URMO name details
original description
Lahille, M. F. (1890). Recherches sur les Tuniciers des cotes de France. <em>Toulouse.</em> 330p. [details]
basis of record
Monniot, C. (2001). Ascidiacea & Sorberacea. <em>In: Costello, M.J. et al. (Ed.) (2001). 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.</em> 50: pp. 352-355. (look up in IMIS) [details]
additional source
Brunetti, R. (1987). Species of Clavelina in the Mediterranean Sea. <em>Ann. Inst. Oceanogr.</em> 63(2): 101-118. [details]
additional source
P�rez-Portela, R.; Duran, S.; Palac�n, C.; Turon, X. (2007). The genus Pycnoclavella (Ascidiacea) in the Atlanto-Mediterranean region: a combined molecular and morphological approach. <em>Invertebrate Systematics.</em> 21(2): 187-205., available online at https://doi.org/10.1071/is06015 [details] Available for editors 
additional source
van der Land, J. (ed). (2008). UNESCO-IOC Register of Marine Organisms (URMO). , available online at http://www.marinespecies.org/urmo/ [details]
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