6. MESOPLODON. 11 



Two teeth of old specimens ; apparently not a pair. 



(76. 2. 16. 11.) 



Chatham Island. Colonial Museum, Wellington [E.]. 



They have massive roots and much-worn crowns. One of them 

 is figured in Trans. N. Z. Inst. v. p. 170, figs, a-b, in the original 

 description, of the species. 



5. MESOPLODON. 



Mesoplodon, Oermii, Ann. So. Nat. 3' s^r. xiv. p. 16 (1850). 



1. Mesoplodon hidens. 



(Sowerby's Whale.) 



Physeter bidens, Sowerhy, Brit. Miscell.jp. 1 (1804). 

 Delphinus (Heterodon) sowerbiensis, Blainv. Notm. Diet. d'Hid. 

 Nat. ix. p. 177 (1817). 



, Cast of skull with mutilated occiput. 

 Coast of Elgin, Scotland. 



Sir Henry W. D. Acland, K.C.B. [P.]. 

 From the type-specimen, taken off the coast of Elgin in 1800, 

 now in the museum of the University of Oxford. 



, Cast of cranium ; young female. 



From the original, stranded at Ostend in 1835, and now in 

 the Brussels Museum ; described by Dumortier (Mem. Acad. Eoy. 

 Bruxelles, xii. 1839) under the name of DelpJiinorhynchvs micro- 

 pterus, and subsequently by Van Beneden (Mdm. Acad. Belg. 

 8vo, xvi. 1863). 



2. Mesoplodon australis. 



Mesoplodon australis, Flower, Trans. Zool. Soc. x. p. 419. 



. Articulated skeleton ; adult. (1677 a— 76. 2. 16. 2.) 



Lyall Bay, New Zealand. Wellington Museum [E.]. 



Type of species. Prepared from a specimen cast ashore in LyaU 



Bay, and described by Dr. Hector in Tr. N. Z. Inst. vii. p. 262 



(1875). The skeleton figured and described in Trans. Z. S. vol. x. 



3. Mesoplodon layardi. 



Ziphius layardii, Gray, P. Z. S. 1866, p. 358 ; Cat. S. ^ W. p. 353. 

 Dolichodon layardii, Oray, Supp. Cat. S. 8f W. p. 101 (1871). 



.. Skull. (69. 4. 5. 2.) 



Cape of Good Hope. Trustees of the 



South- African Museum, 1869 [P.]. 

 Figured by Owen in Brit. Crag Cetacea (Palasontogr. Soc. 

 1870). 



