MAMMALIA GET ACE A. 53 



Delphinus leucopleurus has been instituted as a new species 

 by Rasch. (Rev. Zool. p. 369.) 



" D. corpore supra coerulcsccutc nigro, iufra nivco, lateribus macula 

 longitudinali magna, obliqua, alba griscoque bruueo ornatis ; rostro breviori, 

 maxilla inferior! iougiori, dcutibus couspicuis supra infraque utriuque 28, 

 35 acutis, incurvis." Length 2.29-2.75 (probably metres). Twenty-three 

 individuals were taken in the bay of Christiania. 



