TY - JOUR
T1 - Systematic revision one clade at a time
T2 - A new genus of onchidiid slugs from the Indo-West Pacific (Gastropoda: Euthyneura: Pulmonata)
AU - Dayrat, Benoît
AU - Goulding, Tricia C.
AU - Khalil, Munawar
AU - Lozouet, Pierre
AU - Tan, Shau Hwai
N1 - Funding Information:
We thank Fred Wells (associate editor), Isabel Hyman (reviewer), and an anonymous reviewer for their constructive comments which helped improve the manuscript. We also thank the editorial team of the Raffles Bulletin of Zoology for handling our manuscript. We are extremely grateful to all the people who helped us with field work in various ways, by hosting us at their institutions, helping with logistics, or accompanying us in the field. Our study would have been impossible without their generous help and efforts. Also, accessing field sites would have often been impossible without help from local fishermen and villagers. We thank Philippe Bouchet (Museum national d’Histoire naturelle, Paris) for allowing us to study some material collected during expeditions he led in Papua New Guinea (Madang and Kavieng) and Vanuatu. We would like to thank the collection managers of various institutions for sending us specimens on loan (from type or general collections): Janet Waterhouse, Ian Loch, Alison Miller, Mandy Reid (Australian Museum, Sydney); Ngô Xuân Quảng (Institute of Tropical Biology, Zoology Collection, Vietnam Academy of Science and Technology); Thomas von Rintelen and formerly Matthias Glaubrecht (Museum für Naturkunde, Berlin, Germany); Virginie Héros (Muséum national d’Histoire naturelle, Paris, France); Jon Ablett (Natural History Museum, London, United Kingdom); Yves Samyn and Thierry Backeljau (Royal Belgian Institute of Natural Sciences); John Slapcinsky and Gustav Paulay (University of Florida, Gainesville); Danny Eibye-Jacobsen, Ole Tendal, Antonia Vedelsby, and Kathe Jensen (Zoological Museum of the University of Copenhagen, Denmark); Bernhard Hausdorf (Zoologisches Museum, Hamburg, Germany). We are especially grateful to Barbara Buge and Nicolas Puillandre for handling all the DNA barcoding specimens at the Muséum national d’Histoire naturelle, Paris, France. A research permit was issued to Benoît Dayrat in Singapore (#NP/RP10-020). Collecting in Indonesia was overseen by Munawar Khalil. We thank the Ministry of Research, Technology and Higher Education, Republic of Indonesia (Ristek-Dikti) that issued a research permit to Benoît Dayrat (Ristek #134/SIP/FRP/ E5/Dit.KI/VI/2017). We also wish to thank the Universitas Malikussaleh, North Aceh, Sumatra, Indonesia, for being our homebase institution in Indonesia. The material from Vanuatu (Santo) and Papua New Guinea (Madang, Kavieng) was collected during the MNHN-PNI-IRD Our Planet Reviewed expeditions (PI: Philippe Bouchet), funded by the Stavros Niarchos Foundation, Total Foundation, Prince Albert II of Monaco Foundation, Fondation EDF, Entrepose Contracting, and Fonds Pacifique. The expeditions operated under permits delivered by, respectively, the Environment Unit of the Government of Vanuatu, and the Papua New Guinea Department of Environment and Conservation. This work was supported by the Eberly College of Science at the Pennsylvania State University and by a REVSYS (Revisionary Syntheses in Systematics) award to Benoît Dayrat from the US National Science Foundation (DEB 1419394).
Publisher Copyright:
© National University of Singapore.
PY - 2018/12/13
Y1 - 2018/12/13
N2 - In the context of a complete revision of the Onchidiidae, it is shown here that Onchidium vaigiense Quoy & Gaimard, 1825 and Onchidium marmoratum Lesson, 1831 belong to a clade that is separate from all other onchidiid genera and so a new genus is described: Marmaronchis Dayrat & Goulding, new genus. Marmaronchis slugs are characterised by a unique combination of anatomical traits: intestinal loops of type I, rectal gland present, accessory penial gland present. Marmaronchis vaigiensis and M. marmoratus are cryptic externally and internally but are delineated as distinct species with both mitochondrial (COI, 16S, 12S) and nuclear (ITS2, 28S, H3) DNA sequences. Onchidium ambiguum Semper, 1880 and O. steenstrupii Semper, 1882 are proposed as new junior synonyms of M. vaigiensis. Marmaronchis slugs primarily live in the rocky intertidal and, unlike many onchidiids from Southeast Asia, they are not found inside mangroves. Both Marmaronchis species are geographically sympatric and can even be found at the same stations, but Marmaronchis vaigiensis is widely distributed, from the Nicobar Islands (Bay of Bengal) all the way to Vanuatu and the Philippines, while M. marmoratus is only known from New Ireland and Madang (Papua New Guinea). Several new geographical records are provided: Bali and Sulawesi (Indonesia) and Vanuatu for M. vaigiensis; Madang (Papua New Guinea) for M. marmoratus. The diversity of Marmaronchis slugs is compared to other onchidiid genera.
AB - In the context of a complete revision of the Onchidiidae, it is shown here that Onchidium vaigiense Quoy & Gaimard, 1825 and Onchidium marmoratum Lesson, 1831 belong to a clade that is separate from all other onchidiid genera and so a new genus is described: Marmaronchis Dayrat & Goulding, new genus. Marmaronchis slugs are characterised by a unique combination of anatomical traits: intestinal loops of type I, rectal gland present, accessory penial gland present. Marmaronchis vaigiensis and M. marmoratus are cryptic externally and internally but are delineated as distinct species with both mitochondrial (COI, 16S, 12S) and nuclear (ITS2, 28S, H3) DNA sequences. Onchidium ambiguum Semper, 1880 and O. steenstrupii Semper, 1882 are proposed as new junior synonyms of M. vaigiensis. Marmaronchis slugs primarily live in the rocky intertidal and, unlike many onchidiids from Southeast Asia, they are not found inside mangroves. Both Marmaronchis species are geographically sympatric and can even be found at the same stations, but Marmaronchis vaigiensis is widely distributed, from the Nicobar Islands (Bay of Bengal) all the way to Vanuatu and the Philippines, while M. marmoratus is only known from New Ireland and Madang (Papua New Guinea). Several new geographical records are provided: Bali and Sulawesi (Indonesia) and Vanuatu for M. vaigiensis; Madang (Papua New Guinea) for M. marmoratus. The diversity of Marmaronchis slugs is compared to other onchidiid genera.
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UR - http://www.scopus.com/inward/citedby.url?scp=85059518876&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:85059518876
SN - 0217-2445
VL - 66
SP - 814
EP - 837
JO - Raffles Bulletin of Zoology
JF - Raffles Bulletin of Zoology
ER -