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508 BULLETIN 34, UNITED STATES NATIONAL MUSEUM. 



PLATE LIV." 

 Digestive apparatus of Salientia 



Fig. 1. Pelohates fuscits. 



2. Pseiidis j)ar(idoxa, larva. 



3. Pleurodema bibroni ; py, pylorus. 



4. Ciratophrys dorsata. 



5. Leptcdacti/hts ti/phoniua. 

 tj. Engystoma mkropa. 



PLATE LV. 



Viscera of Salientia, 



Fig. 



Bufo melanostictvB. 

 Hyla cam lea. 

 PhyUomedusa hicolor. 

 Himisua i/iiinei'nse. 

 linrictps yibbosus. 

 Eana caltsbiana. 



PLATE LVI. 



Brains of Batracbia, chiefly Salientia, natural size or enlarged two diameters. 



Fig. 1. ytctitriia maculains, fight ventricle exposed ; a, roof of meeencephalou rt- 

 nioved; b, floor of mesencephalon enlarged. 



2. Bemisal'imaudra cristata. from above ; a, sagittal .section of mesencephalon : 



6, prosencephalon, right ventricle exposed ; c, floor of mesenct'i)halon. 

 showing comuiis.sure c and cerebellnni, cjjc, and fourth ventricle, iv; d. 

 commissure from bihind: p. c, plexus choro'ideiis. 



3. Si})liono}>s (inuulalus (Mus. Herolin.), from above: a. sagittal section, tin- 



posterior part of the hemisphere cut off obli«iuely ; b, hemispheres sprtad 

 apart, displaying thuiamencej)halon and mesencephalon ; c, prosenceidi- 

 alon, left ventricle exposed; d, thalaniencephalon with epiphysis, fntiu 

 above; e, mesencephalon, epencephalon, and fourth ventricle;/, fourth 

 vertricle on removal of cerebellum. Lettering; pr, jjrosencephalon : »i», 

 mesencephalon; te, thalaniencephalon; ee, epencephalon; hy, hypophysis; 

 (■;*, epiphysis; iv, fourth ventricle, 



4. Bufo viridis. from above, left ventricle exposed; a, sagittal section; p. c, 



plexus choroideus. 



5. Epidalea calamita, with plexus choroideus. 



6. Ahjtifi obateiricatiH. 



7. Pelobatea fuscna. 



8. Pleurodema bibroni. 



y, Leptodactylua caliyinosus. 

 10. Phrynomantia bifasciatua, 

 IL Ilrevicejja moaaambicua. 



12. Phinoderma darwinii. 



13. Atelopiis variiia; a, roof of mesencephalon 'emoved, showing floor; ft, pros- 



encephalon, left ventricle exposed. 



14. DipIopeJma oniatum. 



15. HyJambatea maculatua. 

 1(3. Rana eryihraea. 



17. Eana escnlenta, from above, with plexus choroideus removed (p. c); a, right 



hemisphere removed, left ventricle expo.sed, and mesencephalon exposed; 

 h, left ventricle. 



18, Xcnopna capenaia: a, right ventricle and tbalamencephalon exposed; p. r., 



choroid plexus and artery. 



