396 ADDITIONS AMD COKRBCTIONS. 



1*. DelpMnus stenorhynclius. 



Skull like former, but larger ; the beak of the skull fully twice as 

 long as the length of the brain-cavity, and three times and three- 

 fourths as long as the width at the notch. Teeth five in an inch. 

 Delphinua microps, 6, Cataloffue of Seals and Whales, p. 240. 



Inhab. ? 



Skull very like D. microns, but beak much longer for size of head. 



Delphiuns Delphis (page 242), add : — 



»•, s. Skulls, large. Length 18|- inches, beak 11|^ ; width at notch 3|^ ; 

 length of lower jaw 6 inches. Teeth five in an inch length. 



Length of the beak of the skull three times its width at the notch, 

 and rather more than once and a half the length of the head. 



After Delphinus Delphis, (at page 245) add : — 

 3*. Delphinus major. 



SkuU larger than that of D. Delphis ; the beak nearly twice as long 

 as the head (or once and four-fifths the length), and more than three 

 times as long as wide at the notch. Teeth nearly five in an inch, 

 on the edge of the jaw, ^^. The grooves on the palate very wide, 

 rather shallow, scarcely extending behind the hinder half of the 

 beak. 



Inhab. ? 



a. SkuU. Length, entire, 21 inches, of beak 12^ inches ; width 

 at the notch 41 inches ; length of lower jaw 17-j inches. 



3**. Delphinus Moorei. 



Beak of skuU elongate, depressed, once and three-quarters the 

 length of the brain-cavity, and five times as long as wide at the 

 notch at the base. The intermaxillary bones rather convex. Teeth 

 smaU, slender, ^' ^ , five in an inch length of margin; the front 

 upper very small. The groove on the palate deep and wide, reaching 

 nearly to the tip, and wider and very shallow in front. The hinder 

 part of the palate in front of the inner nasal opening with a broad, 

 triangular, longitudinal groove having flat sides, and convex outer 

 sides. The bladebone rather produced behind the ridges, and trun- 

 cated at the lower part of the hinder edge. Coracoid process large, 

 subtrigonal, the front edge being truncated, the lower one oblique. 

 Length of skull 17| inches, of beak 11, of brain-case 6|, of lower 

 jaw 14J inches ; width over condyles 7, at notch 3 inches 7 Unes, at 

 middle of beak 1 inch ] 1 Unes. 



The upper surface of the beak, a narrow luinile over base of beak 

 to the eye, the back, dorsal fin, and upper surface of tail black ; a 

 narrow lunule over the face-streak, the sides of the head, and sides, 



