Part 3

XXV. —— fuscipes.

XXVI. Reithrodon cuniculoïdes.

XXVII. —— chinchilloïdes.

XXVIII. Abrocoma Bennettii.

XXIX. —— Cuvieri.

XXX. Didelphis crassicaudata.

XXXI. —— elegans.

XXXII. —— brachyura.

XXXIII. Skulls, and molar teeth of various species of Rodents.

Fig. 1. a. Skull of Abrocoma Cuvieri—natural size.

— 1. b. Side view of ditto.

— 1. c. Ramus of lower jaw—outer side.

— 1. d. Lower jaw seen from above.

— 1. e. Molar teeth of the upper jaw magnified.

— 1. f. ditto of lower jaw.

— 2. a. Skull of Reithrodon cuniculoïdes.

— 2. b. Incisors of the upper jaw magnified.

— 2. c. Molar teeth of the upper jaw magnified.

— 2. d. ditto of the lower jaw.

— 2. e. ditto of upper jaw of a younger specimen.

— 3. a. Portion of a skull of Mus Braziliensis.

— 3. b. ditto, view of palate.

— 3. c. Molar teeth of the upper jaw magnified.

— 3. d. ditto of lower jaw.

— 4. a. Molar teeth of lower jaw of Reithrodon typicus magnified.

— 5. a. Molar teeth of the upper jaw of Mus canescens.

— 5. b. ditto of under jaw.

— 5. c. Skull of ditto.