54 



PHYSALIDiE. 



3. CUVIERIUS. 



Cuvierius, Gray, I. c. pp. 114, 164; Synops. Whales 8f JDoIph. p. 3. 

 Rostrum of the skull broad, the outer sides curved, especially in 

 front. The second cervical vertebra with two short, thick lateral 

 processes. First rib single-headed. Sternum oblong-ovate, trans- 

 verse. Hands elongate ; fingers slender, second finger much longer 

 than the forearm-bone. Scapula with a broad acromion and a rudi- 

 mentary coracoid. 



1. Cnvierius Sibbaldii. B.M. 



Cuvierius Sibbaldii, Gray, I. c. p. 880 ; Synops. Whales 4* Dolph. p. 3. 



Cuvierius latirostris, Gray, I. c. p. 165. 



Physalus Sibbaldii, Gray, I. c. pp. 160 (fig. 36), 380. 



Balaenoptera Sibbaldii, Van Beneden, Ost^ogr. CH. t. 12 & t. 13. 



figs. 25-34. 

 Balsenoptora carolinse. Malm, Monog. Ilhist. t. 44. 

 Balsenoptera musculus, Sars, Vid. Selsk. Forhand. 1865, 1. 1, 2, & 3. 

 " Steypireyor," Beinhardt, Vidensk. Meddel. 1867 ; Anii. N. Hist. 



The Grey Fin Whale, Turner, Proc. Hoy. Soc. Edin. 1869, p. 34 (from 

 Londonderry). 



Inhab. North Sea. Mus. Hull. 



The great northern Rorqual of Knox probably belongs to this 

 species. Its skeleton is in the Edinburgh Museum. 



** Vei-tehrcB 68-60. First and second ribs double-headed (cf. p. 52) ; 

 second cervical vertebra with a broad lateral process, perforated at 

 the base. Lower jaw cotnjyressed, with distinct coronoid jJrocess. — 

 Sibbaldius, Gray, I. c. pp. 114, 169 ; Synops. Whales ^' Dolph. p. 3. 



4. RUDOLPHIUS. 



Rudolphius, Gray, I. c. p. 170 ; Synops. Whales 8f Dolph. p. 3. 

 Sibbaldius, Lilljeborg, Nova Acta Upsal. vi. 1867. 



Dorsal fin compressed, falcate, two-thirds the entire length from 

 the nose. Ribs 13 . 13 ; first rib short, dilated at the external end. 

 Sternum elongate, not narrow at posterior lobe. Fingers elongate ; 

 the second finger rather shorter than the forearm-bone. Scapula 

 very broad, with a large broad acromion process and a moderate 

 coracoid one. • 



1. Rudolphius laticeps. B.M. 



Sibbaldius laticeps. Gray, I. c. p. 170, figs. 37, 38. 

 Rudolphius laticeps, Gray, Synops. Whales Sf Dolph. p. 3. 

 Balsenoptera laticeps, Van Beneden, Ost^ogr. Cet. t. 10 & t. 11. figs. 

 11-35. 



Inhab. North Sea. 



Nose of skull more than twice the length of brain-cavity from the 

 nasal bones. 



