New records of marine invertebrates from São Tomé and Príncipe (Eastern tropical Atlantic)

The following species are recorded from the coasts of São Tomé and Príncipe for the first time: the ciliate Zoothamnium niveum, the black coral Antipathella wollastoni, the zoanthid Isaurus tubercularis, and the shrimp Latreutes fucorum. The presence of the black coral Tanacetipathes spinescens and of the shrimp Cinetorhynchus rigens is confirmed. The presence of the crab Platypodiella picta at São Tome Island is confirmed and a possibly undescribed species of Platypodiella is recorded from Príncipe Island. Mistaken records of Stichopathes lutkeni are corrected: the species at São Tomé and Príncipe is Stichopathes occidentalis.info:eu-repo/semantics/publishedVersio

First record of the Sculptured Mitten Lobster Parribacus antarcticus (Crustacea, Decapoda, Scyllaridae) from the Cabo Verde Islands (eastern Atlantic)

The lobster genus Parribacuscontains six living and one fossil species (Holthuis 1991; Chan 2010; Nyborg & Garassino 2017). In the Atlantic Ocean, only one living species is known, Parribacus antarcticus(Lund, 1793); it has been recorded in the western Atlantic from Florida to Brazil and recently also from the mid-Atlantic island of Ascension (Brown et al.2016). It is nocturnal and is often found hiding in crevices during daytime (Holthuis 1991). We here note the presence of Parribacus antarcticusat the Cabo Verde Islands, the first record of the species from the eastern Atlantic.info:eu-repo/semantics/publishedVersio

Lecanogaster gorgoniphila, a new species of clingfish (Teleostei: Gobiesocidae) from São Tomé and Principe, eastern Atlantic Ocean

The clingfish Lecanogaster gorgoniphila new species, an unusual species associated with gorgonians, is described on the basis of 7 specimens and colour photographs from São Tomé Island, São Tomé and Principe, eastern Atlantic Ocean. The species is small, probably not exceeding 28 mm total length; it is characterized by having 4-5 dorsal-fin rays, 3-4 anal-fin rays, 21-23 pectoral-fin rays, and 11-14 principal caudal-fin rays; 12-14 rakers on third gill arch, very small, partially fused; papillae in centre of pelvic disk forming a round patch; pelvic disc region B with 5-6 rows of papillae; head relatively short, its length 2.4-3.4 in SL, and relatively narrow, its width 4.5-7.4 in SL; colouration of head and body variable in life, usually dorsally reddish white, ventrally rose, with eight bright red bars with scattered white spots. The new species is compared with other species of the eastern Atlantic genera Lecanogaster and Diplecogaster; a key to the species of the genus Lecanogaster Briggs, 1957 is presented.info:eu-repo/semantics/publishedVersio

Apletodon gabonensis, a new species of clingfish (Teleostei: Gobiesocidae) from Gabon, eastern Atlantic Ocean

The clingfish Apletodon gabonensis sp. nov. is described on the basis of seven specimens and colour photographs from Gabon, eastern Atlantic Ocean. The species is small, apparently not exceeding 20 mm total length; it is characterized by having 5 dorsal-fin rays, 4-5 anal-fin rays, 25-27 pectoral-fin rays, head width in males 2.6-4.7 in SL, anus in males with urogenital papilla present but not pronounced; snout long, broad, anteriorly truncate in male, narrower and rather pointed in female; preorbital length 1.8-3.8 in head length; conspicuous maxillary barbel absent in both sexes; disc with 10-12 rows of papillae in region A, 5 rows of papillae in region B, and 5-7 rows of papillae in region C. The new species is compared with the other species of the genus; a key to the males of the 6 known species of the eastern Atlantic genus Apletodon is presented.info:eu-repo/semantics/publishedVersio

Over 130 years of survival by a small, isolated population of Favia gravida corals at Ascension Island (South Atlantic)

info:eu-repo/semantics/publishedVersio

Ten invertebrates new for the marine fauna of Madeira.

The nemertine Drepanogigas albolineatus, the gastropods Coralliophila kaofitorum, Haminoea orteai, Discodoris rosi and Janolus n sp, the decapod Palaemonella atlantica, the phoronids Phoronis australis and Phoronopsis californica, the starfish Chaetaster longipes and the tunicate Distaplia corolla are recorded from Madeira archipelago for the first time

A note on nudibranchs (Mollusca Opisthobranchia) from Príncipe Island (eastern central Atlantic).

The nudibranchs Hypselodoris picta verdensis, Platydoris rolani, Glossodoris edmundsi, Flabellina arveleoi, and Flabellina llerae were recorded during an expedition to Príncipe island, the last three species being new records for the area

Ten new records of marine invertebrates from the Azores

The sea anemones Telmatactis cricoides (Duchassaign, 1850) and Actinia n. sp., the molluscs Tonna galea Linnaeus, 1758, Vitreolina philippi (de Rayneval & Ponzi, 1854), Melanella n. sp., Phidiana lynceus (de Rayneval & Ponzi, 1854) and Anomia patelliformis (Linnaeus, 1761), the nemertine Baseodiscus delineatus (DelleChiaje, 1825) and the echinoderms Leptosynapta inhaerens (O. F. Müller, 1776) and Stichopus regalis (Cuvier, 1817), are here recorded from the Azores for the first time. The presence of the two starfish species Chaetaster longipes (Retzius, 1805) and Luidia ciliaris (Philippi, 1837) in the Azores is confirmed and the spawning behaviour of the sea urchin Echinocyamus pusillus (O. F. Müller, 1776) is described

A new species of Malacoctenus from the Cape Verde Islands, eastern Atlantic (Pisces Teleostei, Labrisomidae)

Malacoctenus carrowi is described on the basis of three specimens from the Cape Verde Islands. The species is most similar to the only other eastern Atlantic species of the same genus, Malacoctenus africanus Cadenat, 1951. M. carrowi differs in colouration, a more elongated body, longer snout length, lower lateral line scale count and the absence of scales on the breast and is probably endemic to the Cape Verde Islands. A key to the Atlantic species of Malacoctenus is provided

Hydatina physis (Mollusca: Gastropoda: Opistobranchia) dos Açores.

The opisthobranch gastropod Hydatina physis (Linné, 1758) is recorded from the Azores for the first time. The distribution of the species is reviewed. Colour photos of live animals are presented and colour variation of the species is discussed