taxonID	type	description	language	source
E90E87809C70140CFF3FFEE381F5F9DA.taxon	description	Figs. 1, 2 a, 3	en	Ng, Heok Hee (2025): Glyptothorax sulculus, a new catfish from the Cambodian Mekong (Actinopterygii: Sisoridae). Zootaxa 5728 (2): 375-384, DOI: 10.11646/zootaxa.5728.2.8, URL: https://doi.org/10.11646/zootaxa.5728.2.8
E90E87809C70140CFF3FFEE381F5F9DA.taxon	materials_examined	Holotype. UMMZ 232576, 51.3 mm SL; Cambodia: Stung Treng Province, Mekong drainage, O Pon Moang, small stream 13 km downstream along Mekong River from Stung Treng, 13 ° 25 ' N 105 ° 57 ' E; W. J. Rainboth & C. Rotha, 16 February 1995.	en	Ng, Heok Hee (2025): Glyptothorax sulculus, a new catfish from the Cambodian Mekong (Actinopterygii: Sisoridae). Zootaxa 5728 (2): 375-384, DOI: 10.11646/zootaxa.5728.2.8, URL: https://doi.org/10.11646/zootaxa.5728.2.8
E90E87809C70140CFF3FFEE381F5F9DA.taxon	diagnosis	Diagnosis. G lyptothorax sulculus is distinguished from all Mekong drainage congeners except G. carnatus, G. cf. platypogonides and G. rhadinus by its color pattern of two indistinct dark saddles on body connected by an indistinct dark midlateral stripe, forming an elongate pale ovoid patch on the dorsolateral surface of body, and the absence of a distinctly pale nuchal shield (vs. two indistinct dark saddles often accompanied by irregular dark spots and blotches on body and distinctly pale nuchal shield in G. filicatus, G. horai and G. macromaculatus or uniformly dark-colored body with or without pale midlateral and mid-dorsal longitudinal stripes in G. deqinensis, G. forabilis, G. irroratus, G. laosensis, G. longinema and G. porrectus), a longer dorsal spine (18.7 % SL vs. 11.8 – 16.9) and a larger eye (14 % HL vs. 8 – 12). It differs from G. carnatus, G. cf. platypogonides and G. rhadinus in having the area between the anterior and posterior fontanels on the neurocranium sharply delineated by the absence of tubercles on the dorsal surface of the head (vs. this area indistinctly delineated; Fig. 2), and broader lateral processes of the nuchal plates set at about 90 ° to the median axis (vs. narrower lateral processes set about 100 – 110 ° to the median axis; Fig. 2). The following combination of characters further distinguishes G. sulculus from Mekong congeners: TAA with its width 1.7 times in its length, lacking both anteromedial striae and a medial pit; dorsal to adipose distance 15.6 % SL (vs 17.2 – 28.5, except in G. rhadinus); caudal peduncle length 17.3 % SL (vs 19.1 – 25.8 in G. forabilis, G. laosensis and G. porrectus); caudal peduncle depth 2.9 (vs 1.9 – 2.7, except in G. carnatus) times in body depth at dorsal origin.	en	Ng, Heok Hee (2025): Glyptothorax sulculus, a new catfish from the Cambodian Mekong (Actinopterygii: Sisoridae). Zootaxa 5728 (2): 375-384, DOI: 10.11646/zootaxa.5728.2.8, URL: https://doi.org/10.11646/zootaxa.5728.2.8
E90E87809C70140CFF3FFEE381F5F9DA.taxon	description	Description. Morphometric data in Table 1. Head depressed; body subcylindrical. Dorsal profile rising evenly from tip of snout to origin of dorsal fin, then sloping gently ventrally from origin of dorsal fin to end of caudal peduncle. Ventral profile straight to anal-fin base, then sloping gently dorsally from anal-fin base to end of caudal peduncle. Anus located at vertical through posterior third of adpressed pelvic fin; urogenital openings located at three-quarters of distance between bases of last pelvic-fin ray and first anal-fin ray. Skin on sides of body and caudal peduncle tuberculate. Lateral line complete, midlateral. Head depressed, broad, triangular when viewed laterally. Snout prominent. Anterior and posterior nares large, separated only by base of nasal barbel. Gill opening broad, extending from ventral margin of post-temporal to isthmus. Bony elements of dorsal surface of head covered with thick, tuberculate skin. Eye ovoid, horizontal axis longest; located entirely in dorsal half of head. Barbels in four pairs. Maxillary barbel long, slender, extending to base of pectoral-fin spine. Nasal barbel slender, extending to just over halfway between its base and anterior orbital margin. Inner mandibular-barbel extending to midway between its base and that of pectoral spine. Outer mandibular barbel extending to three quarters of distance between its base and that of pectoral spine. Mouth inferior, premaxillary tooth band partially (approximately half) exposed with mouth closed. Oral teeth small, villiform, in irregular rows on all tooth-bearing surfaces. Premaxillary teeth appearing in single broad semilunate band. Dentary teeth in a single crescentic band, consisting of two separate halves tightly bound at midline. Thoracic adhesive apparatus (TAA) consisting of striae in a slightly obovate field (Fig. 3) extending from isthmus to slightly beyond posterior limit of pectoral-fin base; anterolateral edges of adhesive apparatus straight. Thoracic adhesive apparatus lacking distinct medial pit, its width 1.7 times in its length. Dorsal fin located above anterior two-fifths of body, with I, 6 rays; fin margin concave; spine slightly curved, posterior margin with 4 weak serrations. Adipose fin with anterior and posterior margins nearly straight. Caudal fin strongly forked, with lobes of nearly equal length and i, 7,8, i principal rays. Procurrent rays symmetrical, extending only slightly anterior to fin base. Anal-fin base vertically opposite adipose-fin base. Anal fin with nearly straight anterior and concave posterior margin; with iv, 9, i rays. Pelvic-fin origin very slightly anterior to vertical through posterior extremity of dorsal-fin base. Pelvic fin with straight posterior margin and i, 5 rays; tip of adpressed fin just reaching anal-fin origin. Pectoral fin with I, 6, i rays; posterior fin margin concave; anterior spine margin smooth, posterior margin with 11 serrations. Colour: Dorsal and lateral surfaces of head, and body brown, fading to beige on ventral surfaces. Darker colour on dorsal surface of interdorsal region, with dark, saddle-shaped markings on lateral surface of body below dorsal and adipose fins. Dark, diffuse midlateral stripe running along lateral line, coalescing with dark markings on lateral surfaces of body below dorsal and adipose fins to form pale, elongate oval above lateral line and between dorsal and adipose fins. Dorsal and lateral surfaces of body with scattered dark brown spots. Dorsal fin hyaline, with brown base and irregular brown brand on middle third of fin. Pectoral fin hyaline, with brown base and brown melanophores forming irregular transverse band subdistally. Pelvic fin hyaline, with brown melanophores forming diffuse brown band in middle third of fin. Anal fin hyaline, with brown base in anterior third of fin and brown melanophores forming diffuse brown band in middle third of fin. Adipose fin brown, with scattered dark spots and with hyaline distal margin. Caudal fin lobes mostly brown, faintly mottled with dark spots; tips and much of lobes and median fin-rays hyaline. Maxillary barbel brown dorsally, beige ventrally. Habitat. The type locality is a stream about 15 m wide, with moderate current and clear water. The substrate consisted of boulders, sand and gravel. Other fish species occurring syntopically include: Esomus metallicus, Puntigrus partipentazona, Rasbora borapetensis, R. dusonensis, R. paviana, Balitoropsis zollingeri, Homalopteroides smithi, Pseudohomaloptera leonardi, Syncrossus helodes, Clarias aff. batrachus, Dermogenys siamensis and Chaudhuria cf. caudata.	en	Ng, Heok Hee (2025): Glyptothorax sulculus, a new catfish from the Cambodian Mekong (Actinopterygii: Sisoridae). Zootaxa 5728 (2): 375-384, DOI: 10.11646/zootaxa.5728.2.8, URL: https://doi.org/10.11646/zootaxa.5728.2.8
E90E87809C70140CFF3FFEE381F5F9DA.taxon	distribution	Distribution. Glyptothorax sulculus is known only from the type locality in the Mekong River drainage of nothern Cambodia (Fig. 4).	en	Ng, Heok Hee (2025): Glyptothorax sulculus, a new catfish from the Cambodian Mekong (Actinopterygii: Sisoridae). Zootaxa 5728 (2): 375-384, DOI: 10.11646/zootaxa.5728.2.8, URL: https://doi.org/10.11646/zootaxa.5728.2.8
E90E87809C70140CFF3FFEE381F5F9DA.taxon	etymology	Etymology. The species epithet is the diminutive form of the Latin noun sulcus, meaning a furrow. The name refers to the anterior and posterior fontanels on the neurocranium being sharply delineated by the absence of tubercles, a diagnostic character of this species.	en	Ng, Heok Hee (2025): Glyptothorax sulculus, a new catfish from the Cambodian Mekong (Actinopterygii: Sisoridae). Zootaxa 5728 (2): 375-384, DOI: 10.11646/zootaxa.5728.2.8, URL: https://doi.org/10.11646/zootaxa.5728.2.8
E90E87809C77140EFF3FF96080ADFED6.taxon	materials_examined	MHNG 2800.071 (holotype), 59.6 mm SL; CMK 23092 (3 paratypes), 55.2 – 62.2 mm SL; ZRC 68415 (1 paratype), 59.0 mm SL; Laos: Savannakhet Province, Xaybouli District, Mekong drainage, Xe Bangfai sub-drainage, Xe Noy at Keng Boua, upstream of Ban Dongmarfai, 6 km on road E then 1 km on track N, 17 ° 04 ' 21 " N 105 ° 03 ' 27 " E. CMK 20984 (1 paratype), 62.1 mm SL; ZRC 68413 (1 paratype), 60.5 mm SL; Laos: Phongsali Province, Muang Khoa District, Mekong drainage, Nam Ou, rapids upstream of Ban Houayphouk, downstream of Ban Pakban, 21 ° 14 ' 00 " N 102 ° 28 ' 10 " E. CMK 12275 (1 paratype), 63.3 mm SL; Laos: Khammouan Province, Mekong drainage, Xe Bangfai about 1 km upstream of confluence with unnamed stream descending from Phou Taloun, 17 ° 09 ' 42 " N 106 ° 12 ' 33 " E. CMK 23128 (2 paratypes), 44.3 – 46.0 mm SL; Laos: Savannakhet Province, Xaybouli District, Mekong drainage, Xe Bangfai sub-drainage, Xe Noy at Keng Xieng Khai, upstream of Ban Xieng Khai, 17 ° 04 ' 29 " N 105 ° 06 ' 14 " E. CMK 12608 (3 paratypes), 42.9 – 58.0 mm SL; Laos: Khammouan Province, Mekong drainage, Xe Bangfai about 3 km upriver of Ban Pakphanang, 17 ° 24 ' 20 " N 105 ° 45 ' 50 " E. UMMZ 234707 (3 paratypes), 41.8 – 63.7 mm SL; Cambodia: Stung Treng Province, Mekong drainage, Mekong River, shallow channel across the S end of Kaoh Han, 14 km NE of Stung Treng, 13 ° 37 ' N 106 ° 03 ' E.	en	Ng, Heok Hee (2025): Glyptothorax sulculus, a new catfish from the Cambodian Mekong (Actinopterygii: Sisoridae). Zootaxa 5728 (2): 375-384, DOI: 10.11646/zootaxa.5728.2.8, URL: https://doi.org/10.11646/zootaxa.5728.2.8
E90E87809C76140EFF6FFEE287D2FE42.taxon	materials_examined	KIZ 1974000937 – 1974000938 (2 paratypes), 89.2 – 89.7 mm SL; China: Yunnan Province, Deqin County, Yanmen. KIZ 1980001799 (1 paratype), 85.1 mm SL; China: Yunnan Province, Zidongjiang. BMNH 1987.9.17.5 (1 paratype), 74.0 mm SL; China: Yunnan, Weixi County, Baijixun Township.	en	Ng, Heok Hee (2025): Glyptothorax sulculus, a new catfish from the Cambodian Mekong (Actinopterygii: Sisoridae). Zootaxa 5728 (2): 375-384, DOI: 10.11646/zootaxa.5728.2.8, URL: https://doi.org/10.11646/zootaxa.5728.2.8
E90E87809C76140EFF6FFE5682E1FE3E.taxon	materials_examined	ZFMK 34398 (holotype), 83.3 mm SL; UMMZ 245668 (1 paratype), 69.0 mm SL; ZFMK 34399 (1 paratype), 91.9 mm SL; Vietnam: Thua Thien Hue Province, stream draining to Se San River, 12 km E of A Luoi, 16 ° 20 ' 34 " N 107 ° 09 ' 25 " E.	en	Ng, Heok Hee (2025): Glyptothorax sulculus, a new catfish from the Cambodian Mekong (Actinopterygii: Sisoridae). Zootaxa 5728 (2): 375-384, DOI: 10.11646/zootaxa.5728.2.8, URL: https://doi.org/10.11646/zootaxa.5728.2.8
E90E87809C76140EFF6FFE3A82F1FD06.taxon	materials_examined	MHNG 2766.054 (holotype), 76.7 mm SL; CMK 23452 (6 paratypes), 52.3 – 89.6 mm SL; Laos: Champasak Province, Pakxong District, Bolaven Plateau, Xe Katam, about 2 km upstream of bridge on road from Pakxong to Attapeu, 15 ° 07 ' 05 " N 106 ° 37 ' 01 " E, 531 m asl. CMK 23444 (12 paratypes), 39.8 – 75.7 mm SL; ZRC 55628 (3 paratypes), 48.2 – 62.8 mm SL; Laos: Champasak Province, Pakxong District, Bolaven Plateau, Houay Makchan-Gnai (tributary of Xe Nam Noy) at bridge on road from Ban Ta-Od to Ban Nongphannouan, 15 ° 04 ' 15 " N 106 ° 32 ' 34 " E, 784 m asl.	en	Ng, Heok Hee (2025): Glyptothorax sulculus, a new catfish from the Cambodian Mekong (Actinopterygii: Sisoridae). Zootaxa 5728 (2): 375-384, DOI: 10.11646/zootaxa.5728.2.8, URL: https://doi.org/10.11646/zootaxa.5728.2.8
E90E87809C76140EFF6FFD12815BFC6E.taxon	materials_examined	CMK 25949 (8), 61.9 – 114.2 mm SL; Laos: Louang Namtha Province, Nam Ma drainage, Na Ma Oum, a branch of Nam Ma downstream of Ban Phang Thong, 670 m asl, 21 ° 04 ' 55 " N 101 ° 03 ' 37 " E. CMK 15561 (11), 21.3 – 87.4 mm SL; Laos: Louang Phabang Province, Nam Xuang drainage, Nam Soui downstream of Ban Sakok, 20 ° 10 ' 57 " N 103 ° 11 ' 13 " E. CMK 23729 (41), 27.9 – 127.3 mm SL; Laos: Vientiane Province, Nam Ngum drainage, Nam Song sub-drainage, Nam Sanaen at confluence with Houay Nam Noi, a tributary of Nam Song, 401 m asl, 19 ° 09 ' 26 " N 102 ° 30 ' 42 " E.	en	Ng, Heok Hee (2025): Glyptothorax sulculus, a new catfish from the Cambodian Mekong (Actinopterygii: Sisoridae). Zootaxa 5728 (2): 375-384, DOI: 10.11646/zootaxa.5728.2.8, URL: https://doi.org/10.11646/zootaxa.5728.2.8
E90E87809C76140EFF6FFC6A82F7F952.taxon	materials_examined	MHNG 2788.003 (holotype), 69.6 mm SL; CMK 24384 (12 paratypes), 62.2 – 83.9 mm SL; Laos: Saysomboune Province, Nam Ngiep at Keng Chong rapids, about 4.5 km upstream of Ban Sopyouak, 239 m asl, 18 ° 44 ' 33 " N 103 ° 25 ' 24 " E. CMK 14107 (1 paratype), 67.1 mm SL; Laos: Phongsali Province, Nam Ou at Keng Pang rapids, about 8 km SSE of Ban Hatxa, 21 ° 40 ' 31 " N 102 ° 14 ' 55 " E. UMMZ 240922 (2 paratypes), 77.2 – 82.5 mm SL; Laos: Oudomxai Province, Nam Phak, 32 km NE of Muang Xai, 20 ° 53 ' N 102 ° 10 ' E. UMMZ 241062 (1 paratype), 63.4 mm SL; Laos: Luang Prabang Province, Nam Xuang, 4 km downstream of Ban Pak Kung, 20 ° 03 ' N 102 ° 22 ' E. UMMZ 240664 (1 paratype), 66.0 mm SL; Laos: Luang Prabang Province, Nam Xuang at Ban Pak Xuang, 19 ° 58 ' N 102 ° 30 ' E. UMMZ 240815 (4 paratypes), 57.1 – 82.0 mm SL; Laos: Oudomxai Province, Huay Xeng at confluence with Mekong River, 19 ° 53 ' N 101 ° 07 ' E. UMMZ 241857 (1 paratype), 71.3 mm SL; Laos: Luang Prabang Province, Nam Phouan at mouth on Mekong River, 19 ° 51 ' N 101 ° 36 ' E. UMMZ 241106 (12 paratypes), 50.3 – 62.6 mm SL; Laos: Luang Prabang Province, Nam Khan at Keng Noun, 10 km E of Luang Prabang, 19 ° 50 ' N 102 ° 46 ' E. CMK 15230 (1 paratype), 70.6 mm SL; Laos: Xiangkhouang Province, Nam Ngum, rapids downstream of Ban Latbouak, 19 ° 36 ' 28 " N 103 ° 14 ' 23 " E. CMK 22633 (17 paratypes), 30.3 – 72.5 mm SL; Laos: Xiangkhouang Province, Nam Ngum upstream of confluence with Nam Ting, 863 m asl, 19 ° 23 ' 51 " N 102 ° 54 ' 51 " E. CMK 13295 (15 paratypes), 32.4 – 50.3 mm SL; Laos: Vientiane Province, Nam Leuk, about 500 m downstream of Tad Leuk waterfall, 18 ° 23 ' 34 " N 103 ° 04 ' 17 " E. CMK 12256 (11 paratypes), 46.4 – 73.0 mm SL; Laos: Khammouan Province, Nam Theun, waterfall about 7 km downstream of Nakai dam, 18 ° 01 ' 40 " N 104 ° 58 ' 54 " E. CMK 20017 (27 paratypes), 31.8 – 76.2 mm SL; Laos: Khammouan Province, Nam Theun at first rapids below Nakai dam, 17 ° 59 ' 50 " N 104 ° 58 ' 11 " E. CMK 12631 (3 paratypes), 53.2 – 62.8 mm SL; Laos: Khammouan Province, Nam Theun at Nakai dam, 17 ° 59 ' 50 " N 104 ° 57 ' 10 " E. ZRC 40309 (2 paratypes), 65.7 – 76.3 mm SL; Laos: Khammouan Province, Nam Theun, Huay Kor near Ban Nam Nien, 17 ° 56 ' N 104 ° 59 ' E.	en	Ng, Heok Hee (2025): Glyptothorax sulculus, a new catfish from the Cambodian Mekong (Actinopterygii: Sisoridae). Zootaxa 5728 (2): 375-384, DOI: 10.11646/zootaxa.5728.2.8, URL: https://doi.org/10.11646/zootaxa.5728.2.8
E90E87809C76140EFF6FF966860EF8E2.taxon	materials_examined	ANSP 59357 (holotype), 41.8 mm SL; Thailand: Chieng Mai. ZRC 67677 (1), 45.0 mm SL; Thailand: Krabi Province, Amphoe Plai Phraya, Tapi drainage, Khao Khen, about 2.6 km S of Plai Phraya, 08 ° 30 ' 30 " N 98 ° 51 ' 59 " E. ZRC 67678 (4), 44.5 – 64.8 mm SL; CMK 29188 (4), 43.1 – 50.3 mm SL; Thailand: Nakhon Si Thammarat Province, Amphoe Chang Klang, Khlong Chandi near Chang Klang, 08 ° 20 ' 29 " N 99 ° 39 ' 16 " E.	en	Ng, Heok Hee (2025): Glyptothorax sulculus, a new catfish from the Cambodian Mekong (Actinopterygii: Sisoridae). Zootaxa 5728 (2): 375-384, DOI: 10.11646/zootaxa.5728.2.8, URL: https://doi.org/10.11646/zootaxa.5728.2.8
E90E87809C761401FF6FF8F68006FF32.taxon	materials_examined	ANSP 59412 (holotype), 51.3 mm SL; Thailand: Bua Yai. UMMZ 241097 (1), 77.8 mm SL; Laos: Louang Phabang Province, Huay Vang at confluence with Nam Ou, across river from Ban Pakchek, 20 ° 11 ' N 102 ° 20 ' E. CMK 19304 (3), 64.3 – 99.7 mm SL; Laos: Khammouan Province, Xe Bangfai at Keng Summou, 17 ° 06 ' 23 " N 105 ° 02 ' 48 " E. CMK 13747 (9), 22.7 – 93.0 mm SL; Laos: Savannakhet Province, Xe Bang Hiang drainage, Xe Pon between rapids upstream and downstream of Ban Fuang, 16 ° 37 ' 06 " N 106 ° 33 ' 30 " E. CMK 15843 (2), 69.1 – 80.0 mm SL; Laos: Sekong Province, Xe Kong at Keng Prao, about 12 km upstream of Muang Kaleum, 15 ° 48 ' 18 " N 106 ° 45 ' 27 " E. ZFMK 24195 (1), 76.0 mm SL; Vietnam: Dac Lac Province, small stream at Ea Nuol about 20 km NW of Buon Ma Thuot, 12 ° 41 ' 35 " N 107 ° 57 ' 44 " E.	en	Ng, Heok Hee (2025): Glyptothorax sulculus, a new catfish from the Cambodian Mekong (Actinopterygii: Sisoridae). Zootaxa 5728 (2): 375-384, DOI: 10.11646/zootaxa.5728.2.8, URL: https://doi.org/10.11646/zootaxa.5728.2.8
E90E87809C791401FF6FFEC687E7FDD2.taxon	materials_examined	KIZ 741097 (holotype), 67.0 mm SL; KIZ 740198 – 740200 (3 paratypes), 55.1 – 58.9 mm SL; China: Yunnan Province, Nujiang Prefecture, Lushui County, Liuku Township, Bijiang. KIZ 1981001381 – 1981001383 (3), 82.3 – 89.1 mm SL; China: Yunnan Province, Nujiang Prefecture, Lushui County. KIZ 2006000865 (1), 87.8 mm SL; KIZ 2006000870 (1), 95.2 mm SL; KIZ 2006000878 (1), 89.0 mm SL; China: Yunnan Province, Baoshan Prefecture, Longlin County, Sanjiangkou. KIZ 2002002337 – 2002002341 (5), 71.8 – 91.0 mm SL; China: Yunnan Province, Lincang Prefecture, Yongde County, Nanting River. CMK 22499 (5), 54.5 – 71.9 mm SL; Laos: Vientiane Province, Nam Lao, downstream of bridge at 7.6 km on road from Ban Xamthong to Ban Longcheng, a stream entering a cave about 2 km downstream of bridge, 950 m asl, 19 ° 09 ' 32 " N 102 ° 52 ' 51 " E.	en	Ng, Heok Hee (2025): Glyptothorax sulculus, a new catfish from the Cambodian Mekong (Actinopterygii: Sisoridae). Zootaxa 5728 (2): 375-384, DOI: 10.11646/zootaxa.5728.2.8, URL: https://doi.org/10.11646/zootaxa.5728.2.8
E90E87809C791401FF6FFDE68124FCDE.taxon	materials_examined	KIZ 1974001228 (holotype), 80.1 mm SL; KIZ 1998004850 – 1998004851 (2), 78.8 – 81.8 mm SL; China: Yunnan Province, Yangbi County. KIZ 2005012203 – 2005012204 (3), 71 – 90.7 mm SL; China: Yunnan Province, Gengma County, Hepai, Dangpa River. KIZ 2007003950 – 2007003952 (3), 77.8 – 111.6 mm SL; China: Yunnan Province, Mengla County, Menglun. CMK 5612 (5), 55.8 – 76.1 mm SL; China: Yunnan Province, Yangbi River from its confluence with Erhai River to about 20 km upstream of Yangbi. ZRC 62839 (8), 31.8 – 89.4 mm SL; China: Yunnan Province, Simao District, Toudao River upstream of Xiaoheijiang, 46 km from Jinggu on Jingpu Highway, 23 ° 21 ' 37 " N 100 ° 55 ' 16 " E.	en	Ng, Heok Hee (2025): Glyptothorax sulculus, a new catfish from the Cambodian Mekong (Actinopterygii: Sisoridae). Zootaxa 5728 (2): 375-384, DOI: 10.11646/zootaxa.5728.2.8, URL: https://doi.org/10.11646/zootaxa.5728.2.8
E90E87809C791401FF6FFCDA8130F99A.taxon	materials_examined	CMK 15134 (1), 74.7 mm SL; Thailand: Kanchanaburi Province, Mae Khlong drainage, Mae Nam U Rong at Ban U Rong, km-stone 7, 9 km from Thong Pha Phum, 68 km to Sangkhlaburi, 14 ° 46 ' 56 " N 98 ° 40 ' 11 " E. CMK 16065 (4), 67.8 – 70.3 mm SL; Thailand: Nan Province, Chao Phraya drainage, Nam Wa at Ban Nam Wa, 18 ° 38 ' 46 " N 101 ° 00 ' 38 " E. CMK 29192 (3), 45.7 – 57.7 mm SL; ZRC 68414 (1), 60.9 mm SL; Laos: Phongsali Province, Muang Khoa District, Mekong drainage, Nam Ou, rapids upstream of Ban Houayphouk, downstream of Ban Pakban, 21 ° 14 ' 00 " N 102 ° 28 ' 10 " E. CMK 13886 (1), 82.3 mm SL; Laos: Louang Phabang Province, Mekong drainage, Mekong River and Nam Ou at Ban Pak Ou, 20 ° 03 ' 19 " N 102 ° 12 ' 43 " E. CMK 13902 (8), 45.2 – 66.7 mm SL; Laos: Louang Phabang Province, Mekong drainage, Nam Xuang at its confluence with Mekong, at Ban Pak Xuang, 19 ° 58 ' 05 " N 102 ° 14 ' 27 " E. UMMZ 240662 (8), 37.1 – 59.5 mm SL; Laos: Louang Phabang Province, Mekong drainage, Nam Xuang at Ban Pak Xuang, 19 ° 58 ' N 102 ° 30 ' E. CMK 29193 (7), 42.3 – 55.5 mm SL; Laos: Khammouan Province, Mekong drainage, Xe Bangfai about 3 km upriver of Ban Pakphanang, 17 ° 24 ' 20 " N 105 ° 45 ' 50 " E. ZRC 41317 (1), 44.4 mm SL; Thailand: Loei Province, Mekong drainage, tributary of Maenam Huang at 17 ° 16 ' 01 " N 101 ° 08 ' 29 " E. CMK 29194 (1), 65.8 mm SL; Laos: Khammouan Province, Mekong drainage, Xe Bangfai about 1 km upstream of confluence with unnamed stream descending from Phou Taloun, 17 ° 09 ' 42 " N 106 ° 12 ' 33 " E. CMK 23930 (1), 56.0 mm SL; Laos: Khammouan Province, Mekong drainage, Xe Bangfai at Keng Keo, about 8 km upriver of bridge at Ban Khouaxe and 1 km downriver of confluence with Nam Xe Noy, 17 ° 05 ' 41 " N 105 ° 02 ' 00 " E. CMK 29195 (1), 70.7 mm SL; Laos: Savannakhet Province, Xaybouli District, Mekong drainage, Xe Bangfai sub-drainage, Xe Noy at Keng Baua, upstream of Ban Dongmarfai, 6 km on road E then 1 km on track N, 17 ° 04 ' 21 " N 105 ° 03 ' 27 " E. CMK 15632 (1), 51.5 mm SL; Laos: Attapeu Province, Mekong drainage, Nam Vong, a tributary of Xe Kaman. 14 ° 56 ' 18 " N 107 ° 08 ' 08 " E. UMMZ 232349 (1), 50.8 mm SL; Cambodia: Stung Treng Province, Mekong drainage, Tonle San rapids, 9 km upstream from confluence with Tonle Kong, 13 ° 34 ' N 106 ° 07 ' E. UMMZ 235669 (3), 32.2 – 47.7 mm SL; Cambodia: Stung Treng Province, Mekong drainage, Tonle Srepok at mouth of Ou Ba Daeum stream, 13 ° 32 ' 13 " N 106 ° 03 ' 41 " E.	en	Ng, Heok Hee (2025): Glyptothorax sulculus, a new catfish from the Cambodian Mekong (Actinopterygii: Sisoridae). Zootaxa 5728 (2): 375-384, DOI: 10.11646/zootaxa.5728.2.8, URL: https://doi.org/10.11646/zootaxa.5728.2.8
E90E87809C791401FF6FF99E8274F816.taxon	materials_examined	MHNG 2766.055 (holotype), 88.7 mm SL; CMK 23420 (10 paratypes), 35.7 – 87.9 mm SL; ZRC 55629 (3), 46.2 – 69.7 mm SL; Laos: Champasak Province, Pakxong District, Bolaven Plateau, Xe Nam Noy at bridge downstream of Xe Pian – Xe Nam Noy dam site, 15 ° 03 ' 34 " N 106 ° 36 ' 08 " E, 708 m asl. UMMZ 238818 (8), 43.9 – 77.8 mm SL; Laos: Champasak Province, Xe Nam Noy at bridge near Ban Latsasin, 15 ° 03 ' 29 " N 106 ° 36 ' 11 " E. CMK 23367 (3 paratypes), 88.7 – 119.4 mm SL; Laos: Champasak Province, Pakxong District, Bolaven Plateau, Xe Nam Noy near confluence with Houay Nam Tang near Tayiksua, 15 ° 05 ' 03 " N 106 ° 35 ' 26 " E. CMK 15514 (2 paratypes), 28.0 – 35.0 mm SL; same locality as holotype, 15 ° 03 ' 25 " N 106 ° 36 ' 11 " E. CMK 23332 (19 paratypes), 34.4 – 79.1 mm SL; Laos: Champasak Province, Pakxong District, Bolaven Plateau, Xe Nam Noy, first rapids downstream of Xe Pian – Xe Namnoy dam site, 15 ° 01 ' 38 " N 106 ° 36 ' 17 " E, 833 masl. CMK 23345 (1 paratype), 44.3 mm SL; Laos: Champasak Province, Pakxong District, Bolaven Plateau, Houay Xoy, a tributary of Xe Nam Noy, 14 ° 52 ' 41 " N 106 ° 34 ' 49 " E.	en	Ng, Heok Hee (2025): Glyptothorax sulculus, a new catfish from the Cambodian Mekong (Actinopterygii: Sisoridae). Zootaxa 5728 (2): 375-384, DOI: 10.11646/zootaxa.5728.2.8, URL: https://doi.org/10.11646/zootaxa.5728.2.8
E90E87809C781400FF6FFF5282EEFE1A.taxon	materials_examined	UMMZ 254757 (holotype), 47.9 mm SL; UMMZ 234522 (3 paratypes), 39.3 – 45.2 mm SL; Cambodia: Kampong Speu Province, Mekong drainage, Stung Prek Thnot at Krong Chbar Mon (Kampong Speu). UMMZ 235646 (1 paratype), 37.9 mm SL; Cambodia: Kandal Province, Mekong drainage, Stung Kandal, 1 km upstream from its junction with Stung Prek Thnot. UMMZ 232269 (1 paratype), 54.1 mm SL; Cambodia: Kandal Province, Mekong drainage, Mekong River 10 km upstream from Stung Treng, 13 ° 37 ' N 106 ° 02 ' E. ZRC 67598 (4 paratypes), 36.2 – 46.2 mm SL; Cambodia: Phnom Penh, Mekong drainage, Stung Prek Thnot at Thma, 11 ° 27 ' 02 " N 104 ° 50 ' 55 " E. ZRC 67596 (2 paratypes), 36.6 – 39.2 mm SL; CMK 29190 (2 paratypes), 33.4 – 33.6 mm SL; Cambodia: Phnom Penh, Mekong drainage, Stung Prek Thnot approximately 1.5 km E of Krang Pongro, 11 ° 26 ' 37 " N 104 ° 49 ' 25 " E.	en	Ng, Heok Hee (2025): Glyptothorax sulculus, a new catfish from the Cambodian Mekong (Actinopterygii: Sisoridae). Zootaxa 5728 (2): 375-384, DOI: 10.11646/zootaxa.5728.2.8, URL: https://doi.org/10.11646/zootaxa.5728.2.8
