Sentence Examples with the word cygnus

In comparison with all other vertebrates the number of neck-vertebrae of the birds is considerably increased; the lowest number, 14 to 15, is that of most Passeres and many other Coraciomorphae; the largest numbers, 20 or 21, are found in the ostrich, 23 in Cygnus olor and 25 in the black swan.

The serial number of these nerves depends chiefly upon the length of the neck, the extremes being represented by Cypselus (loth-14th cervical) and Cygnus (22nd-24th), the usual numbers of the common fowl being the 13th-17th nerves.

A gigantic swan, Cygnus falconeri, is known from the Zebug cavern in Malta.