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 Spongia linteiformis Lamarck, 1814 ( Figs. 2 I-J) Spongia linteiformis Lamarck, 1814: 456–457 . Cacospongia linteiformis ; Topsent 1933: 8 , pl. I fig. 8; Fattorusso et al. 1992: 6923 (identified as ‘cf.’). Not: Spongia linteiformis Esper, 1797: 205 , pl. LVIII, figs. 1–2. Lamarck’s species name is a junior primary homonym of Spongia linteiformis Esper (1797: 205 , pl. LVIII) (here reproduced in Fig. 2J ), although Lamarck did mention Esper’s name with a question mark. Topsent’s (1933: 8 , pl. I fig. 8) redescription and illustration of the type specimen in MNHN, registration not currently known (reproduced here in Fig. 2I ) make it amply clear that the two are different species, and also their localities are from different oceans (Lamarck’s specimen was from Puerto Rico , Esper’s from the Indian Ocean). Although the identity of Esper’s sponge is uncertain (it is not even certain that it concerns a sponge), Lamarck’s name must be replaced (ICZN art. 59.1) and I propose Scalarispongia lamarcki nom.nov. , because from Topsent’s redescription I deduce that it is a member of genus Scalarispongia Cook & Bergquist, 2000 . Fattorusso et al. (1992) reported biochemical information (unprecedented sesterterpenes) from a specimen from the Bahamas of this species identified with some uncertainty. According to Topsent (1933: 9) , Lamarck’s collection contained two additional specimens labeled Spongia linteiformis , one being Echinochalina favosa ( Lamarck, 1814 ) , currently Echinochalina (Echinochalina) barba ( Lamarck, 1814 ) , and one (labeled ‘var.’) being Ircinia gigantea Von Lendenfeld, 1888 , currently Ircinia irregularis ( Poléjaeff, 1884 ) , a species from Australia .