. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Relationships of Stomiiforms • Fink and Weitzman 37 extrascapulor, epioccipilQ infraor-bitol 6 iphenoti lateral ethmoid nasal vomer exoccipita intercalar pterotic. supraoccipita rostral cartilage rostrodermethmoid supraethmoid Figure 3. Neurocranium of D. taenia (USNM 206614; mm SL), dorsal view. Infraorbital 6 = dermosphenotic of authors. ina orbitonasalis, thus lining the poste- rior wall of the nasal capsule and the an- terior wall of the orbit. Within the nasal recess, the lateral ethmoid ossification extend
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Relationships of Stomiiforms • Fink and Weitzman 37 extrascapulor, epioccipilQ infraor-bitol 6 iphenoti lateral ethmoid nasal vomer exoccipita intercalar pterotic. supraoccipita rostral cartilage rostrodermethmoid supraethmoid Figure 3. Neurocranium of D. taenia (USNM 206614; mm SL), dorsal view. Infraorbital 6 = dermosphenotic of authors. ina orbitonasalis, thus lining the poste- rior wall of the nasal capsule and the an- terior wall of the orbit. Within the nasal recess, the lateral ethmoid ossification extends to the lateral border of the fora- men olfactorium advehens and is contin- uous through the lateral wall of the fora- men with the ossification on the posterior wall of the lamina orbitonasalis. Antero- dorsally the lateral ethmoid extends to a point about one-third of the way around the concave dorsoposterior border of the olfactory recess. Posteriorly, the lateral ethmoid ossification extends about one- fourth the length of the dorsal wall of the orbital cavity. The vomer (Figs. 2-4, 13) is a median bone which lies ventral to the ethmoid cartilage. It is a compound bone com- posed of the ventral ethmoid and vomer proper (see ventral ethmoid, above). An- teriorly the vomer is relatively wide, with two broad lateral rami which anteriorly lie ventral to the anterior border of the ethmoid cartilage. Each ramus has one to three conical teeth ankylosed to it later- ally (Fig. 4). Anteromedially the vomer extends dorsally over the anterior border of the ethmoid cartilage to nearly reach the rostrodemiethmoid, to which it is tightly bound by thick connective tissue. Posteriorly, the vomer tapers to an elon- gate, sharply-pointed median ramus that extends to about the level of the anterior wall of the orbit and is enclosed dorsally by the parasphenoid. A thick median fi- brocartilage body, the rostral cartilage, lies between the anterodorsal surface of the ethmoid region and the p
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