Lesser Rorqual


Also found in: Dictionary, Thesaurus.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Lesser Rorqual

 

(Balaenoptera acutorostrata), an aquatic mammal of the suborder Mysticeti. The body, which is up to 10 m long, is dark gray above and white below. There are up to 60 longitudinal furrows on the throat and chest region. The head is wedge-shaped. The mouth contains as many as 320 pairs of light-yellow whalebone, or baleen, plates. The lesser rorqual is found in all oceans. The northern variety has a white transverse belt on the pectoral fins; the southern variety does not have such a stripe. The gestation period is about ten months. The calf, measuring approximately 2.7 m long, is born in warm waters. The lesser rorqual feeds on swarming crustaceans, fish, and, rarely, cephalopods. It is caught commercially in the waters of Japan and Norway; since 1972 it has been hunted in the antarctic.

REFERENCES

Tomilin, A. G. Kitoobraznye. Moscow, 1957. (Zveri SSSR i prilezhashchikh stran, vol. 9.)
Zhizn’zhivotnykh, vol. 6. Moscow, 1971.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.