taxonID	type	description	language	source
09A5260E31A15CBAA44DDF3A92883500.taxon	description	Table 1, Figs 2, 3 A – C, 4 A	en	Poyarkov, Nikolay A., Bragin, Andrey M., Nguyen, Tan Van (2024): A new endemic insular species of the genus Colubroelaps (Squamata, Serpentes, Colubroidea) from Khanh Hoa Province, Vietnam. Herpetozoa 37: 379-390, DOI: 10.3897/herpetozoa.37.e137809
09A5260E31A15CBAA44DDF3A92883500.taxon	diagnosis	Diagnosis. Colubroelaps adleri sp. nov. can be distinguished from C. nguyenvansangi by the following combination of morphological characters: body size small (TL 402 mm); tail relatively short (ratio TaL / TL 0.10); dorsal scales in 14 – 14 – 14 rows; supralabials six, third and fourth entering orbit; infralabials seven; loreal present; ventral scales 234; subcaudals 30, all divided; cloacal plate divided; dorsal coloration pale brown with narrow and interrupted dark stripe along spine; body flanks dark gray lacking bluish iridescence; ventrally uniform off-white; head black with rostral, nasals, prefrontals, preoculars, loreal, and the two anterior supralabials, as well as the anterior parts of supraoculars and frontal shields dirty yellowish-brown with dark brown spots.	en	Poyarkov, Nikolay A., Bragin, Andrey M., Nguyen, Tan Van (2024): A new endemic insular species of the genus Colubroelaps (Squamata, Serpentes, Colubroidea) from Khanh Hoa Province, Vietnam. Herpetozoa 37: 379-390, DOI: 10.3897/herpetozoa.37.e137809
09A5260E31A15CBAA44DDF3A92883500.taxon	description	Description of the holotype. Adult female specimen in a good state of preservation (Fig. 2). Body strongly elongated, very thin, vermiform, round in cross-section. Tail obtusely rounded, comparatively short, the tip of tail blunt (SVL 362 mm; TaL 40.2 mm; TL 402.2 mm; ratio TaL / TL 0.10) (Fig. 2 E – G). Head very small, rounded, slightly dorso-ventrally depressed, covered by large, regular, symmetric shields (Figs 2 A – D, 3 A – C), not distinct from the neck (HL 7.99 mm; HW 5.16 mm; ratio HW / HL 0.65). Snout wide, short, bluntly rounded in dorsal view (Fig. 2 A, B), slightly tapering in lateral view (Fig. 2 C, D). Rostral barely visible in dorsal aspect, triangular (Figs 2 A, 3 A). Eyes very small with round pupils (ED 0.51 mm, EN 1.46 mm, SnL 2.78 mm) (Fig. 2 C, D). Single nasal on each side of head (1 / 1 nasals); nostril oval-shaped, with horizontal orienatation, completely enclosed in nasal scale, located closer to the posterior edge of nasal (Figs 2 C, D, 3 B); single (1 / 1) loreal, small, almost triangular in shape, shorter than the eye diameter, in contact with nasal, 1 st and 2 nd supralabial, preocular, prefrontal and internasal; single (1 / 1) preocular, large, elongated pentagonal in shape, subequal to the eye diameter, in contact with 2 nd and 3 rd supralabial, the orbit, supraocular, prefrontal and loreal; single (1 / 1) postocular, trapezoidal in shape, smaller than the eye diameter, in contact with 4 th supralabial, parietal, supraocular and the orbit; single (1 / 1) supraocular, large and wide, ca. twice longer than the eye diameter, in contact with the orbit, postocular, parietal, frontal, prefrontal and preocular (Figs 2 C, D, 3 B). Six supralabials on each side of the head (6 / 6), fourth one the largest, third and fourth supralabials in contact with eye, posterior edge of fourth supralabial in contact with anterior temporal, separating fifth supralabial from parietal; fourth supralabial in contact with parietal, postocular, and anterior temporal (Figs 2 C, D, 3 A); seven (7 / 7) infralabials, the anterior-most pair in contact with each other behind the mental (Figs 2 B, 3 C); the first four pairs of infralabials in contact with the anterior pair of chin shields (Figs 2 B, 3 C); fourth and fifth infralabials in contact with the posterior pair of chin shields (Figs 2 B, 3 C). Three gular scales aligned between the chin shields and the first preventral (Figs 2 B, 3 C). One pair of enlarged internasals, in contact with each other; one pair of enlarged prefrontals, in contact with each other; one wide, pentagonal frontal shield; one pair of wide, triangular parietals, in contact with each other, anteriorly separated by the protruding posterior edge of frontal (Figs 2 A, 3 B), posteriorly barely extending beyond posterior edges of upper posterior temporals (Fig. 3 B). Single (1 / 1) anterior temporal, quadrangular in shape; two (2 / 2) posterior temporals, lower one the largest, two and a half times larger than upper posterior temporal (Fig. 3 A, B), upper one rectangular-shaped, narrow, notably protruding beyond the upper edge of lower posterior temporal (Figs 2 C, D, 3 B), in dorsal aspect notably protruding beyond the posterior edge of parietal (Fig. 3 B). Dorsal scales in 14 – 14 – 14 rows. Dorsal scales rhomboid, tile-shaped, all smooth, and of the same size (Fig. 2 G). Ventrals 234; cloacal plate divided (Fig. 2 E); 30 subcaudals, all divided (Fig. 2 E, F).	en	Poyarkov, Nikolay A., Bragin, Andrey M., Nguyen, Tan Van (2024): A new endemic insular species of the genus Colubroelaps (Squamata, Serpentes, Colubroidea) from Khanh Hoa Province, Vietnam. Herpetozoa 37: 379-390, DOI: 10.3897/herpetozoa.37.e137809
09A5260E31A15CBAA44DDF3A92883500.taxon	etymology	Etymology. The species epithet ‘ adleri ’ is a patronymic adjective in genitive singular. We name the new species in honor of Dr. Kraig Adler, Professor Emeritus at Cornell University (New York, USA), in recognition of his outstanding support to the international herpetological community as well as his remarkable scientific contribution to Asian herpetology. We suggest the following common names for the new species: “ Adler’s lace snake ” (in English), “ Shnurkovaya zmeya Adlera ” (Шнурковая змея Адлера, in Russian), and “ R ắn h ổ nư ớc Át-Lơ ” (in Vietnamese).	en	Poyarkov, Nikolay A., Bragin, Andrey M., Nguyen, Tan Van (2024): A new endemic insular species of the genus Colubroelaps (Squamata, Serpentes, Colubroidea) from Khanh Hoa Province, Vietnam. Herpetozoa 37: 379-390, DOI: 10.3897/herpetozoa.37.e137809
09A5260E31A15CBAA44DDF3A92883500.taxon	distribution	Distribution and natural history notes. Currently, Colubroelaps adleri sp. nov. is known only from a single locality in secondary dry maritime evergreen forest on Hon Tre Island, Khanh Hoa Province, South Central Coastal Region of Vietnam (Figs 1, 5). The new species is also expected to inhabit other islands of the Nha Trang Bay, though they are much smaller than Hon Tre, and on some of them, forest vegetation has been greatly destroyed. The only known specimen of Colubroelaps adleri sp. nov. was collected during the daytime (14 h 00) while crossing the road. The individual was collected near a garbage dump at the Dam Bay Research Station at 30 m a. s. l. elevation (Fig. 5 A), ca. 10 m from a dry maritime mixed low evergreen forest. The forest near the type locality is dominated by Buchanania reticulata Hance, Choerospondias axillaris (Roxb.) Burtt. & Hill, Pentaspadon annamense (Evrard & Tardieu) Ph ạmh., Spondias pinnata (L. f.) Kurz, and Ormosia sp., including occasional trees of Sindora siamensis Teijsm. ex Miq., Streblus ilicifolius (S. Vidal) Corner, and Eurya turfosa Gagnep, and with an undergrowth formed primarily by Dracaena sp. and with occasional specimens of Cycas rumphii Miq. (Fig. 5 B) (plant identification — A. N. Kuznetsov, pers. comm.). Other species of snakes recorded in sympatry with the new species at the type locality included Lycodon davisonii (Blanford, 1878), L. capucinus (Boie, 1827), Ptyas korros (Schlegel, 1837), Ophiophagus hannah (Cantor, 1836), and Trimeresurus albolabris (Gray, 1842). A parasitic invasion of the Acanthocephala (Kölr.) worm was found in the subcutaneous cavity between the skin and the body muscles in the posterior third of the specimen length on its dorsal side (Figs 2 C, 4 A). The presence of this parasite may indicate that Colubroelaps adleri sp. nov. likely feeds on insects, as these animals are the intermediate hosts for acanthocephalan parasitic worms. All other aspects of the ecology of Colubroelaps adleri sp. nov., including information on diet, preferred microhabitats, reproduction, and predators, remain unknown.	en	Poyarkov, Nikolay A., Bragin, Andrey M., Nguyen, Tan Van (2024): A new endemic insular species of the genus Colubroelaps (Squamata, Serpentes, Colubroidea) from Khanh Hoa Province, Vietnam. Herpetozoa 37: 379-390, DOI: 10.3897/herpetozoa.37.e137809
