558 MAMMALIAN AND REPTILIAN VOMERINE BONES, 



6. — Wilson, J. T. — " Observations upon the Anatomy and Kelations of the 



Dumbbell-shaped Bone in Ornithorhynchus, &c." Proc. Linn. Soc. 



N.S.W., 1894. 

 7. —Broom, R. — " On the Homology of the Palatine Process of the Mamma- 

 lian Premaxillary." Proc. Linn. Soc. N.S.W., 1895. 

 8. — Symington, J. — "On the Homology of the Dumbbell-shaped Bone in 



the Ornithorhynchus." J. Anat. and Phys., 1896. 

 9. — Wilson, J. T. — " On the Skeleton of the Snout of the Mammary Foetus 



of Monotremes." Proc. Linn. Soc. N.S.W., 1901. 

 10. — Van Bemmelen, J. F. — "Der Schadelbau der Monotremen." Semon's 



Zoolog. Forschungsreisen, iii. Band, 4 Lieferung, 1901. 

 11. — Broom, R — '* On the Occurrence of an Apparently Distinct Prevomer 



in Gomphognathus." J. Anat. and Phys., Vol. xxxi., 1896. 

 12. — Seydel, 0. — " Ueber die Nasenhohle und das Jacobson'sche Organ der 



Land- und Sumpfschildkroten." Festschrift f. C. Gegenbaur, 1896. 

 13. — Howes, G. B., and Swinnerton, H. H. — " On the Development of the 



Skeleton of the Tuatara, Sphenodon inuictatus, &c. " Trans. Zool. 



Soc. Vol. xvi., 1891, p. 52. 

 14. — Parker, W. K. — "On the Structure and Development of the Skull in 



the Lacertilia. Pt. 1." Phil. Trans., 1879. 

 15. " On the Structure and Development of the Skull in 



the Common Snake (Tropidonotus natrix)." Phil. Trans., 1879. 



References to Plates, 



a.n., anterior nares ; J.o., Jacobson's organ; mx., maxillary ; n., nasal; 

 71./. c, nasal floor cartilage ; ??..§., nasal septum; pal., palatine; p.c, para- 

 septal cartilage ; ^.wa;., premaxillary ; pf., pterygoid; P. ro., prevomer ; qu., 

 quadrate; r.c, recurrent cartilage; s.mx., septomaxillary ; t.p., trans- 

 palatine; ^y. , tympanic ; Fo., vomer. 



EXPLANATION OF PLATES XXIV. -XXVI. 



Plate xxiv. 



Fig. 1. — Nasal capsule of embryo of Lacerta agilis, from the underside 



(after Seydel). Reconstructed from sections. Magnified. 

 Fig. 2. — Nasal capsule of 10 mm. foetus of Trichositrus vulpecula, from the 



underside. Reconstructed from sections. Magnified. 

 Fig. 3. — Transverse section of snout of young Gecko (Heteronota hinoei). 



Showing the prevomers as splints to the paraseptal cartilages. 



Magnified. 



