108 



lower jaw moderate or excessive in length : pectoral fins short, broad, 

 comparatively small, and weak ; dorsal fin or hump distinct but small ; 

 bones of the skull so raised at their edges as to form on the summit of 

 the head a large basin for the reception of spermaceti ; cervical vertebrae 

 anchylosed into one piece, with the exception of the atlas in the sperm 

 whale ; four anterior pairs of ribs attached to the sternum by unosaified 

 cartilage. Males larger than females. 



Genus KOGIA, Gray. 



Head moderate, short, broad ; forehead elevated ; mouth small, and 

 placed beneath the projecting snout " like that of a shark" 1 ; pectoral 

 fins weak ; dorsal fin small, depressed, rising and falling with the line 

 of the back, at an obtuse angle ; skull very broad, rounded behind ; 

 beak short, flat above, rapidly tapering to a point, and nearly equilateral 

 with the breadth at the supra-orbital ridge ; back part of the spermaceti 

 cavity longitudinally divided into two unequal parts by a sinuous ridge 

 of bone ; lower jaw wide at the condyles, contracting suddenly a little 

 beyond half-way, where it becomes narrow and rounded at the tip ; 

 mandibular symphysis about one-fourth of the entire length of ramus ; 

 cervical vertebras anchylosed into one piece. 



KOGUA BEEVICEPS, De Blainville. The Short-headed Whale. 

 Synonyms Pliyseter breviceps, De Blainville. 



Kogia Ireviceps, Gray, S. & ~W., p. 217, Suppl. p. 60. 

 Teeth J^, long, slender, acute, conical, arched inwardly. 

 This species was founded by De Blainville upon a single skull in the 

 Paris Museum, and which closely resembles in every important par- 

 ticular the skulls of the perfect specimens found in the Australian 

 Waters. 



Inhabits Cape of Good Hope. 



KOGLA. GBAYI, Macleay. Gray's Kogia. 

 Synonyms Euphysetes Grayi, Macleay (Wall), 1851. Gray, Suppl., 



p. 392. 



Physeter simus, Owen, Trans. Zool. Soc. 

 Kogia Grayi Gray, S. and W., p. 218. 

 Kogia Macleayi Gray, Suppl., p. 391. 

 EupJiysetes Macleayi Krefft, Proc. Zool. Soc., 1865. 

 Teeth j^, long, slender, arched inwardly. 



Prom pages 39 to 42 of the " History and description of the skeleton 

 of a new Sperm Whale, lately set up in the Australian Museum by 

 Willm. S. Wall, Curator, together with some account of a new genus 

 of Sperm Whales, called Euphysetes, Sydney, 1851," of which publi- 

 cation the author was the late eminent zoologist Mr. William S. 

 Macleay, I select a few paragraphs admirably descriptive of the 

 skeleton of this species. 



1 Krefft, Proc. Zool. Soc., Nov., 1865. 



