Category of Organisms Marine Mammals
Kingdom Animalia
Phylum/Division Chordata
Class Mammalia
Order Cetacea
Family Kogiidae
Genus Kogia
Species sima
Binomial Name
Kogia sima
Author Owen, 1846
Common Name Dwarf sperm whale
Local Name  
Size Range
It grows up to 2.7 m in length and 250 kg in weight – making it smaller than the bigger dolphins

Environment/Habitat
The dwarf sperm whale prefers deep water, but is still more coastal than the pygmy sperm. Its favorite habitat appears to be just off the continental shelf.
Importance/Value
 
Resilience
 
Endemic No
Found in Marine Park No
Found in Malaysia Yes
Distribution
 
Morphology/Character
The dwarf sperm whale is the smallest of all whales. The species makes slow, deliberate movements with little splash or blow and will usually lie motionless when at the sea's surface. Consequently it can be observed only in very calm seas.
The dwarf sperm whale is physically very similar to, and has the same behavioural characteristics as, its cousin the pygmy sperm whale. Identification may be close to impossible at sea – however, the Dwarf is slightly smaller and has a considerably larger dorsal fin. The body is mainly bluish grey with a lighter underside with slightly yellow vein-like streaks possibly visible. There is a white false gill behind each eye. The flippers are very short and broad. The top of the snout overhangs the lower jaw, which is small.
Like the other Sperm Whales, the dwarf sperm whale has a spermaceti organ in its forehead. Like the pygmy sperm, the dwarf is able to expel a dark reddish substance when frightened or attacked – possibly to put off any predators.
Dwarf sperm whales are usually solitary creatures but have occasionally been seen in small groups

Biology
Teeth: Dwarfs have long, curved and sharp teeth (0–6 in the upper jaw, between 14 and 26 in the lower). These teeth have led to the species being described as the "rat porpoise" in the Lower Antilles.

Feeding: They feed mainly on squid and crab
Sexual maturity: as of 2.1 m in length
Mating season: Summer
Gestation period: 9 months
Size at birth: 1 m
Miscellaneaous
 
Status in IUCN Red List Data Deficient (DD)
Status in CITES Species Database II
Researcher(s)  
Reference(s)
RALF KIEFNER, WHALES & DOLPHINS CETACEAN WORLD GUIDE, PUBLISHED BY IKAN, Page: 126-128
Other Link(s)
Collection Record