GENUS TURSIO. 



Table of iitcatiurc)iuiitb:~Ciu\th\ued. 



( i 



Labeled Clymenia alope. 



0. TURSIO Wagler. 



Tttrsio, Wagler, Nat. Syst. Aiiiphib., 1830, p. 34. 

 Lcucorhamphus, Lilljoborg, Upsala Uiiir. Arsskrift, 1H61, p. 5. 



Professor Flower {List, p. 497) is iucliued to believe tliat the finless 

 dolphins on which this geuus is erected may prove to belonjj to Pro- 

 (lelphiaus. Uutil the skeleton is obtained it will be impossible to de- 

 cide wliether this view is correct or otherwise. The skull in the National 

 Museum (No. SIGO, obtained by Mr. Dall), however, which is known to 

 be that of a finless dolphin, presents certain characters which make it 

 probable that this genus has claims to recognition equally with Liigcno- 

 rhijnchus, Prodelphimis., and other genera of the family. 



In the skulls in the College of Surgeons, Loudon, and the National 

 JMuseum, respectively, and in that figured in the OstcograpMe (PI. 

 XXXVIII, figs. 3 and 3rr) the pterygoids are apart at their base, and, ex- 

 cept in the first mentioned, throughout their entire length. In an adult 

 skull ill the Berlin Museum from Yeddo, Japan, collected by Dr. Eil- 

 gendorf, the pterygoids are long and are not in contact distally. . If, 

 when more specimen.'^ Iiave been accumulated, this character is found 



