TUKSIOrS TURSIO. 



35 



versa; in others sborfc ami narrow, and the opposite. Tlie table of meas- 

 urements is as follows, the skulls being arranged in order of their abso- 

 lute lengtli : 



Mcasiiremoils of lnriifi/-0)ie sIhIIs of Tursiops iursio. 

 [Mcasurcnieuts in cuutimetcrs.] 



13.2 

 12.9 



12003 (X. C'.).'4t. 2 23. G 

 12007 (N. C). 44. 3 



r2275(y. C.).4J.8 



20707 (Point) I 

 Loo kout,>45. 2 

 M.I.). S 



11998 (N". C). 45. G 



12011 (K. C.).45. G 

 12009 (N. C.).4J. G 



12013 (N. C.).4G. 2 



1200G(N. C.).4G.3 124.7 



! i 



11991 (M'- C). 46.3 ,21.7 

 12002 (X. C.).4G.4 |24. 7 



I 

 11995 (N. C.).!4G.4 !24.7 



I 

 12001 (X. C.).'4G. C bo. 4 



24.1 

 24. G 



21.8 

 24.2 

 24.7 

 24. G 



10.8 

 10.8 



12.0 

 10.8 



10.3 



11.4 



12. 4 

 11.4 





i:: 



.^a [S.5 



-So 



7.0 



G. 8 



7.9 

 G.4 



C.3 



G. 9 

 7.9 

 7.4 



12. 1 7. 9 



11.2 I 7. G 



11993 (N. C.).4G.7 125.7 



i ! 



12001 (N. C.).14G.8 24.8 12 



U.8 



12.1 



11.7 



11.5 



11. S 

 11.1 



7.G 



7.5 



8.0 



12274 (X. C.).47.0 

 1227G (K. C). 147.1 



25.5 

 25.5 



12014 (N. C.).i47.3 125.8 



I 



I 



22080(II=it-)^-8:o-.o 

 teras). 5 



11. G 

 11.1 

 11.9 

 11.2 



3.8 

 4.2 

 4.7 

 4.0 

 3.9 



4.1 



4.2 

 4.2 



4.2 



4.0 



3.8 



4.1 



4.2 



7. 3. 9 



7. 3 ! 4. 2 



19.5 

 19.5 



20.0 

 20.5 



20.9 



....21.3 

 !. 1 120.8 

 2.9 20.7 

 2.9 21.5 



21. G 



21.2 

 20.3 



21.2 

 21.4 

 21.9 



3.1 21.7 



21.2 

 21.8 



.'0.9 ;;8. 4 



22.0 : .... 

 20.0 

 1.9 



10.0 ] .. 



1.9 

 21.8 



21.3 

 0.4 

 2.1 

 22.3 

 20.7 

 21.5 



£ o 

 ^ 9 



c 



39.7 

 39.0 



G.7 1 3.5 2.9 |2.3. 2 20.9 



8 '>^ 

 } 



8.5< 



■l 





23-23; 

 21-23i 



23? -23 ,; 



24-24 > 

 23-24) 



24-23? 



24-24' 



22-23^ 



i 



23-22( 

 ) 



2C-25I 



5 



24-24 ? 



25-24? 

 5 



IJcmarks. 



24-23 ^ 

 22-24? 

 23-23 ( 



Sutures distinct; tcctli 

 sbarp; frcsli. 



Sutures ojicii ; btach- 



worn. 

 Sutures distinct; Leacli- 



worn. 



Young; bcacb-wurn. 



Sutures distinct; teeth 

 sliarp; IVesIi. 



Sutures distinct; tectli 

 sliarp ; fresli. 



Sutures oprn; bcacli- 

 ■\vorn. 



Sutures distinct; un- 

 known ; beacli-worn. 



Do. 



Sutures open ; beacU- 

 worn. 



Do. 

 Do. 



Do. 



Do. 



Do. 



Do. 



Sutures distinct; t'jcth 

 8bar[); fresli. 



8.0 24-24( 



< 24-2l!i 



8. 3 S 25-25? Do. 



( 24 -24^ 



5 26— 2G>i Sutures open; beacli 



) ^(1 V orn. 



5 23—25?' Sutures open ; tresli. 



The skulls, it will be observed, vary but little in length • tliey rise by 

 gradations of G'""^ and less from 43.2 to 47.8*^^™. 



AVe shall first examine the table for indications of se.xnal differences 

 in the relative length of the beak as compareil with the total lengtli of 



