World Polychaeta Database (WPolyDb). This author is indeed the very famous Arctic explorer, diplomat, and humanitarian (1861-1930). For a while in his youth he was a curator at the Bergen Museum, Norway
english summary (p69-80) begins: "I had specimens of the following species under examination: — Myzostoma cirriferum. Leuckart; host. Antedon petasus, Dub & Kor. M. glabrum; host. A. rosacea (a few badly preserved specimens only). M. gigas, Lutken; host. A. eschrichtii, Miill. (a few specimens amongst which one complemental male). M. giganteum, n. sp.; host. A. celtica, Mar. M. graffi, n. sp.; host. A. celtica; and M. carpenteri; host. A. dentata. Say (A. sarsii, Dtib. S: Kor.)."