A decade of amphibian studies (Animalia, Amphibia) at Sekayu lowland forest, Hulu Terengganu, Peninsular Malaysia Author Badli-Sham, Baizul Hafsyam https://orcid.org/0000-0003-2106-3361 Biodiversity and Ecology Research Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia Author Syafiq, Muhamad Fatihah https://orcid.org/0000-0002-1185-3653 Biodiversity and Ecology Research Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia Author Aziz, Mohd Shahrizan Azrul Biodiversity and Ecology Research Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia Author Mohd Jalil, Natrah Rafiqah Institute of Tropical Biodiversity and Sustainable Development, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia Author Awang, Muhammad Taufik Biodiversity and Ecology Research Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia Author Othman, Muhammad Nouril Ammin Biodiversity and Ecology Research Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia Author Abdul Aziz, Anis Azira Biodiversity and Ecology Research Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia Author Dzu, Khunirah Biodiversity and Ecology Research Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia Author Abdol Wahab, Nurul Asyikin Biodiversity and Ecology Research Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia Author Jamil, Nor Liyana Biodiversity and Ecology Research Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia Author Ismail, Murni Azima Biodiversity and Ecology Research Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia Author Wan Azman, Wan Ahmad Aidil Biodiversity and Ecology Research Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia Author Xin Wei, Ooi Biodiversity and Ecology Research Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia Author Jamaha, Nur Ain Nabilah Biodiversity and Ecology Research Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia Author Aqmal-Naser, Mohamad https://orcid.org/0000-0002-3103-8373 Biodiversity and Ecology Research Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia & Biodiversity and Ecology Research Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia Author Fahmi-Ahmad, Muhammad https://orcid.org/0000-0002-7815-7054 Biodiversity and Ecology Research Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia Author Shahirah-Ibrahim, Noor https://orcid.org/0000-0002-7629-9489 Academy of Science Malaysia, 902 - 4, Jalam Tun Ismail, 50480 Kuala Lumpur, Malaysia Author Rizal, Syed Ahmad Biodiversity and Ecology Research Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia Author Belabut, Daicus M. https://orcid.org/0000-0001-6150-7532 Forestry Biotechnology Division, Forest Research Institute Malaysia, 52109 Kepong, Selangor, Malaysia Author Kin Onn, Chan https://orcid.org/0000-0001-6270-0983 Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia Author Quah, Evan Seng Huat https://orcid.org/0000-0002-5357-1953 Lee Kong Chian Natural History Museum, National University of Singapore, 2 Conservatory Drive, 117377 Singapore, Singapore Author Grismer, Larry Lee https://orcid.org/0000-0001-8422-3698 Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, 88400 Kota Kinabalu, Sabah, Malaysia Author Ahmad, Amirrudin B. https://orcid.org/0000-0002-7775-1289 Biodiversity and Ecology Research Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia & Biodiversity and Ecology Research Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia amirrudin@umt.edu.my text ZooKeys 2023 2023-03-31 1157 43 93 http://dx.doi.org/10.3897/zookeys.1157.95873 journal article http://dx.doi.org/10.3897/zookeys.1157.95873 1313-2970-1157-43 D4FDD1DBB1EA46F3B6388A3D888F148E CFF2494363EF55E7BE799945FA025A68 Pelobatrachus nasutus (Schlegel, 1858) Fig. 7D Malayan Horned Frog Examined specimens. Three specimens were collected from SLF (Juveniles: UMTZC1103 and UMTZC1187, SVL = 36-38 mm; Male: UMTZC1494, SVL = 94 mm). Identification. Morphological characters of the specimens agreed well with the description by Berry (1975) and Sumarli et al. (2015) . Size (SVL: 36-38 mm, n = 2 juveniles; 94 mm, n = 1 male); large heads; tongue completely or partly notched posteriorly; vomerine teeth present; snout truncate and projecting beyond the lower jaw; upper eyelids and snout form pointed dermal projection; tympanum distinct; distinct supratympanic fold from eyes to shoulders; subarticular tubercles indistinct; metacarpal tubercles distinct; dorsum smooth with few tubercles; two pairs of longitudinal skin fold on back reaching until the vent; venter smooth with small tubercles. Remarks. Pelobatrachus nasutus were found on the forest floor at various locations: UMTZC1494, UMTZC1103 and UMTZC1187 were collected from the small stream of Peres Rivers where it was sighted on the forest floor. Afterwards, two individuals were observed on the forest floor beside the recreational trail at SRF, and three individuals were observed amongst the dead leaves at the banks of the small stream of the Peres River. Loud callings can be heard typically near the monsoon season.