Megalonychidae
Creators
Description
Family Megalonychidae
Genus Neocnus Arredondo, 1961 (Cuba and Hispaniola).
Acratocnus (?) Miller, 1929; Microcnus Matthew, 1931; Synocnus Paula Couto, 1967; Cubanocnus Kretzoi, 1968.
Type species. Micronocnus gliriformis Matthew, 1931.
Type locality. Casimba en las Llanadas, Sierra de Jatibonico, Cuba
Other species included: Synocnus comes Paula Couto, 1967; N. dousman MacPhee et al., 2000; N. toupiti MacPhee et al. 2000 (Hispaniola).
HoweVer, quite inadVertently, Cherbonnier (1972) erected the genus Neocnus, with the type species N. incubans Cherbonnier, 1972, to accommodate his new species of an incubatory Mediterranean cucumariid holothuroid with external brood pouches, from Tunisia. Since then, as far as we could ascertain from aVailable literature, this species was also recorded from Canary Islands by Pérez-Ruzafa (1984) and briefly described by AlVÀ (1991), its brooding and marsupium structure described by AlVÀ & Jangoux, M. (1992) and the species listed from Canary Islands by Hansson, (2001) and again by Hernández et al. (2013). The generic name Neocnus Cherbonnier (1972), was then used by Rowe & Vail (1982) and again by O‘Loughlin (1991), to accommodate an indetermined cucumariid dendrochirotid from southern Australia, as Neocnus sp., which subsequently, O’ Loughlin & O’Hara (1992), named and re-described as N. bimarsupiis. None of the aboVe authors recognized that the name Neocnus was already used by Arredondo (1961) to accommodate a group of “prehistoric” sloths as mentioned aboVe, a name which antedates Neocnus Cherbonnier, 1972 by some 11 years and hence constitutes a senior homonym, not aVailable for another taxon. This was brought to the attention of holothuroid taxonomists in a newsletter by some independent researchers but none of them proposed a new name for the junior homonym until one of us (VLWV) again encountered this anomaly and proposed to AST that the junior homonym Neocnus Cherbonnier, 1972, must be replaced. We therefore, diagnose the replacement name Incubocnus n.g. for this group of incubating cucumariid holothuroids, with Neocnus incubans Cherbonnier, 1972 as type species. The diagnosis of the new genus is the same for Neocnus, as amended by O’ Loughlin & O’Hara (1992), which is here reproduced with slight paraphrasing.
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Linked records
Additional details
Identifiers
Biodiversity
References
- Arredondo, O. (1961) Descripciones preliminares de dos nuevos generos y especies de edentados del Pleistoceno cubano. Boletin del Grupo de Exploraciones Cientificas, 1, 9 - 40.
- Miller, G. S. Jr. (1929) A second collection of mammals from caves near St. Michel, Haiti. Smithsonian Miscellaneous Collections, 81 (9), 1 - 30.
- Matthew, W. D. (1931) Genera and new species of ground sloths from the Pleistocene of Cuba. American Museum Novitates, 511, 1 - 5.
- Paula Couto, Cde. (1967) Pleistocene edentates of the West Indies. American Museum Novitates, 2304, 1 - 55.
- Kretzoi, M. (1968) New generic names for homonyms (Cubanocnus for Microcnus ...). Vertebrata Hungaricae, 10 (112), 163 - 165.
- MacPhee, R. D. E., White, J. L. & Woods, C. A. (2000) New megalonychid sloths (Phyllophaga, Xenarthra) from the Quaternary of Hispanlola. American Museum Novitates, 3303, 1 - 32. https: // doi. org / 10.1206 / 0003 - 0082 (2000) 3303 % 3 C 0001: NMSPXF % 3 E 2.0. CO; 2
- Cherbonnier, G. (1972) Neocnus incubans, nouveau genre et nouvelle espece d'holothurie dendrochirote incubatrice de Mediterranee. Comptes Rendus Academie Sciences, Paris, Serie D, 275, 225 - 227.
- Perez-Ruzafa, A. (1984) Estudio sistematico, ecologico y biogeografico de la clase Holothurioidea (Echinodermata) en las Islas Canarias. Licenciatura Thesis, Universiteit de La Laguna, Tenerife, 419 pp.
- Alva, V. (1991) On three species of Mediterranean echinoderms. Scientia marina, 55 (2), 211 - 219.
- Alva, V. & Jangoux, M. (1992) Brooding and marsupium structure in the cucumariid holothuroid Neocnus incubans (Echinodermata). Echinoderm Research, 1991, 121 - 123.
- Hansson, H. G. (2001) Echinodermata. In: Costello, M. J. (Ed.) European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50, pp. 336 - 351.
- Hernandez, J. C., Clemente, S., Tuya, F., Perez-Ruzafa, A., Sangil, C., Moro-Abad, L. & Bacallado-Aranega, J. J. (2013) Echinoderms of the Canary Islands, Spain. In: Echinoderm Research and Diversity in Latin America. Springer, Berlin Heidelberg, pp. 471 - 510. https: // doi. org / 10.1007 / 978 - 3 - 642 - 20051 - 9 _ 15
- Vail, F. W. E. & Rowe, L. L. (1982) The distributions of Tasmanian echinoderms in relation to southern Australian biogeographic provinces. Echinoderms, 219 - 225.
- O'Loughlin, P. M. (1991) Brooding and fission in shallow water echinoderms of southern Australia. In: Yanagisawa, T., Yasumasu, I., Oguro, C., Suzuki, N. & Motoawa, T. (Eds.), Biology of Echinodermata. Balkema, Rotterdam, 223 - 228.
- O'Loughlin, P. M. & O'Hara, T. D. (1992) New cucumariid holothurians (Echinodermata) from southern Australia, including two brooding and one fissiparous species. Memoirs of the Museum of Victoria, 53 (2), 227 - 266.