26 Guide to Whales, Porpotses, and Dolphins. 
the intestine of the Sperm-Whale, and found floating on the 
surface of the sea in masses of considerable size. It generally 
contains the horny beaks of squids and cuttles on which the 
Whale feeds, or fragments of the same. Ambergris is largely 
employed in perfumery, and commands a high price, commonly 
as much as 90s. per oz. The specimen exhibited in the upright 
case at the north-western corner of the room was purchased in 
1905, and weighs 41 ounces. 
Closely allied in structure to the true Cachalot, or 
Lesser | = ; ae 
Cachalot. Sperm- Whale, the Lesser Cachalot (Kogia breviceps) 
ditfers markedly in size (not exceeding ten feet in 
length), and also in lacking the disproportionately large size of the 
head. The union between the two halves of the lower jaw is 
shorter than in the true Cachalot, and there are also fewer teeth. 
It is very widely distributed, having been met with in various 
parts of the Indian and Southern Oceans, and in the North 
Pacific; but has not occurred in British waters. Whether the 
differences that have been noted in different specimens are to be 
attributed to variations depending upon sex, age, or locality, or 
whether there are several distinct species of the genus, is. still 
undetermined. Spermaceti is yielded by this Whale. The species 
is represented by the skeleton of an adult, from Trincomalee, 
Ceylon, presented by Mr. Hugh Neville in 1891. 
Baalcad The Beaked Whales (Ziphi ius, Mesoplodon, and Berardius), 
Unalos: together with the Bottle-nosed Whale (Hyperoddon), 
typify a family (Ziphiide) nearly related to the 
Physeteride, but with certain distinctive features of its own. In 
many of the extinct genera both jaws carried teeth; but in the 
living species the functional dentition is reduced to one or two 
pairs of large teeth in the lower jaw; these being larger in males 
than in females, and in Mesoplodon having a thin layer of enamel. 
There are, however, minute teeth (to the number of 17 or 19 pairs) 
in both jaws of Mesoplodon which never cut the jaw. In the 
extinct Paleoziphius there is little difference in the size of the 
individual teeth. The mandibular symphysis is long in the more 
ancient, but short in the recent genera. The skull is compressed 
into a high crest, with thick and massive pterygoid bones, and the 
beak often formed by a massive rod of ivory-like bone. The first 
two cervical vertebrae are fused, but the condition of the others 
