Ordnung Saccoglossa

Schmekel, Luise; Portmann, Adolf

doi:10.1007/978-3-642-61817-8_9

Cited by 6 publications

(11 citation statements)

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“…Its presence in the Mediterranean has been confirmed mainly in waters along the Spanish (Cervera et al, 2004) and French coasts (e.g. Thibaut, 2001), Maltese Islands (Sammut & Perrone, 1998) and in waters off western Italy (Trinchese, 1893;Schmekel & Portmann, 1982), while we were not able to find any reliable records from the eastern Mediterranean. This is the first documented record of this species in the Gulf of Trieste and the Adriatic Sea.…”

Section: N Babalimentioning

confidence: 55%

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New Mediterranean Biodiversity Records (November, 2016)

et al. 2016

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In the present Collective Article information on 26 taxa belonging to 8 Phyla and extended from the western Mediterranean to the Levantine Sea are presented. The new records were found in 9 countries as follows: Spain: first record for the Mediterranean of the crab Cancer bellianus; Algeria: further records of the alien fish Lagocephalus sceleratus to the west Algerian waters; Italy: first report on the presence and establishment of the ctenophore Mnemiopsis leidyi in Lessina and Varano Lagoons (W. Adriatic) and of Penaeus aztecus in Corigliano Gulf (Italian Ionian). Moreover, the extension of the distribution range of the polychaete Branchiomma bairdi to W. Sicily as well as that of the crab Ocypode cursor and the bryozoan Catenicella paradoxa to E. Sicily are cited. Slovenia: the record of the rare saccoglossan gastropod Placida cremoniana from Piran (Gulf of Trieste) is the first for the Adriatic; Greece: the native sea slug Eubranchus farrani is the first from the Eastern Mediterranean; many sightings of the bamboo corals Isididae distributed along all the E. Ionian Sea and the establishment of P. aztecus in all Greek waters are also reported for first time; the westernmost extension of the alien urchin Diadema setosum in Cretan waters is cited and new sights of the alien species Goniobranchus annulatus and Pterois miles are shown. Turkey: the alien fish Champsodon capensis is reported for first time from the Aegean Sea and the native acari Agauopsis microrhyncha from the Levantine Sea; a new observation of the alien crab Atergatis roseus in Güllük Bay-Aegean is also mentioned; Cyprus: first records of the alien urchin D. setosum and Lobotes surinamensis in Cypriot waters; Lebanon: several sightings of Monachus monachus from the Lebanese waters indicate a potential better status of the species in the area, Egypt: first records of the alien crab Dorippe quadridens and the alien gastropods Nerita sanguinolenta and Conomurex persicus from the Mediterranean Egyptian waters; extension of the distribution range of Diodora funiculata and Diodora rueppellii and a second record of the alien Nerita sanguinolenta in the same area.

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Section: N Babalimentioning

confidence: 55%

“…Cerata are pointed and spindle-shaped. The diagnostic features fit the description of Schmekel & Portmann (1982). The specimen was photographed under an Olympus SZX16 stereomicroscope and is now housed in the opisthobranch collection of the Marine Biology Station in Piran under collection number MBP 101.…”

Section: N Babalimentioning

confidence: 78%

New Mediterranean Biodiversity Records (November, 2016)

et al. 2016

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“…The teeth are all smooth in most specimens, and always look like that when viewed dorsally or from the outer face (e.g., Alder & Hancock 1855;Bergh 1904;Eliot 1906 -for J. flagellatus), but some individuals possess a series of small denticles on the inside which is only visible when the tooth is viewed from the inner face (e.g., Eliot 1906;Pruvot-Fol 1954). What we cannot explain at present, as intraspecific variation, is the account by Schmekel & Portmann (1982) of a denticulate rachidian and 4 to 10 (though their illustration shows 16 and 13) strong denticles on all of the laterals from Mediterranean specimens.…”

Section: Lano/us Hyalinusmentioning

confidence: 67%

“…In fact the penis Fig. 11 Opposite lana/us hyalin us: (A) radula (Leigh specimen), selected lateral teeth (numbered), I from row 12, 6 from row 2 (dorsolateral view to emphasise the dentic1es), and 17-19 from row 3; (8) of J. hyalinus is very long and narrow (Schmekel 1970;Schmekel & Portmann 1982;present observations), just like that described by Eliot for J. flagellatus. We are not the first to propose the synonymy of J. flagellatus under J. hyalin us; Pruvot-Fol suggested it in 1954 (on p. 374) as did Gosliner in 1981 (on p. 30).…”

Section: Lano/us Hyalinusmentioning

confidence: 68%

“…Description. Janalus hyalinus is sufficiently well known, particularly through the thorough descriptions of Alder & Hancock (1855), and Eliot (1906) and Schmekel & Portmann (1982), to make a full redescription unnecessary. Such observations as are reported specifically here for the New Zealand specimens of J. hyalinus are presented more by way of comparisons to previous accounts and to Australian specimens, than a description per se.…”

Section: Lano/us Hyalinusmentioning

confidence: 99%

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A review of the New Zealand arminacean nudibranchs (Opisthobranchia: Arminacea)

Miller

Willan

1986

New Zealand Journal of Zoology

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Integrative taxonomy reveals a cryptic species of the nudibranch genusPolycera(Polyceridae) in European waters

et al. 2020

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This work aimed to test whether the colour variability featured by the European nudibranch Polycera quadrilineata is consistent with the concept of a single polychromatic species or may hide multiple lineages. Samples from across the geographic range of P. quadrilineata together with representatives from worldwide species with a focus on Atlantic diversity, were gathered and studied using an integrative taxonomic approach. Morpho-anatomical characters were investigated by light and scanning electron microscopy. Bayesian molecular phylogenetics using MrBayes, the Automatic Barcode Gap Discovery species delimitation method, and haplotype network analysis using the PopArt software were employed to help delimit species using the mitochondrial gene cytochrome c oxidase subunit I (COI). The results supported the existence of a second species, here described and named Polycera norvegica sp. nov., only known from Norway where it is sympatric with P. quadrilineata. The COI uncorrected p-genetic distance between the two species was estimated at 9.6–12.4%. Polycera norvegica sp. nov. differs by exhibiting a black dotted or patchy dotted pattern occasionally with more or less defined orange/brown patches, but never black continuous or dashed stripes as in P. quadrilineata. The two species share a common colouration with a whitish base and yellow/orange tubercles. Anatomically, P. norvegica sp. nov. has a weaker labial cuticle, a smaller radula with fewer rows, and only four marginal teeth, a reproductive system with a single lobed bursa copulatrix, shorter reproductive ducts, and a penis armed with two kinds of spines: needle-like and hook-shaped penile spines.

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Ordnung Saccoglossa

Cited by 6 publications

References 0 publications

New Mediterranean Biodiversity Records (November, 2016)

New Mediterranean Biodiversity Records (November, 2016)

A review of the New Zealand arminacean nudibranchs (Opisthobranchia: Arminacea)

Integrative taxonomy reveals a cryptic species of the nudibranch genusPolycera(Polyceridae) in European waters

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