108 



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

 compai-atively 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 unossified 

 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'" ; 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 vertebrae anchylosed into one piece. 



Kogia beeviceps, De Blainville. The Short-headed "Whale. 

 Synonyms — Pliyseter hrcviceps, De Blainville. 



Kogia hrevioeps, 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 skuUs of the perfect specimens found in the Australian 

 Waters. 



Inhabits Cape of Good Hope. 



Kogia G-eati, Macleay. G-ray's Kogia. 

 Synonyms — HupJiysetes Crrayi, Macleay (Wall), 1851. Grav, Suppl., 

 p. 392. 

 Physeter simuSj Owen, Trans. Zool. Soc. 

 Kogia Orayi — Gray, S. and W., p. 218. 

 Kogia Macleayi — Gray, Suppl., p. 391. 

 Kuphysetes Macleayi — Krefft, Proc. Zool. See, 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, vSydney, 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 Erefffc, Proc. Zool. Soo., Nov., 1866. 



