152 DELPHINIDJE. MONODON. 



The Beaked Hyperoodox. Hyperoodon rostratum. 



Hyperoodon, Cuv., Oss. Foss. v. p. 322. tab. 24. figs. 19, 21 (skull). — 



F. Cuv., CetacSs, pi. 9. figs. 1-3 (skull), 1836. 

 Hyperoodon bidens, Owen, Odont. p. 347. pi. 88. fig. 1 (end of the 



upper jaw of the young, showing the teeth). 



, ' . ,. ' „ , , , I Whitstable, Kent, 



o. A portion ol a very young skeleton. J 



BERARDIUS. 

 Berardius arnuxii. 

 Duvemoy, Ann. Sci. Nat. 1851, p. 51. tab. 



ZIPHIUS. 



Zipbius sowerbiensis. 



Gray, Zool. Erebus and Terror, p. 572.figs. 3, 4, cop. from Blainv. draw- 

 ing, p. 53. tab. (skull) ; Cat. Mamni. Brit. Mus. pt. i. Cetacea, pi. 3. 

 fig. 2 (skull). 



a. Plaster cast of the skull described by Sowerby. Presented by 

 Dr. Acland. 



DELPHINORHYNCHUS. 



Blainville's "Whale. Delphinorhynchus micropterus. 



Dumortier, Mem. Acad. Brux. xii. tah 2 (skeleton). — F. Cuv., Celace's, 

 p. 114. tab. 7 (skull). 



a. Plaster cast of skull. Presented by Professor Van der Hoeven. 



MONODON. 



The Narwhal. Monodon monoceros. 



Camper, Cet. tab. 29, 31 (skull). — Home, Lect. Comp. Anat. tab. 42. 

 fig. 1. — Cuv., Oss. Foss. v. tab. 22. fig. 7. — D' Alton, Vergl. Osteol. 

 no. ix. pi. 6 (skeleton), no. x. pi. 5 (skull). — Bonnat., Enc. M6th. pi. 

 (skull with two tusks), 1809. — Alters, Icon. Anat. Comp. pis. 2, 3 

 (skull with two tusks). — Bijdragen tot de Dierkunde, p. 21. pi. 

 fig. 1 (skull with one tusk), tig. 2 (with two tusks), 1848. — Owen, 

 Odontology, Art. in Encvcl. Brit. p. 444. fig. 62 (skulls of male and 

 female).— J 1 . Cuv., Cetaces, pi. 17. fig. 3 (skull), 1836. 



Cervical vertebra? 7 



Dorsal 11 



Lumbar and Caudal 33 



a. The tooth. North Sea. 



/». Skull : female : not in good state. North Sea. 



r. Skeleton. 



