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WoRMS taxon details
basis of record
van der Land, J. (2001). Tetrapoda, <B><I>in</I></B>: Costello, M.J. <i>et al.</i> (Ed.) (2001). <i>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,</i> 50: pp. 375-376 (look up in IMIS) [details]
additional source
Jefferson, T.A.; Leatherwood, S.; Webber, M.A. (1993). Marine mammals of the world. <em>FAO Species identification guide.</em> FAO: Rome, Italy. ISBN 92-5-103292-0. VIII, 320 pp. (look up in IMIS) [details]
 Present Inaccurate Introduced: alien Containing type locality
Unreviewed
Description This family contains the larges animals ever to live; all balaenopteroids have adult body lengths of over 7 m, but some are much larger. The rorquals are streamlined animals (the humpback whale somewhat less than the others), with a series of long pleats extending from the snout tip to as far back as the navel on the ventral surface. Balaenopterids are fast and active lunge feeders; their morphology allows them to open their jaws very widely and distend their throats to take in huge mouthfuls of water during feeding. The baleen plates are of moderate length and fringe fineness. Density and fringe diameter vary among species, and along with plate number and width to length ratio, are diagnostic characters. Rorquals have dorsal fins (varying in size and shape) set beyond the midpoint of the back. The upper jaw has a relatively flat profile, a feature reflecting the structure of the skull. Within a given feature, differences among balaenopterids are often subtle variations on a theme, rather than class distinctions. Therefore, information on many features may be needed to distringuiish among them and reliance on a single character for identification is discouraged. <123> [details]
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