Correcting sponge names: nomenclatural update of lower taxa level Porifera Author Van Soest, Rob W. M. text Zootaxa 2024 2024-01-09 5398 1 1 122 http://dx.doi.org/10.11646/zootaxa.5398.1.1 journal article 10.11646/zootaxa.5398.1.1 1175-5334 10494167 E233F731-D5FA-4032-B3A4-CEFE5A809C49 Gellius raphidiophorus Brøndsted, 1933 ( Fig. 3K ) Gellius raphidiophorus Brøndsted, 1933: 18 , fig. 7. This combination, described by Brøndsted from Davis Strait between Greenland and Canada collected by the Godthaab Exped. Stat. 160, W of Egedesminde, 68.2833°N 58.2333°W , depth 410 m ( holotype ZMUC reg.nr. NHMD237734), is a junior primary homonym of Gellius rhaphidiophora Von Lendenfeld (1888: 190) (currently Haliclona (Gellius) rhaphidiophora ) described from Port Jackson, Australia , approximate coordinates 33.85°S 151.25°E , wet syntypes BMNH 1887.1.24.33 and AM G9141, fide Hooper & Wiedenmayer 1994: 121 ). The difference in spelling of the names, raphi - vs rhaphi - must be ignored according to ICZN art. 58.6 (aspiration or not of consonant), and the difference of the suffix - a vs - us amounts to the first being a misspelling that must be corrected (ICZN art. 34.2), so effectively the two are primary homonyms. The Australian species was redescribed by Hallmann (1914: 363 , fig.10) demonstrating that the two are obviously different species (shape and spicule sizes). The junior name is permanently invalid (ICZN art. 57.2) and must be replaced, for which I propose Haliclona (Gellius) godthaabae nom.nov . , named after the expedition vessel (there is already a combination Haliclona (Rhizoniera) brondstedi ).