Mesoplodon

Mesoplodon

 

a genus of mammals of the family Ziphiidae (beaked whales). The whales have a body length reaching 6 m; the coloration is dark, sometimes with white spots. The beak is set slightly apart from the low frontal nasal cushion. The rostrum of the skull is hard and solid, and the jaws are long and narrow. The single pair of teeth are flat and located in the front part of the lower jaw. The teeth usually do not break through the surface in females. There are 11 species; three are found in the Atlantic Ocean, three in the North Pacific, four in the southern hemisphere, and one in the tropical zone of the world’s oceans. The whales are rare and have not been studied much. They eat cephalopod mollusks and fish.

REFERENCE

Zhizn’ zhivotnykh, vol. 6. Moscow, 1971.
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The estimates of g(0) by Barlow (2015) were relative to a value of 1 at a Beaufort sea state of 0 for most species or species groups considered, with the exception of the Cuvier's beaked whale (Ziphius cavirostris) and Mesoplodon spp.
This Mesoplodon record is only the second confirmed specimen for Chilean waters after the one reported by Pastene et al.
Goodall como pertenecientes a un ejemplar de zifio (cetaceo odontoceto cuya presencia en aguas australes estaria representada por dos especies: ziphius cavirostfis o mesoplodon hecton) o bien ballena minke (Goodall com.
Cuvier Delfin de dientes rugosos in Lesson, 1828) 500 Tursiops truncatus (Montagu, Delfin pico de botella 1821) Phocoenidae 501 Phocoena spinipinnis Marsopa espinosa, chancho marino Burmeister, 1865 Physeteridae 502 Kogia breviceps (Blainvule, Cachalote de cabeza pequena 1838) 503 Kogia sima (Owen, 1866) Cachalote enano 504 Physeter catodon Linnaeus, Cachalote 1758 Iniidae 505 Inia geoffrensis (Blainville, Bufeo colorado 1817) Ziphiidae 506 Mesoplodon grayi Von Haast, Ballena de pico de Gray 1876 507 Mesoplodon peruvianus Reyes, Ballena de pico peruana Mead, y Van 507 Waerebeek, 1991 508 Ziphius cavirostris G.
Biological observations on Stejneger's beaked whale, Mesoplodon stejnegeri, from strandings on Adak Island, Alaska.
Two species of beaked whales were confirmed: Mesoplodon densirostris and Ziphius cavirostris.
Take reduction plans currently are in effect for the harbor porpoise, Phocoena phocoena, in the Mid Atlantic and Gulf of Maine regions; large whales (Eubalaena glacialis, Megaptera novaenangliae, and Balaenoptera physalis) in the Atlantic; and the pilot whale, Globicephala macrorhynchus; pygmy sperm whale, Kogia breviceps; sperm whale, Physeter macrocephalus; humpback whale, Megaptera novaeanliae; and beaked whales (Berardius bairdii, Mesoplodon spp.
Entre las otras especies afectadas se encuentra el Globicephala macrorhyn-chus, Globicephala melas, Grampus griseus, Mesoplodon peruvianus, Feresa attenuata y un ejemplar hibrido, a pesar que se tuvo acceso a un bajo numero de muestras.
Schmidly (1981) listed Matagorda Island and Nueces County as localities for an unspecified number of specimens of Mesoplodon europaeus housed in the TCWC.
Six of these species are in the genus Mesoplodon, including the newest species, which was described in 1991 (see photo overleaf).