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> Gobiiformes (Gobies) > Gobiidae (Gobies) > Gobionellinae
Etymology: Rhinogobius:Greek, rhinos = nose + Latin, gobius = gudgeon (Ref. 45335); tandikan:Named after the local name of Palawan peacock-pheasant, Polyplectron napoleonis Lesson, known as a symbol of Puerto Princesa City and locally known as Tandikan; referring to the blue markings on the body, suggestive of the plumage of the Palawan peacock-pheasant; noun in apposition.
เงี่ยงครีบหลัง (รวม) : 7; ก้านครีบอ่อนที่หาง (รวม) : 8; เงี่ยงครีบก้น: 1; ก้านครีบอ่อนที่ก้น: 8; สัตว์มีกระดูกสันหลัง: 26. This species is distinguished by the following characters pectoral fin 16-17 rays; nape and posterior part of occipital region covered by cycloid scales with the scaled area extending anteriorly to around a vertical line through posterior margin of preopercle or a little posterior to this line; longitudinal scales 29-34, predorsal scales 5-13; total vertebrae 26; cephalic sensory pore system usually with B´, C, D(S), E, F, H´, K´, L´, M´, N, and O´, but often lacking one or both side(s) of pore C; cheek with transverse rows of sensory papillae. Colouration: when preserved, the lateral and dorsal sides of body with no mesh-like markings, obscure markings on cheek, and upper half of pectoral fin with dark brown band vertically across proximal part; when fresh, pectoral-fin base with a bright white vertical band reaching near bottom of fin (Ref. 125663). Cross section: oval.
This species is found only in the Cayulo River which is a small stream (length approximately 4 km including 1 km of an estuary) flowing into Ulugan Bay on South China Sea-side of the island. The stream system is surrounded by mountains of about 200-400 m above sea level. The Cayulo Falls is composed of a series of small waterfalls, located at the middle reaches of this stream and the species was found at both the lower and upper reaches of this waterfall, as well as pools in the middle of the falls. It was abundant in this site with many other goby species, cyprinids, and a jungle perch species (Ref. 125663).
Maeda, K., C. Shinzato, R. Koyanagi, T. Kunishima, H. Kobayashi, N. Satoh and H.P. Palla, 2021. Two new species of Rhinogobius (Gobiiformes: Oxudercidae) from Palawan, Philippines, with their phylogenetic placement. Zootaxa 5068(1):81-98. (Ref. 125663)
สถานะบัญชีแดงของ IUCN (Ref. 130435: Version 2025-2 (Global))
ดัชนีความหลากหลายทางวิวัฒนาการ (อ้างอิง 82804): PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00813 (0.00356 - 0.01856), b=3.08 (2.91 - 3.25), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
ระดับชั้นอาหาร (อ้างอิง 69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
ความสามารถในการกลับคืนสู่ปกติ (อ้างอิง 120179): ความสูง, เวลาต่ำสุดที่จะทำให้ประชากรเพิ่มขึ้นเป็น 2 เท่าใช้เวลาน้อยกว่า 15 เดือน (Preliminary K or Fecundity.).
ความเสี่ยงต่อการตกปลา (Ref. 59153): Low vulnerability (10 of 100). 🛈
