Contributions to the morphological diversity and classification of the order Cavibelonia (Mollusca: Solenogastres)
von Salvini-Plawen, L. (2004). Contributions to the morphological diversity and classification of the order Cavibelonia (Mollusca: Solenogastres). J. Moll. Stud. 70: 73-93
In: Journal of Molluscan Studies. Oxford University Press: Reading. ISSN 0260-1230; e-ISSN 1464-3766, more
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| Keywords |
Classification
Classification > Taxonomy
Taxa > Species > New taxa > New species
Mollusca [WoRMS]; Solenogastres [WoRMS]
Marine/Coastal |
| Abstract |
The status of families within the order Cavibelonia is poorly understood. Here, description of new species and reexamination of type material yield new information on organizational diversity and systematic demarcations in the order. The families Drepanomeniidae and Rhipidoherpiidae are confirmed, and a new family Notomeniidae is proposed. Within Simrothiellidae, biodiversity at both the species and genus level is increased. Within Rhipidoherpiidae, as well as Proneomeniidae, the supraspecific taxa are elucidated. Of the eight species concerned, five are new: Drepanomenia tenuitecta n.sp. and D. pontisquamata n.sp. (Drepanomeniidae), Simrothiella digitoradulata n.sp., S. abysseuropaea n.sp.and Aploradoherpia insolita n.gen. n.sp. (Simrothiellidae). Observations on A. insolita confirm the independent origin of the (mesodermal) pericardioducts and (ectodermal) spawning ducts. A reexamination of the southern Norwegian Simrothiella margaritacea (Koren & Danielssen) revealed that specimens from the West European Basin belong to a separate species S. abysseuropaea n.sp. Two former Proneomenia species are revised and reclassified: Thieleherpia n.gen. is proposed for Proneomenia thulensis Thiele (Rhipidoherpiidae) and Dorymenia for Proneomenia quincarinata Ponder (Proneomeniidae). After re-investigation of Notomenia clavigera Thiele, this species is classified in the new family Notomeniidae. |
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