Indosylvirana nicobariensis (Stoliczka, 1870)

Badli-Sham, Baizul Hafsyam, Syafiq, Muhamad Fatihah, Aziz, Mohd Shahrizan Azrul, Mohd Jalil, Natrah Rafiqah, Awang, Muhammad Taufik, Othman, Muhammad Nouril Ammin, Abdul Aziz, Anis Azira, Dzu, Khunirah, Abdol Wahab, Nurul Asyikin, Jamil, Nor Liyana, Ismail, Murni Azima, Wan Azman, Wan Ahmad Aidil, Xin Wei, Ooi, Jamaha, Nur Ain Nabilah, Aqmal-Naser, Mohamad, Fahmi-Ahmad, Muhammad, Shahirah-Ibrahim, Noor, Rizal, Syed Ahmad, Belabut, Daicus M., Kin Onn, Chan, Quah, Evan Seng Huat, Grismer, Larry Lee & Ahmad, Amirrudin B., 2023, A decade of amphibian studies (Animalia, Amphibia) at Sekayu lowland forest, Hulu Terengganu, Peninsular Malaysia, ZooKeys 1157, pp. 43-93 : 43

Indosylvirana nicobariensis (Stoliczka, 1870)

Fig. 8F Nicobar Island Frog

Examined specimens.

Three specimens were collected from SRF consisted of one male (UMTZC1571, SVL = 50 mm) and two females (UMTZC1563 and UMTZC1676, SVL = 42-43 mm).

Identification.

Morphological characters of the specimens agreed well with the description by Berry (1975) and Shahriza and Ibrahim (2014). Size (SVL: 50 mm, n =1 male; 42-43 mm, n = 2 females); vomerine teeth in two oblique series between choanae; head longer than wide; snout pointed; tympanum distinct; supratympanic fold absent; first finger longer (UMTZC1571) or equal (UMTZC1563) with second; digit tips expended into small discs bearing circum-marginal grooves; nuptial pad present on first fingers in males; dorsum skin granular; narrowed dorsolateral folds; gravid female with eggs on translucent side of belly.

Remarks.

This species was common at the Herbal Park in SRF. The species can be observed perching on rock surfaces at artificial ponds and is abundant at the start of monsoon season. Indosylvirana nicobariensis is a pond-breeding frog and can inhabit both natural and altered habitats ( Lalremsanga et al. 2016).

Figures

Figure 8. A Amolops gerutu B Chalcorana labialis (pale yellow colouration) C C. labialis (brown colouration) D Humerana miopus E Hylarana erythraea F Indosylvirana nicobariensis G Odorrana hosii H Pulchrana glandulosa I P. laterimaculata J P. sundabarat (orange dorsolateral stripe) K P. sundabarat (yellow dorsolateral stripe) and L Sylvirana malayana.