Report on the Holothurioidea dreged by H. M. S. Challenger during the years 1873-1876 /
Théel, Hjalmar, 1848-
Report on the Holothurioidea dreged by H. M. S. Challenger during the years 1873-1876 / by Hjalmar Théel. - London : Her Majesty's Stationery Office, 1881-1886 - 2 v. ; 33 x 25 cm. - Report on the scientific results of the voyage of H.M.S. Challenger during the years 1872-76 ; Zoology ; 4.13, 14.39 .
Report on the Holothurioidea dreged by H. M. S. Challenger during the years 1873-1876 / by Hjalmar Théel. - London : Her Majesty's Stationery Office, 1881-1886 - 2 v. ; 33 x 25 cm. - Report on the scientific results of the voyage of H.M.S. Challenger during the years 1872-76 ; Zoology ; 4.13, 14.39 .