taxonID	type	description	language	source
E4BE23BA6D80D1C8529B55F35142281E.taxon	materials_examined	Material examined. Persian Gulf: 1 specimen, Larak Island [(ZMSBUK. HD. 58), TL 971, SVL 857, HL 29.6, HW 12.6, GL 18.4, SNL 5.3, NEL 3.1, ND 52, GBD 100, NSL 7, NSR 47, BSR 57, NV 301], February 2014, collector: M. Ghavasi. Gulf of Oman: 8 specimens, Jask and Ras-Meydani, depth 18 - 50 m [(ZMSBUK. HD. 14), TL 1147, SVL 1008, HL 29.4, HW 14.5, GL 20.8, SNL 5.3, NEL 3.7, ND 55, GBD 95, NSL 8, NSR 48, BSR 55, NV 315; (ZMSBUK. HD. 21), TL 1180, SVL 1064, HL 31.2, HW 12.3, GL 22.4, SNL 5.4, NEL 3.4, ND 54, GBD 109, NSL 9, NSR 51, BSR 57, NV 303; (ZMSBUK. HD. 25), juvenile, TL 508, SVL 451, HL 17.9, HW 7.7, GL 12, SNL 2.9, NEL 1.3, ND 26, GBD 39, NSL 8, NSR 51, BSR 59, NV 344; (ZMSBUK. HD. 41), TL 1093, SVL 977, HL 30.5, ND 51, GBD 95, NSL 8, BSR 60; (ZMSBUK. HD. 45), TL 1057, SVL 943, HL 31.3, HW 18, GL 20.5, SNL 4.4, NEL 3.9, ND 48, GBD 96, NSL 7, NSR 47, BSR 60, NV 323; (ZMSBUK. HD. 50), TL 1172, SVL 1064, HL 36.7, HW 19.3, GL 23.7, SNL 5.5, NEL 4.6, ND 60, GBD 105, NSL 8, NSR 51, BSR 61, NV 316; (ZMSBUK. HD. 51), TL 932, SVL 823, HL 28.4, HW 13.7, GL 17.7, SNL 5.6, NEL 3.4, ND 45, GBD 98, NSL 8, NSR 50, BSR 61, NV 325; (ZMSBUK. HD. 52), TL 1230, SVL 1093, HL 35.2, HW 16.6, GL 23.5, SNL 4.8, NEL 4.4, ND 62, GBD 116, NSL 8, NSR 53, BSR 65, NV 340], October and November 2013, collector: M. Rezaie-Atagholipour; 3 specimens, Jask, mangrove swamps, depth 1 - 3 m [(ZMSBUK. HD. 27), TL 966, SVL 855, HL 28.3, HW 12.3, GL 19.7, SNL 4.9, NEL 3.7, ND 44, GBD 90, NSL 9, NSR 52, BSR 59, NV 327; (ZMSBUK. HD. 29), TL 1080, SVL 947, HL 30.5, HW 18.1, GL 17, SNL 5.6, NEL 4.1, ND 50, GBD 80, NSL 9, NSR 40, BSR 58, NV 348; (ZMSBUK. HD. 62), TL 1032, SVL 907, HL 28.5, HW 16, GL 20.1, SNL 5.2, NEL 4.5, ND 52, GBD 88, NSL 8, NSR 47, BSR 59, NV 327], December 2013, collector: M. Rezaie-Atagholipour; 2 specimens, Beris and Pasa-Bandar, depth 20 - 40 m [(ZMSBUK. HD. 49), TL 1044, SVL 928, HL 30.8, HW 12.7, GL 19.3, SNL 5, NEL 3.7, ND 50, GBD 105, NSL 7, NSR 51, BSR 64, NV 302; (ZMSBUK. HD. 53), TL 1095, SVL 955, HL 31.9, HW 14.7, GL 19.4, SNL 2.5, NEL 4.2, ND 50, GBD 95, NSL 8, NSR, BSR, NV, NB], August 2013, collector: M. Rezaie-Atagholipour.	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
E4BE23BA6D80D1C8529B55F35142281E.taxon	diagnosis	Diagnosis. Head of medium size; rostral beaked-shaped, elongate with decurved and pointed tip (Figures 2 a, 3 a); mental elongate, slender and dagger-shaped, hidden in the groove between chin shields (Figures 3 a, 6 c); body slightly elongate, not markedly slender anteriorly (Figure 6 e-f); 301 - 348 ventrals [340 - 354 (Volsoe 1939)], small and more or less indistinguishable from adjacent scales at mid-body (Figure 4 e); 40 - 55 scale rows on neck and 53 - 65 on body [47 - 52 and 56 - 60 (Volsoe 1939)].	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
E4BE23BA6D80D1C8529B55F35142281E.taxon	description	Size. Mean TL 1036 mm, maximum 1230 mm (n = 14) [n = 3, maximum TL 1350 mm (Volsoe 1939)]	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
E4BE23BA6D80D1C8529B55F35142281E.taxon	distribution	General distribution. Indo- West Pacific, from the Persian Gulf to Australia (David and Ineich 1999).	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
A690BCB69937056B9DBB75A1A619FBB2.taxon	materials_examined	Material examined. Gulf of Oman: 2 specimens, Beris and Pasa-Bandar, depth 20 - 40 m [(ZMSBUK. HD. 20), TL 737, SVL 656, HL 19.1, HW 12.6, GL 14.8, SNL 3, NEL 3, ND 35, GBD 67, NSL 8, NSR 29, BSR 47, NV 250; (ZMSBUK. HD. 43), TL 740, SVL 657, HL 18.9, HW 14.9, GL 13.3, SNL 3.9, NEL 2.8, ND 38, GBD 68, NSL 7, NSR 30, BSR 43, NV 265], August 2013, collector: M. Rezaie-Atagholipour.	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
A690BCB69937056B9DBB75A1A619FBB2.taxon	diagnosis	Diagnosis. Head large, short and depressed (Figures 8 - 9); tip of rostral curved and markedly tridentate (Figures 2 b, 3 b); usually 7 - 8 supralabials, none in contact with prefrontal (Figure 8); 250 - 265 large ventrals [245 - 291 (Volsoe 1939)], markedly distinguishable from adjacent scales (Figure 4 a), larger anteriorly than posteriorly; ventrals on anterior part of body wide and enlarged, half width of body, more or less rectangular in shape; 29 - 38 scale rows on neck, 39 - 47 on body [27 - 31 and 40 - 43 (Volsoe 1939)].	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
A690BCB69937056B9DBB75A1A619FBB2.taxon	description	Size. Maximum TL 740 mm (n = 2); [n = 8, mean TL 662 mm, maximum TL 780 mm (Volsoe 1939)].	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
A690BCB69937056B9DBB75A1A619FBB2.taxon	distribution	General distribution. Indian Ocean, from the Persian Gulf to Malay Archipelago (David and Ineich 1999).	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
229C0E778C07BD8536D08B9F3471CBD5.taxon	materials_examined	Material examined. Persian Gulf: 8 specimens, Bushehr Province [(ZMSBUK. HD. 1), TL 915, SVL 831, HL 32.9, HW 24.9, GL 22.9, SNL 7.9, NEL 4.8, ND 74, GBD 130, NSL 8, NSR 32, BSR 39, NV 158, NB 39; (ZMSBUK. HD. 2), TL 900, SVL 805, HL 34, HW 20.5, GL 23, SNL 7.3, NEL 5.4, ND 80, GBD 130, NSL 8, NSR 29, BSR 37, NV 187, NB 45; (ZMSBUK. HD. 5), TL 835, SVL 755, HL 31.5, HW 16.8, GL 26, SNL 7.1, NEL 4.6, ND 62, GBD 95, NSL 8, NSR 30, BSR 39, NV 165, NB 47; (ZMSBUK. HD. 11), TL 852, SVL 751, HL 30.3, HW 16.8, GL 22.2, SNL 5.8, NEL 4.5, ND 72, GBD 107, NSL 9, NSR 28, BSR 33, NV 147, NB 50; (ZMSBUK. HD. 15), TL 1008, SVL 910, HL 34.2, HW 19.2, GL 23.9, SNL 6.6, NEL 5, ND 80, GBD 125, NSL 8, NSR 31, BSR 39, NV 185, NB 55; (ZMSBUK. HD. 17), TL 869, SVL 781, HL 28.7, HW 15.8, GL 20.7, SNL 6, NEL 4.3, ND 61, GBD 75, NSL 7, NSR 24, BSR 36, NV 153, NB 48; (ZMSBUK. HD. 47), TL 797, SVL 716, HL 30.5, HW 16.9, GL 19.7, SNL 5.6, NEL 4.6, ND 50, GBD 62, NSL 8, NSR 30, BSR 37, NV 158, NB 45; (ZMSBUK. HD. 48), TL 716, SVL 642, HL 28.4, HW 14.8, GL 18.4, SNL 4.3, NEL 4.2, ND 55, GBD 85, NSL 8, NSR 33, BSR 43, NV 199, NB 46], September 2013, collector: M. Rezaie-Atagholipour; 1 specimen, Larak Island [(ZMSBUK. HD. 61), TL 783, SVL 700, HL 28.5, HW 15.3, GL 20.3, SNL 5, NEL 4.7, ND 62, GBD 95, NSL 8, NSR 32, BSR 42, NV 200, NB 51], February 2014, collector: M. Ghavasi. Gulf of Oman: 6 specimens, Beris and Pasa-Bandar, depth 20 - 40 m [(ZMSBUK. HD. 8), TL 855, SVL 772, HL 34.1, HW 21.6, GL 21.5, SNL 5.43, NEL 4.91, ND 70, GBD 93, NSL 7, NSR 28, BSR 34, NV 158; (ZMSBUK. HD. 18), TL 960, SVL 865, HL 34, HW 16.5, GL 25, SNL 5.8, NEL 5.7, ND 72, GBD 115, NSL 7, NSR 32, BSR 37, NV 157; (ZMSBUK. HD. 19), TL 825, SVL 753, HL 28.9, HW 18.1, GL 19.2, SNL 4.8, NEL 4.5, ND 58, GBD 100, NSL 8, NSR 33, BSR 40, NV 201, NB 47; (ZMSBUK. HD. 44), TL 1015, SVL 925, HL 40.9, HW 27.7, GL 25.6, SNL 6.6, NEL 5.3, ND 73, GBD 99, NSL 8, NSR 34, BSR 43, NV 197, NB 49; (ZMSBUK. HD. 57), TL 745, SVL 674, HL 29.7, HW 17.6, GL 20.3, SNL 3.9, NEL 3.6, ND 57, GBD 85, NSL 7, NSR 33, BSR 38, NV 185, NB 50; (ZMSBUK. HD. 60), TL 965, SVL 872, HL 32.7, HW 18.1, GL 23.4, SNL 5.6, NEL 5.5, ND 65, GBD 117, NSL 8, NSR 31, BSR 39, NV 174, NB 51], August 2013, collector: M. Rezaie-Atagholipour.	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
229C0E778C07BD8536D08B9F3471CBD5.taxon	diagnosis	Diagnosis. Head large (Figure 11); tip of rostral markedly tridentate (Figures 2 c, 3 c); parietals divided into small shields (Figures 10 b, 11 d-f); 7 - 9 supralabials, second contacts with prefrontal (Figure 10), third and fourth or only fourth touch eye; body short and stout (Figure 11 j-l); 147 - 201 medium size ventrals, distinguishable from the adjacent scales (Figure 4 b), larger anteriorly than posteriorly; ventrals on anterior part of body more or less hexagonal in shape, less than half width of body; 28 - 38 scale rows on neck and 32 - 43 on body [27 - 31 and 32 - 38 (Volsoe 1939)].	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
229C0E778C07BD8536D08B9F3471CBD5.taxon	description	Size. Mean TL 716 mm, maximum 1015 mm (n = 15); [n = 12, mean TL 606 mm, maximum TL 860 mm (Volsoe 1939)].	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
229C0E778C07BD8536D08B9F3471CBD5.taxon	distribution	General distribution. Indo- West Pacific, from the Persian Gulf to Australia (David and Ineich 1999).	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
EB918A27CF175259196D6B4F09AD8232.taxon	materials_examined	Material examined. Gulf of Oman: 1 specimen, Jask and Ras-Meydani, depth 18 - 50 m [(ZMSBUK. HD. 26), TL 401, SVL 352, HL 25, HW 10.1, GL 17.7, SNL 3.4, NEL 4.7, ND 34, GBD 38, NSL 10, NSR 39, BSR 46], October and November 2013, collector: M. Rezaie-Atagholipour; 2 specimens, Beris and Pasa-Bandar, depth 20 - 40 m [(ZMSBUK. HD. 12), TL 611, SVL 551, HL 34.5, HW 13, GL 22.2, SNL 4.7, NEL 6, ND 27, GBD 63, NSL 9, NV 333; (ZMSBUK. HD. 23), TL 690, SVL 618, HL 35.8, HW 17.9, GL 29.7, SNL 5, NEL 6.8, ND 52, GBD 72, NSL 9, NSR 56, BSR 58, NV 330], August 2013, collector: M. Rezaie-Atagholipour.	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
EB918A27CF175259196D6B4F09AD8232.taxon	diagnosis	Diagnosis. Head narrow; snout elongate (Figures 12 - 13); 9 - 10 supralabials, second touches prefrontal scale, four and fifth separated from eye by suboculars or contact eye (Figures 12 a, 13 a); body short, not stout (Figure 13 d); 330 - 333 small ventral scales [265 - 367 (Volsoe 1939)], more or less indistinguishable from adjacent scales at mid-body (Figure 4 f).	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
EB918A27CF175259196D6B4F09AD8232.taxon	description	Size. Mean TL 567 mm, maximum 690 mm (n = 3); [n = 5, mean TL 449 mm, maximum 565 mm (Volsoe 1939)].	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
EB918A27CF175259196D6B4F09AD8232.taxon	distribution	General distribution. Indo-Pacific, from east and south of Africa to the west coast of Americas (Heatwole 1999).	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
3EAE7B85D989F07CF5C31886BE9B85DD.taxon	materials_examined	Material examined. Gulf of Oman: 1 specimen, Jask, depth 1 - 3 m [(ZMSBUK. HD. 55), TL 1925, SVL 1775, HL 44.3, HW 20.6, GL 28, SNL 7.5, NEL 5.8, ND 67, GBD 90, NSL 7, NSR 30, BSR 38, NV 387, NB 61], December 2013, collector: M. Rezaie-Atagholipour.	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
3EAE7B85D989F07CF5C31886BE9B85DD.taxon	diagnosis	Diagnosis. Head of medium size (Figure 15); second supralabial touches prefrontal scale (Figure 14); body markedly elongate, not slender anteriorly (Figure 15 d); 387 ventrals [363 - 385 (Volsoe 1939)], slightly distinguishable from adjacent scales; [27 - 31 scale rows on neck, 34 - 38 on body (n = 4, Volsoe 1939; n = 1, present study)].	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
3EAE7B85D989F07CF5C31886BE9B85DD.taxon	description	Size. TL 1925 mm (n = 1); [n = 4, mean TL 1587 mm; maximum TL 1984 mm (Volsoe 1939)].	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
3EAE7B85D989F07CF5C31886BE9B85DD.taxon	distribution	General distribution. Indian Ocean, from the Persian Gulf to Malay Archipelago (David and Ineich 1999).	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
14085641CBCF6C62F7018E22FCF29ABA.taxon	materials_examined	Material examined. Persian Gulf: 3 specimens, Bushehr Province [(ZMSBUK. HD. 10), TL 813, SVL 722, HL 26, HW 16.7, GL 18.8, SNL 4.9, NEL 3.9, ND 53, GBD 80, NSL 7, NSR 35, BSR 42, NB 41; (ZMSBUK. HD. 13), TL 879, SVL 791, HL 28.1, HW 15, GL 12.5, SNL 4.2, NEL 4, ND 55, GBD 89, NSL 7, NSR 40, BSR 44, NV 302, NB 46; (ZMSBUK. HD. 16), TL 1200, SVL 1072, HL 36.6, HW 23.7, GL 27.6, SNL 6, NEL 5.2, ND 74, GBD 157, NSL 7, NSR 41, BSR 50, NV 306, NB 53], September 2013, collector: M. Rezaie-Atagholipour. Gulf of Oman: 3 specimens, Beris and Pasa-Bandar, depth 20 - 40 m [(ZMSBUK. HD. 3), TL 1015, SVL 908, HL 32.9, HW 30, GL 21.9, SNL 6.9, NEL 5.2, ND 68, GBD 110, NSL 8, NSR 37, BSR 42, NV 251, NB 51; (ZMSBUK. HD. 7), TL 985, SVL 800, HL 32.6, HW 19.5, GL 23, SNL 6.5, NEL 5.2, ND 65, GBD 97, NSL 7, NSR 38, BSR 48, NV 260, NB 51; (ZMSBUK. HD. 59), TL 1035, HL 33.9, HW 20.1, GL 24.1, SNL 5, NEL 5.3, ND 65, GBD 140, NSL 8, NSR 34, BSR 48, NV 286, NB 49], August 2013, collector: M. Rezaie-Atagholipour.	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
14085641CBCF6C62F7018E22FCF29ABA.taxon	diagnosis	Diagnosis. Head of medium size (Figure 17); 7 - 8 supralabials, second usually in contact with prefrontal, third and fourth, or third, fourth and fifth touch eye (Figure 16); body slightly stout, not markedly elongate (Figure 17 d-e); 251 - 306 ventrals, slightly distinguishable from adjacent scales (Figure 4 c); 34 - 43 scale rows on neck and 40 - 50 on body.	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
14085641CBCF6C62F7018E22FCF29ABA.taxon	description	Size. Mean TL 988 mm, maximum 1200 mm (n = 6); [n = 1, TL 885 mm (Volsoe 1939)].	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
14085641CBCF6C62F7018E22FCF29ABA.taxon	distribution	General distribution. Indo-West Pacific, from the Persian Gulf to Australia (David and Ineich 1999; Smith 1926).	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
583E22D3D0E5C01871EA28F73C3A3938.taxon	materials_examined	Material examined. Persian Gulf: 1 specimen, Bushehr Province [(ZMSBUK. HD. 9), TL 1185, SVL 1075, HL 23.9, HW 12.5, GL 13.4, SNL 4, NEL 3.6, ND 44, GBD 67, NSL 8, NSR 28, BSR 41, NV 359, NB 54], September 2013, collector: M. Rezaie-Atagholipour. Gulf of Oman: 3 specimens, Beris and Pasa-Bandar, depth 20 - 40 m [(ZMSBUK. HD. 4), TL 1275, SVL 1160, HL 25.3, HW 10.7, GL 13.3, SNL 5, NEL 4.4, ND 38, GBD 82, NSL 8, NSR 29, BSR 39, NV 332, NB 56; (ZMSBUK. HD. 6), TL 1447, SVL 1332, HL 27.3, HW 16.8, GL 17.9, SNL 4.6, NEL 3.2, ND 24, GBD 105, NSL 8, NSR 29, BSR 40, NV 339, NB 53; (ZMSBUK. HD. 56), TL 1065, SVL 463, HL 14.8, HW 10.5, GL 13.9, SNL 3.7, NEL 2.5, ND 38, GBD 67, NSL 8, NSR 25, BSR 39, NV 300, NB 51], August 2013, collector: M. Rezaie-Atagholipour.	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
583E22D3D0E5C01871EA28F73C3A3938.taxon	diagnosis	Diagnosis. Head slightly small (Figure 19); 7 - 8 supralabials, second in contact with prefrontal (Figure 18), third, fourth and fifth [or third and fourth, or fourth and fifth (Gasperetti 1988)] touch eye; body elongate but not markedly slender anteriorly (Figure 19 d); 300 - 359 ventrals [345 - 372 (Volsoe 1939)], slightly distinguishable from adjacent scales at mid-body; body scales on thickest part of the body with round or bluntly pointed tips, slightly or distinctly imbricate; 25 - 31 scale rows on neck, 39 - 41 on body [28 - 31 and 38 - 44 (Volsoe 1939)].	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
583E22D3D0E5C01871EA28F73C3A3938.taxon	description	Size. Mean TL 1243 mm, maximum 1447 mm (n = 4); [n = 7, mean TL 1195 mm, maximum TL 1495 mm (Volsoe 1939)].	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
583E22D3D0E5C01871EA28F73C3A3938.taxon	distribution	General distribution. Indo-West Pacific, from the Persian Gulf to Japan (David and Ineich 1999).	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
A4E274565DDD3F33C9CB33A828B5D9A1.taxon	materials_examined	Material examined. Gulf of Oman: 1 specimen, Jask and Ras-Meydani, depth 18 - 50 m [(ZMSBUK. HD. 40), TL 775, SVL 702, HL 19, HW 9.2, GL 11.7, SNL 3.4, NEL 2.4, ND 30, GBD 65, NSL 7, NSR 30, BSR 43, NB 45], October and November 2013, collector: M. Rezaie-Atagholipour.	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
A4E274565DDD3F33C9CB33A828B5D9A1.taxon	diagnosis	Diagnosis. Head slightly small (Figure 22); [8 supralabials, second in contact with prefrontal, third and fourth or third, fourth and fifth touch eye (Gasperetti 1988)] (Figure 21); body elongate but not markedly slender anteriorly (Figure 22); [290 - 404 ventrals (Volsoe 1939)], slightly distinguishable from adjacent scales (Figure 4 d); body scales in thickest part of body more or less quadrangular or hexagonal in shape and juxtaposed; [29 - 31 scale rows on neck, 41 - 46 on body (Volsoe 1939)].	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
A4E274565DDD3F33C9CB33A828B5D9A1.taxon	description	Size. TL 775 mm (n = 1); [n = 8, mean TL 781 mm, maximum TL 895 mm (Volsoe 1939)].	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
A4E274565DDD3F33C9CB33A828B5D9A1.taxon	distribution	General distribution. Indian Ocean, from the Persian Gulf to Malay Archipelago (Minton 1966; Rasmussen 1987).	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
0A9BB6DD49EC4EAFACE4D875D2FFAC1C.taxon	materials_examined	Material examined. Gulf of Oman: 11 specimens, Beris and Pasa-Bandar, depth 20 - 40 m [(ZMSBUK. HD. 31), TL 968, SVL 878, HL 13.1, HW 5.3, GL 7.7, SNL 3.1, NEL 1.1, ND 24, GBD 66, NSL 5, NSR 19, BSR 33, NV 237, NB 21; (ZMSBUK. HD. 32), TL 830, SVL 757, HL 116, HW 4.4, GL 7, SNL 2.7, NEL 1.2, ND 19, GBD 66, NSL 6, NSR 18, BSR 31, NV 269, NB 43; (ZMSBUK. HD. 33), TL 978, SVL 893, HL 13.1, HW 5.9, GL 7.8, SNL 3.4, NEL 1.9, ND 20, GBD 54, NSL 6, NSR 15, BSR 29, NV 245, NB 59; (ZMSBUK. HD. 34), TL 900, SVL 821, HL 12.3, HW 5.2, GL 7.9, SNL 2.8, NEL 1.4, ND 23, GBD 67, NSL 6, NSR 18, BSR 29, NV 253, NB 55; (ZMSBUK. HD. 35), TL 893, SVL 821, HL 12.1, HW 6.3, GL 9, SNL 3, NEL 1.8, ND 20, GBD 55, NSL 6, NSR 17, BSR 31, NV 223, NB 20; (ZMSBUK. HD. 36), TL 900, SVL 820, HL 12.2, HW 5.1, GL 9, SNL 3.6, NEL 1.7, ND 22, GBD 58, NSL 6, NSR 18, BSR 31, NV 231, NB 51; (ZMSBUK. HD. 37), TL 957, SVL 870, HL 12.5, HW 5.7, GL 8.5, SNL 3.5, NEL 1.4, ND 20, GBD 50, NSL 6, NSR 19, BSR 32, NV 264, NB 46; (ZMSBUK. HD. 38), TL 860, SVL 787, HL 12.3, HW 5.4, GL 7.7, SNL 3, NEL 1.5, ND 20, GBD 60, NSL 6, NSR 19, BSR 29, NV 229, NB 27; (ZMSBUK. HD. 39), TL 935, SVL 847, HL 12.8, HW 5.7, GL 8, SNL 3.4, NEL 2.2, ND 22, GBD 78, NSL 6, NSR 19, BSR 30, NV 229, NB 41; (ZMSBUK. HD. 46), TL 827, SVL 752, HL 12.7, HW 5.6, GL 9, SNL 3.4, NEL 1.5, ND 18, GBD 62, NSL 6, NSR 19, BSR 30, NV 242, NB 48; (ZMSBUK. HD. 54), TL 922, SVL 837, HL 13.2, HW 5.9, GL 8.9, SNL 3.2, NEL 1.4, ND 20, GBD 67, NSL 6, NSR 19, BSR 31, NV 246, NB 53], August 2013, collector: M. Rezaie-Atagholipour.	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
0A9BB6DD49EC4EAFACE4D875D2FFAC1C.taxon	diagnosis	Diagnosis. Head extremely small (Figure 24); 5 - 6 supralabials, second usually in contact with prefrontal, third and fourth touch eye (Figure 23 a); neck markedly slender; body elongate, markedly slender anteriorly (Figure 24 d); 15 - 20 scale rows on neck, 20 - 33 on body [18 - 19 and 31 (Volsoe 1939)]; 223 - 269 ventrals [232 - 269 (Volsoe 1939)].	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
0A9BB6DD49EC4EAFACE4D875D2FFAC1C.taxon	description	Size. Mean TL 906 mm, maximum 978 mm (n = 11); [n = 9, mean TL 865.5 mm, maximum TL 1030 mm (Volsoe 1939)].	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
0A9BB6DD49EC4EAFACE4D875D2FFAC1C.taxon	distribution	General distribution. Indo- West Pacific, from the Persian Gulf to Australia (David and Ineich 1999).	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
A007ECF170CE3CC8EDDCAD590641046D.taxon	materials_examined	Material examined. Gulf of Oman: 1 specimen, Jask and Ras-Meydani, depth 18 - 50 m [(ZMSBUK. HD.), TL 1124, SVL 992, HL 33.5, HW 12.3, GL 20.2, SNL 5.1, NEL 4.4, ND 51, GBD 101, NSL 6, NSR 24, BSR 41, NV 446], October and November 2013, collector: M. Rezaie-Atagholipour.	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
A007ECF170CE3CC8EDDCAD590641046D.taxon	diagnosis	Diagnosis. Head extremely small and pointed (Figure 26); third supralabial usually in contact with prefrontal (Figure 25 a); body elongate, markedly slender anteriorly; neck markedly slender (Figure 26 d); 24 scale rows on neck [23 - 25 (rare ly 21) (Leviton et al. 2003)] and 41 on body; 446 ventrals [404 - 468 (Leviton et al. 2003)].	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
A007ECF170CE3CC8EDDCAD590641046D.taxon	description	Size. TL 1124 mm (n = 1) [1450 mm in males and 1880 mm in females (Leviton et al. 2003)]	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
A007ECF170CE3CC8EDDCAD590641046D.taxon	distribution	General distribution. Indian Ocean, from the Gulf of Oman to Malay Archipelago.	en	Rezaie-Atagholipour, Mohsen, Ghezellou, Parviz, Hesni, Majid Askari, Dakhteh, Seyyed Mohammad Hashem, Ahmadian, Hooman, Vidal, Nicolas (2016): Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164, DOI: http://dx.doi.org/10.3897/zookeys.622.9939, URL: http://dx.doi.org/10.3897/zookeys.622.9939
