actinosiphonate
Having vertical lamellae on the siphuncle, hypothesized to be either outgrowths of the…Having vertical lamellae on the siphuncle, hypothesized to be either outgrowths of the connecting ring, or the result of gerontic secretions.
Having vertical lamellae on the siphuncle, hypothesized to be either outgrowths of the…Having vertical lamellae on the siphuncle, hypothesized to be either outgrowths of the connecting ring, or the result of gerontic secretions.