CHIRONECTES. 



MARMOSA. 



Measurements. Total length, 720; tail, 395; hind foot, 72. Skull: 

 occipito-nasal length, 53; Hensel, 48; zygomatic width, 30; inter- 

 orbital constriction, 7 ; palatal length (palatal arch to alveoli of incis- 

 ors), 31; length of upper molar series, 19; length of mandible to tips 

 of incisors from angle, 43. 



2. Marmosa. 



I.JEJ: C.jEj; Pj=f : M. = 5. 



Marmosa Gray, Lond. Med. Repos., xv, 1821, p. 308. Type 

 Didelphis! murina, Linnaeus. 



FIG. 2. MARMOSA CHAPMANI. TRINIDAD. 



No. 5499 Field Columbian Mus. Coll. Enlarged 



