Astonishing diversity revealed: an annotated and illustrated inventory of Nudipleura (Gastropoda: Heterobranchia) from Mozambique Author Tibiriçá, Yara Author Pola, Marta Author Cervera, Juan Lucas text Zootaxa 2017 2017-12-01 4359 1 1 133 journal article 31260 10.11646/zootaxa.4359.1.1 a5cbd5ef-7f49-4a94-a2f4-61adcc8c8d01 1175-5326 1069168 8D06174D-B19F-4B5C-B9B0-DA74E6D43C75 Halgerda sp. 1 ( Figure 16 K ) Material examined. Two specimens. MB28-004661, ZD, 26 Mar. 2013 , 32m, 16mm . MB28-004721, ZT, 11 Aug. 2013 , 42m, 42mm . Habitats. Subtropical rocky reefs. Occurrences. Zavora. Geographic distribution. Western Indian Ocean. South Africa ( Coleman 2008 ) and Mozambique . Remarks. This species is similar to H. maricola ( Fahey & Gosliner 2001 ) from Western Australia ; it differs externally by the presence of much larger spots between the ridges and linned as opposed to spotted gills. Debelius and Kuiter (2007, pg. 235) illustrate a photograph of a Halgerda from western Australia which is externally more similar to this species than to the description of H. maricola , nevertheless without further examination of such a specimen is not possible to confirm its identity.