DH. J. MURIE ON THE WHITE-BEAKED BOTTLENOSE. 141 



Fig. 14. Macronema polygrammatum, M'Lach., <J , wings. 

 15. Macronema digramma, M'Lacli., <J , wings. 



Plate IV. 



Fig. 16. Hydropsyche colonica, M'Lacli., $ , appendices, from side ; 16 a, extre- 

 mity of penis, from side, more enlarged. 



17. Hydropsyche mauritiana, M'Lach., , appendices, from side; 17a, 

 extremity of penis, from above, more enlarged. 



18. Hydropsyche modiea, M'Lach., $ , appendices, from side ; 18 a, extre 



mity of penis, from side, more enlarged. 



19. Smicridea fasciatella, M'Lach., <? , neuration of wings ; 19 a, maxil- 



lary palpus ; 196, appendices, from side; 19 c, $ , extremity of abdo- 

 men, from side. 



20. Smicridea saucia, M'Lach., $ , neuration of wings ; 20 a, appendices, 



from above. 



21. Smicridea murina, M'Lach., J , neuration of wings ; 21 «, app. inf., 



much enlarged ; 215,$, extremity of abdomen, from side. 



22. Tinodes consueta, M'Lach., $ , neuration of wings ; 22 a, appendices, 



from above ; 22 b, the same, from side. 



23. Agapetus celatus, M'Lach., o* , neuration of wings ; 23 a, extremity of 



abdomen and appendices, from side. 



Notes on the White-beaked Bottlenose, Lagenorhyncfius albiros- 

 tris, Gray. By James Murie, M.D., F.L.S., &c., late Prosector 

 to the Zoological Society. 



(Plate V.) • 

 [Eead November 17, 1870.] 



The literature concerning this species of "Dolphin dates from 

 1846, when Mr. Brightwell * figured a female taken near Yar- 

 mouth under the name of Delphinns tursio, but which Dr. Gray f 

 immediately afterwards showed to be a species new to science, 

 and named it as now known. Another contributor was Eschricht J, 

 who described as Delpliinus lbsenii what appears either this 

 identical species, or but a variety of it, distinguished by a some- 

 what narrower beak, smaller-sized and more numerous teeth. 

 The venerable Nilsson adopted Eschricht' s determination in the 

 1 Scandinavian Fauna.' 



* Ann. & Mag. Nat. Hist. vol. xvii. p. 21, pi. ii. 



t Ibid. p. 35, pis. x., xi., and Zool. ' Erebus and Terror.' 



} Kongl. Danske Selskab. Kjobenh. 1847. 



