82 BALJilNID^. 



Balcena Mysticetus, Lesson, N. Rey. Anim. 202. 



The Right or Whalebone Whale, Dmlby, Phil. Tram, xxxiii. 256 ; 



Scoresby, Arctic Regiom, i. 448. t. 12. f. 1. 

 Balsena Cxrcenlandica, Li^m. Mus. Ad. Frid. i. 51. 

 Bakena vulgaris, Brisson, Rec/. Anim. 347. 

 Balfena vulgi, Aldrov. Pise. 688. 

 Balfena vulgo dicta, Rondel. Pise. 475. fig. 

 Balfena Roudeletii, Willvghh. Pise. 35. 

 Balpena Physalus, Pallas, Zoogr. i. 289 (not Sgn.). 

 De Balsenis hujusniodi Bipennibus, Sihbald, Pal. 27. 

 Balsena Mysticetus borealis, Knox, Cat. Anat. Prep. Wliale, 21. 

 Nordhval, Eschricht ^ Reinhardt, Kong. Danish. Vidensk. 1861, 46 



(anatomy). 

 Var. 1. ? Balfena glacialis occidentalis, Klein,Misc. Pise. n. 12 ; MUllei; 



Zool. Dan. Prod. 7; Bechst. Naturg. Deutschl. 1238; Virey,in Nouv. 



Diet. Sci. iii. 183 ; Desm. Mamm. 527. 

 Balajna Islandica, Brisson, Reg. Anim. 350. 

 Balsena Mysticetus, /3. Islandica, Ginelin, S. N. i. 223 ; Fischer, Sgn. 



Mamm. 522. 

 Baliiena Nord Caper, Bonnat. Cet. 3 ; Laeej}. Cet. 103. t. 2, 3 ; Gerard, 



Did. Sei. Nat. iii. 438. 

 Nord Kapper, Fgede, Groenl. 55. 

 Nordcaper, Anders. Isl. 219; Crantz, Grmil. 145. 

 Var. 2. ? Rock-nosed Whale, Gucrin, in Jameson's Neiv Edinh. Phil. 



Joxirn. 1845, 267. 



Inhab. North Sea. 



rt. Skull and lower jaw. North Sea. — The specimen figured in Cuv. 



Oss. V. tab. 25. fig. 9-11. 

 h, c. Two plates of whalebone. Greenland. Presented by Messrs. 



Smith and Simmonds. — The specimens figured in the ' Voyage of 



the Erebus and Terror,' p. 47. tab. 1. fig. 11. 

 d. One plate of whalebone. Greenland. 



In Balcena the atlas is united to the other cervical vertebrae. The 

 atlas has a nearly circular body, with the lateral process on the upper 

 part of the lateral edge ; the process has a straight upper edge and 

 a slanting lower one, gradually shelving down towards the lower 

 part of the side of the body of the vertebra, where it is confluent 

 with the upper part of the base of the large, thick, lower lateral 

 process of the second cervical vertebra. 



The upper lateral process of the second vertebra is large and well 

 developed, bent forwards at the end, coherent with the outer end of 

 the upper part of the lateral process of the atlas. 



The upper lateral processes of the third and succeeding vertebrae 

 are similar, but smaller, and united at the end to the upper pro- 

 cess of the preceding cervical vertebra. The lower lateral processes 

 are less developed, and unfortunately they are imperfect in the 

 specimen. 



The atlas and other cervical vertebrae of the Lagocetus lafifrons 

 are all united into a single mass. The body of the vertebrae is 

 nearly circular, with a verj^ large superior conical process formed of 

 the united neural arches ; and on the lower part of each side, on a 

 level with the lower edge, are two large, thick, conical processes, 



