ADDITIONS ANU CORRECTIONS. 40l 



Tursio Abusalam (page 2C1), ticld to synonyms: — 



Delphimis hamatns," Hemp. ^- U/ireiib.," Wie(jmann,inSchreh.S(mgfth. 



18. t. 369 (skuU) ; Schleyel, Ahhandl. i. 29. 

 D. Abusalam, War/ner, Schreh. Suppl. \ai. 324. 



After TURSIO, (at page 2G7) add :— 



4*. SOTALIA. 



Beak depressed, rather longer than the brain-cavity. Palate Hat. 

 Lower jaw rather broad behind ; symphyses short. Teeth slender, 

 conical. Pectoral fin oblicjuely trunciited. Forearm-bones free ; 

 hand shorter than the arm. Carjial bones five, small, surrounded 

 by cartilage. Phalanges of the index finger six, of the middle 

 finger five, and the foui'th finger one. "— - 



1. Sotalia Guianensis. 



Delphinus Guianensis, Van Henedc/i. 

 Tursio Guianensis, Catal. 257. 



Inhab. British Guiana. Mus. Stuttgart. 



The skuU differs greatly from that of D. viicrops, with which it 

 has been compared, in the length of the beak and the shortness of 

 the symjihj'sis. 



" Co dauphin prescntc dans la conformation do son squclette 

 divcrses particularitcs qui lui donncnt un certain interct. La co- 

 lonne vcrtebrale est tres-massive principalement a. -la region caudale ; 

 la nageoire pcctorale est fort-etendue en largcur. La teto a un 

 aspect a part, surtout par la conformation du maxUlairo inferieur," 



" Vertebrai 55 : thoracic 12, lumbar 14, caudal 22, cervical 7. The 

 first two cervical are united, the five others are free and have long 

 bodies, making a long neck, as in the Platanista:, which have a 

 similar-shaped pectoral. The caudal vertebrae form two distinct 

 series, the first thirteen have large bodies, and are much higher 

 than broad ; the first nine have the upper spinous apophyses well 

 developed ; and the first seven have transverse processes ; the twelve 

 chevron bones are very strong ; the last nine caudal vertebra) are 

 much depressed, and twice as broad as high, llibs 12 . 12 : the first 

 rather the broadest, the first four only have a double articular sur- 

 face, the first five are articulated directly to the sternum. The 

 .sternum is formed of three distinct bones, the front being the largest. 

 The pectoral fin is only rather longer than broad, and is not so long 

 as the arm-bones united ; the bladebone is much extended in form, 

 and has the acromion and coracoid weU developed. The two bones 

 of the forearm are rather longer than the humeiois. The radius is 

 very broad. Carpal bones five, in two rows, the three upper being 

 the largest ; metacarpals five. There is no phalange for the thumb, 

 only one for the little finger, six for the index, and four for the ring 

 finger. 



" The skull is rounded on aU sides, the falx is ossified, the face is 

 slender, the nasal canal open, the vomer is shown above between the 



2 D 



