10 PHYSETEKID^. 



b. Imperfect skull, and portion of skeleton ; very young. 



(1378 6—60.12.2.3.) 



Taken witt the last. Purchased. 



c. Imperfect cranium, and considerahle portion of skeleton ; very 



old male. 



Orkneys. Purchased. 



Type of Hyperoodon latifrons. Gray, Zool. Ereh. & Terr. pi. iv. ; 

 and of Lagenocetus latifrons. Gray, P. Z. S. 1863, p. 200 ; Cat. 

 S. & W. p. 336, 1866 (cervical vertebraj figured). 



The maxillary crests are immensely developed. 



d. Skeleton ; female or young male ; imperfect. (1378 c.) 



2. Hyperoodon planifrons. 



(Southern Bottlenose Whale.) 



H. planifrons, Flower, P. Z. S. 1882, p. 892. 



a. Waterworn and mutilated cranium. (1814 a — 82. 3. 24. 1.) i 



Lewis Island, Dampier Archipelago, Australia. Purchased. 



Type of species, P. Z. S. 1882, p. 392. 



4. ZIPHIUS. 



Ziphius, Ouvier, Ossemens FossUes, 2nd ed. v. p. 352 (1823). 



1. ZipMus cavirostris. 



Ziphius cavirostris, Cuvia; loc. at. 



a. Imperfect skeleton. (1517 h — 78. 10. 25. 1.) 



Cape of Good Hope. Purchased. 



h. SkuH; adult. (1517 a— 69. 4. 5. 1.) 



Cape of Good Hope. Trustees of the 



South-African Museum, 1869 [P.]. 

 Type of Petrorhynchus capensis. Gray, P. Z. S. 1865, p. 628. 

 Figured under this name inCat. S. & W. (1866), pp. 344, 345. 



Described by Owen (British Crag Cetacea, Palasontogr. Soc. 

 1870), and figured in Van Beneden and Gervais, Osteographie des 

 Cetaoes, pi. xxi. fig. 10. Closely resembles the specimen described 

 in 1863 by Van Beneden as Ziphius indicus (Me'm. Acad. Eoy. 

 de Belgique, 8vo, xvi.). 



2. ZipMus chathameusis. 



Epiodon chathamieasis, PCector, Tr. N. Z. Inst. v. p. 164 (1873), 



The specific distinction between this and the last is not well 

 established. 



a. Articulated skeleton. 



New Zealand. Purchased through Dr. von Haast 



The teeth are small and pointed, thus diflFering from the" 

 following. This may be a sexual character. 



