|Crustacea Decapoda: Les Metapenaeopsis indo-ouest-pacifiques sans appareil stridulant (Penaeidae). Deuxième partie|
Crosnier, A. (1991). Crustacea Decapoda: Les Metapenaeopsis indo-ouest-pacifiques sans appareil stridulant (Penaeidae). Deuxième partie, in: Crosnier, A. (Ed.) Résultats des Campagnes MUSORSTOM 9. Mémoires du Muséum national d'Histoire naturelle. Série A, Zoologie, 152: pp. 155-297
In: Crosnier, A. (Ed.) (1991). Résultats des Campagnes MUSORSTOM 9. Mémoires du Muséum national d'Histoire naturelle. Série A, Zoologie, 152. Editions du Muséum: Paris. ISBN 2-85653-191-1. 520 pp., more
In: Mémoires du Muséum national d'Histoire naturelle. Série A, Zoologie. Editions du Muséum: Paris. ISSN 0078-9747, more
New species; Metapenaeopsis Bouvier, 1905 [WoRMS]; Marine
This paper is a continuation of the work published in 1987, in which a group of 10 species and one subspecies of Indo-West Pacific Metapenaeopsis without stridulating organs were treated. The study presented here is based on abundant material supplied by a large number of ORSTOM collections made in the Indo-West Pacific (Madagascar, Seychelles and New Caledonia) and by joint expeditions by ORSTOM and the Muséum national d'Histoire naturelle (MUSORSTOM 1-6, CORINDON, BIOCAL, BIOGEOCAL, CHALCAL 1 and 2 cruises) in the Philippines, Indonesia, New Caledonia and Chesterfield Islands and by the MD 32 cruise in the vicinity of La Réunion, supported by the TAAF (Terres Australes et Antarctiques Françaises). Additional material from the collections of the National Museum of Natural History, Washington, from several Australian Museums, as well as from the Museums of Amsterdam, Leiden, Copenhagen and Frankfürt was also examined. Problems have occurred because of insufficient original descriptions and these have resulted in many errors in the literature. All the type specimens have been re-examined (except for M. gallensis Pearson which is apparently lost), and also most of the specimens cited in the literature. Corrected identifications and distributions are given. Among the species previously described, 18 are recognized as valid, either as species or as subspecies : M. assimilis (de Man, 1920), M. ceylonica Starobogatov, 1972, M. commensalis Borradaile, 1898, M. dalei (Rathbun, 1902), M. distincta (de Man, 1907), M. evermanni (Rathbun, 1906), M. faouzii (Ramadan, 1938), M. gallensis (Pearson, 1905), M. hilarula (de Man, 1911), M. lamellata (de Haan, 1844), M. mannarensis de Bruin, 1965, M. mogiensis consobrina (Nobili, 1904), M. mogiensis mogiensis (Rathbun, 1902), M. quinquedenta (de Man, 1907), M. tarawensis Racek & Dall, 1965, M. vaillanti (Nobili, 1904), M. velutina (Dana, 1852), M. wellsi Racek, 1967.Six species are considered to be synonyms :M. borradailei (de Man, 1911) = M. commensalis Borradaile, 1898.M. bruini Starobogatov, 1972 = M. mogiensis consobrina (Nobili, 1904).M. caliper Liu & Zhong et al., 1988 = M. velutina (Dana, 1852).M. insona Racek & Dall, 1965 = M. velutina (Dana, 1852).M. perlarum (Nobili, 1905) = M. mogiensis consobrina (Nobili, 1904).M. raceki Starobogatov, 1972 = M. assimilis (de Man, 1920).Fifteen species and 2 subspecies are described as new : M. costata, M. difficilis, M. gaillardi, M. incisa, M. laubieri, M. marquesas, M. menoui, M. mogiensis complanata, M. mogiensis intermedia, M. parahilarula, M. persica, M. propinqua, M. proxima, M. quadrilobata, M. richeri, M. spatulata, M. spiridonovi.A total of 35 species and subspecies (not counting one form described under the name M. aff. distincta which is probably new) are treated. Thus 46 species and subspecies of Metapenaeopsis lacking stridulating organs are now known to occur in the Indo-West Pacific. Two identification keys are presented : one for males, another for females. They are mainly intended as a guide to the numerous figures included in the paper. Illustrations of the genitalia provide assistance in recognizing the characters used to separate the species. Ali the petasmata are depicted with lobes both closed and separated. Depth zones and geographic distributions of all the species are presented in tabular form. As with previous studies high species diversity of the Philippines-Indonesia fauna is evident. Deductions about the biogeography must be regarded with caution because they may reflect differences in sampling effort across the various areas and also because many small species have not been adequately collected. It is of particular interest to note that in the New Caledonian region, where there have been many collections made using a variety of methods, 17 species are known, whereas from the vast Philippines-Indonesia region only 19 have been recorded and only 9 from the whole of Australia. Finally some general considerations on the genus Metapenaeopsis are presented and it is suggested that the species currently assigned to it should perhaps be placed in 2 or 3 genera. An effort has been made to define the groups that might be deserving more formal recognition.