256 DELPHINID^E. 



h. Skull. From Haslar Hospital. . 



c. SkuU. 



This species, in the slenderness and length of the beak and number 

 of teeth, forms the passage between this and the next section. 



In the Ipswich Museum there is a skull of a species allied to this, 

 if not the same. The beak is twice and a half as long as wide at the 

 notch; intermaxillaries convex, solid, with an elongate lanceolate 

 space in front ; triangle elongated, about one-third before the end of 

 the tooth-line, mgulose; lower jaw slender in front, slightly trun- 

 cated ; back of the head convex, rounded ; palate flat, rather concave 

 in the middle of the front part. Teeth |^. 



in. lin. 



Length, entire 16 



Length of lower jaw 13 3 



Length of beak 9 3 



Width at notch 3 6 



Width at orbits 7 9 



2. Tursio frsenatus. The Bridled Dolphin. 

 Blackish, paler on the sides, the belly white, end of tail black 

 beneath ; head black ; sides ashy, with a dark band fi-om the angle 

 of the mouth under the eye. 



Delphinus frenatus, JP. Cuv. Mamm. Lith. t. ; Cetac. 158. t. 1. from 

 ^ussumier's description and drawing; Pucheran, Rev. Sf Mag. Zool. 

 1856, 449; Gray, Cat. Cetac. B. 31. 1850, 115. 



Inhab. Cape de Yerd. 



Skull in the Paris Museum, from Cape de Verd, sent by Dus- 

 sumier. Length 18 inches, of beak 8-3, width at notch 3'.5, of 

 middle of beak 1-11. Teeth |^, rather larger than in D. duhius ; 

 palate smooth ; intennaxillaries large, expanded ; nasal convex be- 

 neath ; triangle rather extended in front of the teeth-line, rugose, 

 and rather more so than in D. duhius. There is a second skull marked 

 D. frenatns, No. 2 ; width at notch 3-7 ; teeth |-| or ||^ ; palate 

 flat ; nasal very convex, especially behind ; triangle extending rather 

 in front of the teeth-line, very rugose; jaws rather strongly reflexed 

 in front of the notch. 



b. nostrum of skull rather thick, conical, evenly tapering. 

 3. Tursio Metis. The Metis. 

 Skull globular ; back of blower tubercular; rostrum thick, conical, 

 regularly tapering, upper part convex, longer than the head and more 

 than twice as long as the width at the notch ; intermaxillaries con- 

 vex, more than half the width at the beak. Teeth |^, conical, acute, 

 curved. 



Delphinus Metis, Gray, Cat. Osteal. B. M. .36 ; 7,ool. Erebus 8f Terror, 

 .38. t. 18 (skull) ; Cat. Cetac. B. M. 1850, 113. 



Inhab. ? 



