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Show 1884.] MR. J. B. SUTTON ON THE CRANIAL ARCADE. 571 fitting term for these so-called vomers. I venture to term them prepalatine, as indicating their anatomical relationship to the palatine bone and their affinity to the palatine portion of the superior maxilla of Mammals. Indeed, it seems pretty clear to m y mind that, without even entering into tbe question of development at all, so close is the anatomical harmony of the three pairs of segment-spremaxilla, prepalatine, and palatine-in Fish, Batrachia, Lacertilia, and Mammals, Fig. 2. Diagrammatic view of tbe Eustacbian cartilage and related nerves (modified from Fraser). E.C. Eustachian cartilage. M.C. Meckel's cartilage. S.C. Styloid cartilage. G.S.P. Great superficial petrosal nerve (vidian). C.X. Chord tympani nerve. III., V., VII., VIII. Cranial nerves. that there need be little hesitation in acquiescing in the view here set forth. This closes the case for the parasphenoid and the vomer. PBOC. ZOOL. Soc-1884, No. XXXIX. 39 |