A-DDITIONS AND CORRECTIONS. 



395 



Steno Tucuxi, (at page 237) add : — 

 Fresliwater Dolphin, Steno Tucuxi, T]ieTucuxi,-Ba<es,^m«zo«s,i. 146. 



It rises horizontally, draws in an inspiration, and then dives 

 down head foremost, which distinguishes it from the Boufo. 



" I saw here, for the first time, the flesh-coloured Dolphin {D.pal- 

 lidus, Gervais) in the Lower Amazons, rolling away in pairs, both 

 being of the same colour." — Bates, op. cit. i. 303. 



" The pale flesh-coloured species (B. pallklus, Gervais) is also 

 abundant in the Upper Amazons." — Bates, op. cit. i. 146. 



Delphinus pseudodelphis (Wiegmann, Schrcb. Siiugeth. t. 358 ; 

 Wagner, Schreb. Supp. vii. 332) appears to be a Steno with small 

 teeth. The beak is figiired near once and a half the length of the 

 brain-case, and the teeth 42 . 45. 



DELPHINUS (page 239). 

 Add to generic characters : — 



The fin moderate-sized, falciform, pointed at the end; the hand of 

 the same length as the arm-bones ; the forearm-bones close together ; 

 the carpal bones forming a mosaic, separated by thin cartilage ; the 

 index finger of six phalanges. — Van Brambeke, Mem. Ac. Belg. xviii. 

 1. 1. f. 3. 



The first and second cervical vertebrae united by the bodies and 

 spinous processes of the neural arch, which is very much elongated 

 and keeled above. The lateral processes of the first medial, broad, 

 short, obliquely compressed. Hinder vertebrae thin. 



Fiff. 98. 



Skull of Delphinus. 



1. Delphinus microps (p. 240). Correct specific characters to :— 



Beak of skull nearly twice as long as (that is to say, once and 

 three-fourths the length of) the brain-cavity, and three times and 

 three-fourths as long as wide at the notch. Teeth six in an inch. 



This is the description of the skull, which is the type, figured in the 

 ' Voyage of the Erebus and Terror,' t. 25 ; a. of this Catalogue. 



Skull very like D. Alope, but head smaller and more globidar, and 

 beak much more slender. 



