Limnonectes fastigatus Stuart, Schoen, Nelson, Maher, Neang, Rowley & McLeod 2020

Limnonectes fastigatus Stuart, Schoen, Nelson, Maher, Neang, Rowley & McLeod, 2020 Materials Type status: Other material. Occurrence: catalogNumber: IEBR A. 6341 (field No. KCR 2024.28); individualCount: 1; sex: male; lifeStage: adult; occurrenceID: 9ED2E779-A2ED-5DAF-87B6-CA1514E9868E; Taxon: scientificNameID: Limnonectes fastigatus; scientificName: Limnonectes fastigatus; class: Amphibia; order: Anura; family: Dicroglossidae; genus: Limnonectes; specificEpithet: fastigatus; scientificNameAuthorship: Stuart, Schoen, Nelson, Maher, Neang, Rowley, and McLeod, 2020; Location: country: Vietnam; countryCode: VN; stateProvince: Gia Lai; county: Gia Lai; locality: Kon Cha Rang Nature Reserve; verbatimElevation: 937 m; verbatimLatitude: 14°54.042'N; verbatimLongitude: 108°55.376'E; Event: eventDate: April 25, 2024; eventRemarks: collected by TQ Phan and HTL Le; Record Level: language: en; collectionCode: Amphibians; basisOfRecord: PreservedSpecimen Type status: Other material. Occurrence: catalogNumber: IEBR A. 6342 (field No. KCR 2024.53); individualCount: 1; sex: male; lifeStage: adult; occurrenceID: 694FD8A2-EECD-5164-A083-9F03C8F31082; Taxon: scientificNameID: Limnonectes fastigatus; scientificName: Limnonectes fastigatus; class: Amphibia; order: Anura; family: Dicroglossidae; genus: Limnonectes; specificEpithet: fastigatus; scientificNameAuthorship: Stuart, Schoen, Nelson, Maher, Neang, Rowley, and McLeod, 2020; Location: country: Vietnam; countryCode: VN; stateProvince: Gia Lai; county: Gia Lai; locality: Kon Cha Rang Nature Reserve; verbatimElevation: 937 m; verbatimLatitude: 14°54.042'N; verbatimLongitude: 108°55.376'E; Event: eventDate: April 25, 2024; eventRemarks: collected by TQ Phan and HTL Le; Record Level: language: en; collectionCode: Amphibians; basisOfRecord: PreservedSpecimen Description One sequence of 560 bps (16 S gene) from specimen IEBR A. 6341 (GenBank accession number PV 444293) of Limnonectes specimen from Kon Cha Rang Nature Reserve, Gia Lai Province was similar (98.2 %) to the available sequence of L. fastigatus (accession number MT 459155) on GenBank. Morphological characters of specimens from Gia Lai Province agreed with the descriptions of Stuart et al. (2020) and Pham et al. (2022). Size large (SVL 58.9-68.6 mm in males, n = 2), habitus robust with moderately enlarged head (HL / SVL 0.43-0.45, HW / SVL 0.46-0.48 in males); head width broader than long (HL 26.3-29.8 mm, HW 27.1-32.6 mm, n = 2); snout round anteriorly in dorsal view, projecting beyond lower jaw; nostril lateral, about mid-way between snout tip and eye (NS 4.1-4.8 mm, EN 4.4-5.4 mm in males); canthus rostralis indistinct; loreal region oblique and slightly concave; rostral length greater than eye diameter (RL 8.5-10.2 mm, ED 7.1-8.0 mm in males); tympanum invisible; vomerine teeth in two oblique ridges; tongue cordiform, notched posteriorly; lower jaw with two tooth-like, odontoid processes robust thin and elongate with rounded tips; lacking vocal sacs in males (Table 1 and Fig. 3). Arms short; upper arm length (UAL 11.8-14.3 mm in males), forearm length (FAL 23.1-29.1 mm in males); fingers free of webbing; dermal ridge on sides of fingers II and III; tips of fingers blunt, not expanded; inner metatarsal tubercle large, oval; outer metatarsal tubercle small, elongate; finger I of males with nuptial pad, composed of minute spines on the dorsal surface and medial edge (Fig. 4). Tibia length shorter than thigh length (FeL 27.2-31.1 mm, TbL 26.1-29.8 mm in males), longer than wide (TbL / TbW 2.33-2.42 in males); tips of toes blunt, slightly round; toes webbed to the middle of terminal phalanx at base of toe pad; webbing well developed; dermal ridge on outer sides of toes I and V; inner metatarsal tubercle elongate; outer metatarsal tubercle absent; tibio-tarsal articulation reaching behind the eye (Fig. 4). Skin texture in life. Dorsal surface of head and body crenulate; small tubercles on the upper eyelid; flanks, around cloaca and dorsal surface of limbs and thighs with small tubercles; supratympanic fold distinct, extending from eye to angle of the jaw; dorsolateral fold absent; dorsal surface of tibia and foot distinctly tuberculate, covered with moderately dense, small, tubercles; throat, chest, belly and ventral surface of thighs smooth. Colouration in life. Iris light brass with dark grey-brown lines bisecting eye vertically and horizontally through pupil; head with a pale yellow bar in the anterior interorbital region and a narrow dark brown bar in the posterior interorbital region; dorsum and flanks with dark grey-brown marking; lips with dark bars; supratympanic fold black; dorsal surface of limbs irregular, yellowish-brown with dark crossbars; ventral surface of limbs, throat and chest white with brown markings; belly immaculate white; toe webbing brown; the tip of fingers and toes white (Fig. 3). Distribution In Vietnam, this species was recorded in Kon Tum Province (Pham et al. 2022). Elsewhere, the species is known from Cambodia (Stuart et al. 2020). This is the first record of L. fastigatus from Gia Lai Province. Ecology The frogs were found between 19: 00 and 23: 00 h in the water of rocky streams or on the ground. The surrounding habitat was a mixed secondary evergreen forest of the large, medium and small hardwoods and shrubs. Air temperature was 18–28 ° C and relative humidity was 76–86 %.