Arctic Bivalve Species Photo Examples Photo Scale indicators: White grid of 4x4 mm squares on black slides, standard metric ruler and common Bic pen. Species NumberSpecies Name 9 Macoma brota / calcaria 10 Mya? Sp.? 11 Portlandia arctica 12 Portlandia lenticula 13 Clinocardium ciliatum 14 Bathyarca glacialis 15 Cyclopectin greenlandicus 16 Ennucula tenuis 17 Liocyma fluctuosa 18 Macoma sp. 19 Musculus decussata 20 Musculus niger 21 Nuculana minuta / pernula 22 Nuculana pernula 23 Indeterminate bivalve sp. B (brown) 26 Astarte montagui (lumped subspecies together) 28 Hiatella arctica 29 Dacrydium vitreum 31 Cyrtodaria kurriana 34 Pandora glacialis 37 Clinocardium cilliatum 38 Indeterminate nuculanids 39 ? 40 Lyonsia arenosa 42 Thracia devexia? 43 Indeterminate bivalve sp. A (juveniles?, lyocimas?) 9a 9b 9c 10a 10b 10c 11a 11b 12a 12b 13a 13b 14a 14b 15a 15b 16a 16b 17a 17b 18a 18b 19a 19b 19c 19d 20a 20b 21a 21b 21c 22a 22b 22c 23a 23b 26a 26b 28a 28b 28c 29a 29b 31a 31b 34a 34b 34c 34d 34e 37a 37b 37c 37d 38a 38b 39a 39b 39c 39d 40a 40b 40c 40d 42a 43a