturned funnel-like oral disc in the mouth, which has not been noted in other microhylids so far. While the two species exhibit similar call structures in temporal attributes with a series of calls each with rapidly repeating pulses, they were distinguishable with different pulse numbers per call and pulse rate. Mean call duration for M. fissipes and M. heymonsi was 0.31 ± 0.03 s (n = 97) and 0.36 ± 0.09 s (n = 153), respectively, with the calls comprising 14.3 ± 0.9 and 10.27 ± 2.09 repeating pulses with a pulse rate of 46.66 ± 2.65/s and 28.95 ± 2.91/s, respectively.

Section Editor: Vladislav Gorin