Halocyprididae Dana 1853

Female (left). Carapace: A, lateral; B, ventral; C, both valves outside: posterior dorsal coners. D, frontal organ and first antenna. Second antenna: E, protopodite and exopodite; F, endopodite. G, labrum. Mandible: H, basale, exopodite and endopodite; I, coxal endite: toothed edge and distal tooth-list. J, maxilla. K, fifth limb. L, sixth limb. M, seventh limb. N, caudal furca. Male (right). Carapace: A, lateral; B, ventral; C, both valves outside: posterior dorsal coners. D, frontal organ and first antenna. First antenna: E, armature of b-, d- and e- setae; F, other specimen: armature of e-seta. Second antenna: G, protopodite and exopodite; H, I, left and right endopodites; J, left hook appendage. K, labrum. L, mandible without coxale. M, maxilla. N, fifth limb. O, sixth limb. P, seventh limb. Q, copulatory appendage. R, caudal furca. North Western Indian Ocean In: Drapun, I & S.L. Smith (2012) Halocyprid ostracods of the Arabian Sea region: Plates 42, 43. (https://www.researchgate.net/publication/280559278_Halocyprid_Ostracods_of_the_Arabian_Sea_Region)

A – female, B – male. North Western Indian Ocean In: Drapun, I & S.L. Smith (2012) Halocyprid ostracods of the Arabian Sea region: Pict. 21. (https://www.researchgate.net/publication/280559278_Halocyprid_Ostracods_of_the_Arabian_Sea_Region)

Female (left). Carapace: A, lateral; B, ventral; C, both valves outside. D, frontal organ and first antenna. Second antenna: E, protopodite and exopodite; F, endopodite. G, labrum. H, mandible without coxale. I, maxilla. J, fifth limb. K, sixth limb. L, seventh limb. M, caudal furca. Male (right). Carapace: A, lateral; B, ventral; C, both valves outside. D, frontal organ and first antenna. E, first antenna: armature of b-, d- and e- setae. Second antenna: F, protopodite and exopodite; G, H, left and right endopodites; I, left hook appendage. J, labrum. K, mandible without coxale. L, maxilla. M, fifth limb. N, sixth limb. O, seventh limb. P, copulatory appendage. Q, caudal furca. North Western Indian Ocean In: Drapun, I & S.L. Smith (2012) Halocyprid ostracods of the Arabian Sea region: Plates 48, 49. (https://www.researchgate.net/publication/280559278_Halocyprid_Ostracods_of_the_Arabian_Sea_Region)

A – female, B – male. North Western Indian Ocean In: Drapun, I & S.L. Smith (2012) Halocyprid ostracods of the Arabian Sea region: Pict. 24. (https://www.researchgate.net/publication/280559278_Halocyprid_Ostracods_of_the_Arabian_Sea_Region)

Female (left). Carapace: A, lateral; B, ventral; C, both valves outside. D, frontal organ and first antenna. Second antenna: E, protopodite and exopodite; F, endopodite. G, labrum. Mandible: H, basale, exopodite; I, endopodite. J, maxilla. K, fifth limb. L, sixth limb. M, seventh limb. N, caudal furca. Male (right). Carapace: A, lateral; B, ventral; C, both valves outside. D, frontal organ and first antenna. E, frontal organ ventrally. F, first antenna: armature of b-, d- and e- setae. Second antenna: G, protopodite and exopodite; H, I, left and right endopodites; J, left hook appendage. K, labrum. Mandible: L, Basale, exopodite and endopodite; M, coxal endite; N, coxal endite: toothed edge. O, maxilla. P, fifth limb. Q, sixth limb. R, seventh limb. S, copulatory appendage. T, caudal furca. North Western Indian Ocean In: Drapun, I & S.L. Smith (2012) Halocyprid ostracods of the Arabian Sea region: Plates 46, 47. (https://www.researchgate.net/publication/280559278_Halocyprid_Ostracods_of_the_Arabian_Sea_Region)

A – female, B – male. North Western Indian Ocean In: Drapun, I & S.L. Smith (2012) Halocyprid ostracods of the Arabian Sea region: Pict. 23. (https://www.researchgate.net/publication/280559278_Halocyprid_Ostracods_of_the_Arabian_Sea_Region)

Male 2.8-3.3mm An infrequent species at batypelagic depths (1500-3000m)in central and souther Atlantic

Taken on Polarstern XXIV in 2007

Female (left). Carapace: A, lateral; B, ventral. C, frontal organ and first antenna. Second antenna: D, protopodite and exopodite; E, endopodite. F, labrum. Mandible: G, basale, exopodite and endopodite; H, coxal endite: toothed edge and distal tooth-list. I, maxilla. J, fifth limb. K, sixth limb. L, seventh limb. Male (right). Carapace: A, lateral; B, ventral; C, both valves outside: posterior margins. D, frontal organ and first antenna. E, first antenna: armature of b-, d- and e- setae. Second antenna: F, protopodite, exopodite and endopodite; G, H, left and right endopodites; I, endopodite2 of other specimen: a- and b- setae. J, labrum. K, mandible. L, maxilla. M, fifth limb. N, sixth limb. O, seventh limb. P, copulatory appendage and caudal furca. North Western Indian Ocean In: Drapun, I & S.L. Smith (2012) Halocyprid ostracods of the Arabian Sea region: Plates 56, 57. (https://www.researchgate.net/publication/280559278_Halocyprid_Ostracods_of_the_Arabian_Sea_Region)

A – female, B – male. North Western Indian Ocean In: Drapun, I & S.L. Smith (2012) Halocyprid ostracods of the Arabian Sea region: Pict. 28. (https://www.researchgate.net/publication/280559278_Halocyprid_Ostracods_of_the_Arabian_Sea_Region)

Female (left). Carapace: A, lateral; B, ventral. C, frontal organ and first antenna. Second antenna: D, protopodite and exopodite; E, endopodite. F, labrum. Mandible: G, basale, exopodite and endopodite; H, coxal endite: toothed edge, distal and proximal tooth lists. I, maxilla. J, fifth limb. K, sixth limb. L, seventh limb. M, caudal furca. Male (right). Carapace: A, lateral; B, ventral; C, both valves outside: posterior margins. D, frontal organ and first antenna. E, first antenna: armature of b-, d- and e- setae. Second antenna: F, protopodite and exopodite; G, H, right and left endopodites. I, labrum. J, mandible without coxale. K, maxilla. L, fifth limb. M, sixth limb. N, seventh limb. O, copulatory appendage and caudal furca. North Western Indian Ocean In: Drapun, I & S.L. Smith (2012) Halocyprid ostracods of the Arabian Sea region: Plates 58, 59. (https://www.researchgate.net/publication/280559278_Halocyprid_Ostracods_of_the_Arabian_Sea_Region)

A – female;  B – male. North Western Indian Ocean In: Drapun, I & S.L. Smith (2012) Halocyprid ostracods of the Arabian Sea region: Pict. 29. (https://www.researchgate.net/publication/280559278_Halocyprid_Ostracods_of_the_Arabian_Sea_Region)

Female (left). Carapace: A, lateral; B, ventral; C, both valves outside: posterior part; D, posterior dorsal coners (higher magnification). E, frontal organ and first antenna. Second antenna: F, protopodite and exopodite; G, endopodite; H, other specimen: endopodite2+3. I, labrum. Mandible: J, basale, exopodite and endopodite; K, L, coxal endite and its toothed edge. M, maxilla. N, fifth limb. O, sixth limb. P, seventh limb. Q, caudal furca. Male (right). Carapace: A, lateral; B, ventral; C, both valves outside: posterior dorsal coners. D, frontal organ and first antenna. E, frontal organ: ventral. F, first antenna: armature of b-, d- and e- setae. Second antenna: G, protopodite and exopodite; H, I, left and right endopodites; J, left hook appendage. K, labrum. L, mandible. M, maxilla. N, fifth limb. O, sixth limb. P, seventh limb. Q, copulatory appendage. North Western Indian Ocean In: Drapun, I & S.L. Smith (2012) Halocyprid ostracods of the Arabian Sea region: Plates 60, 61. (https://www.researchgate.net/publication/280559278_Halocyprid_Ostracods_of_the_Arabian_Sea_Region)

A – female, B – male. North Western Indian Ocean In: Drapun, I & S.L. Smith (2012) Halocyprid ostracods of the Arabian Sea region: Pict. 30. (https://www.researchgate.net/publication/280559278_Halocyprid_Ostracods_of_the_Arabian_Sea_Region)

Female (left). Carapace: A, lateral; B, ventral; C, D, both valves outside: posterior dorsal coners (different specimens). E, frontal organ and first antenna. Second antenna: F, other specimen: capitulum of frontal organ. G, protopodite and exopodite; H, endopodite. I, labrum. J, mandible. K, maxilla. L, fifth limb. M, sixth limb. N, seventh limb. O, caudal furca. Male (right). Carapace: A, lateral; B, ventral; C, D, both valves outside: posterior dorsal coners (different specimens). E, frontal organ. F, first antenna. G, first antenna: e-seta. Second antenna: H, protopodite and exopodite; I, J, right endopodite; K, left hook appendage. L, labrum. M, mandible. N, maxilla. O, fifth limb. P, sixth limb. Q, seventh limb. R, copulatory appendage. S, caudal furca. North Western Indian Ocean In: Drapun, I & S.L. Smith (2012) Halocyprid ostracods of the Arabian Sea region: Plates 64, 65. (https://www.researchgate.net/publication/280559278_Halocyprid_Ostracods_of_the_Arabian_Sea_Region)

A – female, B – male. North Western Indian Ocean In: Drapun, I & S.L. Smith (2012) Halocyprid ostracods of the Arabian Sea region: Pict. 32. (https://www.researchgate.net/publication/280559278_Halocyprid_Ostracods_of_the_Arabian_Sea_Region)

Female (left). Carapace: A, lateral; B, ventral; C, both valves outside: posterior dorsal coners. D, frontal organ and first antenna. E, other specimen: capitulum of frontal organ. Second antenna: F, protopodite and exopodite; G, endopodite. H, labrum. I, mandible without coxale. J, maxilla. K, fifth limb. L, sixth limb. M, seventh limb. N, caudal furca. Male (right). Carapace: A, lateral; B, ventral; C, both valves outside: posterior dorsal coners. D, frontal organ and first antenna. E, other specimen: capitulum of frontal organ. F, first antenna: armature of b-, d- and e- setae. Second antenna: G, protopodite and exopodite; H, right endopodite; I, left hook appendage. J, labrum. Mandible: K, basale, exopodite; L, endopodite. M, maxilla. N, fifth limb. O, sixth limb. P, seventh limb. Q, copulatory appendage. R, caudal furca. North Western Indian Ocean In: Drapun, I & S.L. Smith (2012) Halocyprid ostracods of the Arabian Sea region: Plates 66, 67. (https://www.researchgate.net/publication/280559278_Halocyprid_Ostracods_of_the_Arabian_Sea_Region)

A – female, B – male. North Western Indian Ocean In: Drapun, I & S.L. Smith (2012) Halocyprid ostracods of the Arabian Sea region: Pict. 33. (https://www.researchgate.net/publication/280559278_Halocyprid_Ostracods_of_the_Arabian_Sea_Region)

Female (left). Carapace: A, lateral; B, ventral; C, both valves outside: posterior dorsal coners. D, frontal organ and first antenna. Second antenna: E, protopodite and exopodite; F, endopodite; G, H, endopodite2+3 (other specimens). I, labrum. J, mandible. K, maxilla. L, fifth limb. M, sixth limb. N, seventh limb. O, caudal furca. Male (right). Carapace: A, lateral; B, ventral; C, D, both valves outside: posterior dorsal coners (different specimens). E, frontal organ and first antenna. F, capitulum of frontal organ. G, first antenna: e-seta. Second antenna: H, protopodite and exopodite; I, left endopodite; J, right hook appendage. K, labrum. L, mandible without coxale. M, fifth limb. N, sixth limb. O, seventh limb. P, copulatory appendage. North Western Indian Ocean In: Drapun, I & S.L. Smith (2012) Halocyprid ostracods of the Arabian Sea region: Plates 68, 69. (https://www.researchgate.net/publication/280559278_Halocyprid_Ostracods_of_the_Arabian_Sea_Region)

A – female, B – male. North Western Indian Ocean In: Drapun, I & S.L. Smith (2012) Halocyprid ostracods of the Arabian Sea region: Pict. 34. (https://www.researchgate.net/publication/280559278_Halocyprid_Ostracods_of_the_Arabian_Sea_Region)

Female (left) (excluding E, lateral view of juvenile). Carapace: A, lateral; B, ventral; C, anterior; D, both valves outside: posterior margins. F, frontal organ and first antenna. Second antenna: G, protopodite and exopodite; H, I, endopodite. J, labrum. Mandible: K, basale, exopodite and endopodite; L, coxal endite: toothed edge and distal tooth-list. M, maxilla. N, fifth limb. O, sixth limb. P, seventh limb. Q, caudal furca. Male (right). Carapace: A, lateral; B, dorso-lateral; C, ventral; D,anterior; E, both valves outside: posterior margins. F, frontal organ and first antenna. G, first antenna: armature of b-, d- and e- setae. Second antenna: H, protopodite and exopodite; I, J, right and left endopodites; K, left hook appendage. L, labrum. M, mandible without coxale. N, sixth limb. O, copulatory appendage and caudal furca. North Western Indian Ocean In: Drapun, I & S.L. Smith (2012) Halocyprid ostracods of the Arabian Sea region: Plates 70, 71. (https://www.researchgate.net/publication/280559278_Halocyprid_Ostracods_of_the_Arabian_Sea_Region)

A – female, B – male. North Western Indian Ocean In: Drapun, I & S.L. Smith (2012) Halocyprid ostracods of the Arabian Sea region: Pict. 35. (https://www.researchgate.net/publication/280559278_Halocyprid_Ostracods_of_the_Arabian_Sea_Region)

Length 4.68-5.40mm Ranges from Equator to 60°N in N. Atlantic. Strong diel vertical migrator from deep mesopelagic depths 500-800m by day up into wind-mixed layer at night

Female (left). Carapace: A, lateral; B, ventral; C, both valves outside. D, frontal organ and first antenna. Second antenna: E, protopodite and exopodite; F, endopodite. G, labrum. H, mandible without coxale. I, maxilla. J, fifth limb. K, sixth limb. L, seventh limb. Male (right). Carapace: A, lateral; B, ventral; C, both valves outside. D, frontal organ and first antenna. E, first antenna: armature of b-, d- and e- setae. Second antenna: F, protopodite and exopodite; G, right endopodite; H, left hook appendage. I, labrum.  J, mandible without coxale. K, maxilla. L, fifth limb. M, sixth limb. N, seventh limb. O, copulatory appendage and caudal furca. North Western Indian Ocean In: Drapun, I & S.L. Smith (2012) Halocyprid ostracods of the Arabian Sea region: Plates 75, 76. (https://www.researchgate.net/publication/280559278_Halocyprid_Ostracods_of_the_Arabian_Sea_Region)