Note 38 — ADAM SEDGWICK, M.A., (continued 4)
Reading edition
According to Müller (Myxinoiden, 1845) there is in Myxine an abdominal pore with two short canals leading into it, and Vogt and Pappenheim (An. Sci. Nat. Part IV. Vol. XI.) state that in Petromyzon there are two such pores, each connected with a short canal.