A short biography of Hubert Ludwig and a note on the publication dates of his monograph Die Seewalzen (1889 – 1892) Author Reich, Mike text Zootaxa 2015 4052 2 332 344 journal article 10.11646/zootaxa.4052.3.3 eb04673b-cfcd-4181-b76e-25a4d904bdb3 1175-5326 237822 1E4BF94C-D64D-4836-A5FA-5A8B17BD6167 Holothuria bataviae Ludwig, 1889 and Holothuria kurti Ludwig, 1891 Unfortunately, Ludwig introduced two nomina nova for Holothuria lamperti Sluiter, 1889 [non Holothuria lamperti Ludwig, 1886a ] (see Table 3 ). Holothuria bataviae was erected by Ludwig on page 174 (footnote) (= fascicles 5/6 of Ludwig 1889-1892 = Ludwig 1889), but is probably a forgotten name since it is missing for instance in the annotated catalogue of Holothuroidea by Smiley & Pawson (1991) or in the World Register of Marine Species . However, Holothuria kurti (introduced by Ludwig in a footnote on page 329 = fascicle 13/14 of Ludwig 1889-1892 = Ludwig 1891b) on the other hand gained acceptance to replace Holothuria lamperti Sluiter (e.g., Meissner 1895 ; Koehler & Vaney 1908 ; Sluiter 1914 ; Samyn et al. 2010 ). Lately Liao Yulin thought that H. kurti Ludwig, 1891 is probably a young H. (Theelothuria) ocellata ( Liao 1980 ) , other authors placed this species in the subgenus H. ( Holothuria ) and H. (Metriatyla) (cf. Rowe & Gates 1995 ).] Presently, H. kurti Ludwig, 1891 is considered to be a species of H. (Theelothuria) ( Paulay 2014b ).