[Illustration: FIG. 9. Septomaxillary drawn from cleared and stained specimen of _Smilisca baudini_, KU 55614: _a_) dorsal; _b_) ventral; _c_) lateral. In each example, the anterior end lies to the left. Abbreviations: _dor. r. spmax._, dorsal ramus of septomaxillary; _lat. r. spmax._, lateral ramus of septomaxillary; _med. r. spmax._, medial ramus of septomaxillary; _vent. r. spmax._, ventral ramus of septomaxillary.] _Anterior and posterior maxillary processes._--The anterior end of the anterior maxillary process (_ant. max. proc._) lies within the maxillary at the level of the posterior terminus of the planum terminale. The anterior maxillary process diverges medially from the maxillary (Fig. 13) and expands dorsally along the medial face of the pars facialis to meet the planum antorbitale just anterior to the transition zone between the latter and the solum nasi. Posterior to the transition zone, the planum antorbitale disappears and the posterior maxillary process is restricted ventrally along the pars facialis of the maxillary. Posteriorly the cartilage is associated with the pterygoid, where it is known as the pterygoid process (_pter. proc._, Fig. 14). _Planum antorbitale._--The anterior terminus of the planum antorbitale (_pla. ant._) lies medial to the ventrolateral part of the nasal and lateral to the internal nares (Fig. 12). It abruptly expands dorsally along the medial face of the nasal to join the tectum nasi dorsolaterally; somewhat posteriorly the planum antorbitale joins the anterior maxillary process ventrally at the posterior margin of the internal nares. [Illustration: FIGS. 10-11. Transverse sections through posterior part of olfactory capsule: 10) region of planum terminale; 11) anterior region of olfactory eminence. Abbreviations: _cav. p._, cavum principale; _max._, maxillary; _nas._, nasal; _nlc. dt._, nasolacrimal duct; _olf. em._, olfactory eminence; _p. fac._, pars facialis; _p. pal._, pars palatina; _pla. ter._, planum terminale; _pvom._, prevomer; _rec. lat._, recessus lateralis; _sept. nas._, septum nasi; _sol. nas._, solum nasi; _tect. nas._, tectum nasi.] [Illustration: FIG. 12. Transverse section through the olfactory capsule in region of planum antorbitale. Abbreviations: _cav. prin._, cavum principale; _int. nar._, internal nares; _max._, maxillary; _nas._, nasal; _olf. em._, olfactory eminence; _p. fac._, pars facialis; _p. pal._, pars palatina; _pal._, palatine; _pla. ant._, planum antorbitale; _pvom._, prevomer; _sept. nas._, septum nasi; _sol. nas._, solum nasi; _tect. nas._, tectum nasi.]