Thyasira obsoleta

Thyasira obsoleta (Verrill & Bush, 1898) Fig. 14 For a great many years this species (Fig. 14) was confused with Axinulus croulinensis (Jeffreys, 1847) and was widely recorded as such from the eastern Atlantic from the Bay of Biscay to northern Norway (see Payne & Allen 1991 for details). It was not until Ockelmann formally recognised this species in the British fauna (Ockelmann pers. comm. in Bowden & Heppell 1968: 263) that the name became established in Europe. Lande (1975) recorded this species from Norway and credits Ockelmann with its identification.