52 PHYSALID.3E. 



3. ESCHRICHTIUS. 



Eschrichtius, Gray, I. c. pp. 113, 131 ; Si/nops. Whales fy Dulph. p. 2; 

 LiUjeborg, N. Acta Upsal. vi. p. 12, 1867. 



Bladebone with large coracoid process. Body of cervical vertebrae 

 separate, small, roundish- oblong. The neural canal very broad and 

 high. 



1. Eschrichtius robustus. B.M. 



Eschrichtius robustus, Gray, I. c. pp. 133 (fig.), 373 ; Synops. IMiales 

 $ Dolph. p. 2 ; IdUjeborg, N Acta Upsal. 1867, vi. p. 16, t. 1-8 ; 

 Cope, Proc. Acad. Nat. Set. Philad, 1865, p. 4. 



Inhab. North Sea ; coast of Devonshire, Sweden ; Atlantic. 



" The Eschrichtius robustus is admitted on the evidence of a ramus 

 of the under jaw in the Museum, Rutger's College, which is of pe- 

 culiar form, and closely resembles the figure given by LiUjeborg of 

 that portion of this rare species.'' — Cope, Proc. Acad. Nat. Sc. Philad. 

 1868, p. 194. 



Family 4. PHYSALID.®. Finner Whales. 



Physalina, Gray, I. c. pp. 114, 134. 



Physalinidfe, Gray, Synops. Whales §■ Dolph. p. 2. 



Dorsal fin high, erect, compressed, falcate, about three-fourths the 

 entire length from the nose. Pectoral fin moderate, with four short 

 fingers of four or six phalanges. Vertebras 55 or 64. Cervical ver- 

 tebras not anchylosed. Neural canal oblong, transverse. 



* Vertebra 60 or 64; first rib single-headed (cf. p. 54). 



1. BENEDENIA. 



Benedenia, Gray, I. c. pp. 114, 135 ; Syno])s. Whales §• Dolph. p. 2. 



Rostrum of skull narrow, attenuated, with straight slanting edges. 

 Second cervical vertebra with two short truncated lateral processes. 

 The first rib siugle-headed. 



1. Benedenia Knoxii. B.M. 



Benedenia Knoxii, Gray, I. c. pp. 138, figs. 24-26 : Synops. Whales 

 Sf Dolph, p. 2. 



Benedenia boops, Gray, Synops. Whales fy Dolph. tab. 32. f. 1, 2 (cer- 

 vical vertebras). 



Inhab. North Sea, coast of Wales. 



2. PHYSALUS. 



Physalus, Gray, I. c. pp. 114, 139; Synops. Whales $• Dolph. p. 2; 

 LiUjeborg, N. Acta Upsal, 1867, p. 72. 



Bostrum of the skull narrow, attenuated, with straight sloping 

 sides. Second cervical vertebra with a broad lateral process, with a 

 large perforation at the base. First rib single-headed. Sternum 



