312 SHARFE AND DRESSER ON A NEW MECISTURA. [Apr. 18, 



EXPLANATION OF THE PLATES. 



Plate XXX. 



Fig. 1. Lingvla tnmidula, Reeve. 



2. smaragdina, A. Adams. 



3. dumortieri, Nyst, = L. jaspidea, A. Adams. 



4. lepidula, A. Adams. 



5. Discina Stella, Gould. ■ 



6. Crania japonica, Gould. 



7. Terebra&ulina caput-serpentis, Linnet 

 8. , var. japonica, Sow. 



9. , var. citmingii, Dav. 



10, 11, 12. Terebratula minor, Philippi, = T. davidsoni, Adams. 



13, Terebratella spitzbergensis, Dav. Fig. 13 c?, enlarged. 



14, 14 a. Ditto ditto, interior of ventral valve, enlarged. 



15, 16, 17. Terebratella marirn, A. Adams. Figs. 15a, 16a, enlarged; 



fig. 17, interior, enlarged. 

 18-22. Laqueus rubella, Sow. Fig. 20, a young specimen ; figs. 21 and 



22, L. suffusa, Dall, his original figures. 

 23-24. Magasella adamsi, Dav. Figs. 23 a, 24 a, enlarged. 



Plate XXXI. 



Figs. 1, 2. Megerlia sanguinca, Chemn. Figs. 2, 2 a, interior of dorsal valve, 

 enlarged. 



3. , var. M. reevei, Adams. 



4, 5. Terebratella coreanica, Adams and Reeve. 



6. T. ? 



7, 8. WalJhri,aia grai/i, Dav., and var. transversa, Gould. 

 9. raphaelis, Dall. 



10. • picta, Chemnitz. 



11. Magasella gouldi, Dall, MS. Fig. 11, a, b, c, enlarged. 



12. Rhynchonella pisittacea, Gmel., var. woodwardi, A. Adams. 

 , 13, 14. Im-ida, Gould. 



2. On a new Species of Long-tailed Titmouse from Southern 

 Europe. By R. B. Sharpe, F.L.S., Librarian to the 

 Society, &c, and H. E. Dresser, F.Z.S. &c. 



[Received April 4, 1871 ] 



In a paper published in 'The Ibis' for 1868 (p. 295), Sharpe 

 drew attention to the differences existing between the Long-tailed 

 Titmice of Great Britain and Scandinavia, and gave a synopsis of 

 the known species, six in number. At that time it was very uncer- 

 tain whether the bird found in Spain was identical with the British 

 species or not. We have lately received from our friend Major Irby 

 a series of specimens killed near Gibraltar, and we can now safely 

 affirm that the Spanish Long-tailed Titmouse constitutes a new and 

 entirely distinct species, which we propose to call 



ACREDULA IRBII, Sp. 110V. 



A. dorso pulchre cinereounicolori, parte superiore et uropygio paul- 

 lulum rosea tinctis : capite laterali et cello postico nigerrimis : 



