70 KOGIA. 
Dimensions.—Up to eighty-five feet at least. 
Habitat.—Cosmopolitan. 
References.—Gray, B.M. Catal. Seals and Whales, p. 202, fi 
54 (side view of skull); Scott, Seals and Whales, p. 111. 
g: 
Genus IJ.—KOGIA, Gray (1866). 
Upper teeth absent or reduced to a rudimentary pair in front. 
Mandibular teeth nine to twelve in each ramus, long, slender, 
recurved, and pointed, with a coating of enamel. Upper surface 
of the cranium concave. Rostrum not longer than the cranial 
portion of the skull, broad at the base and rapidly tapering to the 
apex. Mandible with symphysis less than half the length of the 
ramus. All the cervical vertebre united. Head about one-sixth 
of the length of the body, obtusely pointed in front. Spiracle 
crescentic, to the left of the median line. Pectoral fins obtusely 
falcate. A triangular dorsal fin. 
Vertebra.—C. 7, D. 13 or 14, L. 9, Cd. 21; total 50 or 51. 
1. Koq@ia Breviceps, blainville, sp. (1838). 
Short-headed Sperm Whale. 
Black above, yellowish below. 
Dimensions.— Up to eleven feet. 
Habitat.— Australia ; Timor ; Cape of Good Hope. 
References.—-Gray, B.M. Catal. Seals and Whales, p. 217, fig. 
56 (skull and lower jaw) and p. 218; Scott, Seals and Whales, 
p. 208 ; Wail, Mem. No. 1, Austr. Mus. (1851), 
Subfamily I1.—Zipsuna. 
Mandibular teeth rudimentary and concealed in the gum, with 
the exception of one, very rarely two, pair which may be largely 
developed, especially in the males. A distinct lachrymal bone. 
Spiracle single, crescentic, and median. Pectoral fin small, ovate, 
all five digits moderately developed. A small obtusely falcate 
dorsal fin, situated considerably behind the middle of the back. 
Longitudinal grooves on the skin of the sides of the throat nearly 
united in front, but divergent behind. 
Genus III.—HYPEROODON, Lacépéde (1803). 
Mandible with a small, conical, pointed tooth at the apex of 
each ramus, concealed by the gum. Skull with the upper ends of 
the premaxille rising suddenly behind the nares to the vertex ; 
the right larger than the left. Anteorbital notch distinct. 
Mesethmoid but slightly ossified. All the cervical vertebree united. 
