608 The American Naturalist. [July, : | 
1. The terms preoccupied by other authors. E 
2. The terms founded upon different parts of the same animal, 2 
and thus largely preoccupied by the author himself. E, 
3. The terms founded upon imperfect or indefinite types. w 
4. The terms founded upon reptilian or icthyopsidan teeth. 

A. ea = A. MULTITUBERCULATA Cope. a 
MOLOMIDE. _) (In part.) a 
Cimotomys gracilis - A 
ellus 3 
z igona é 
IMOLODONTID . 
Cimolodon nitidus ¢ = 1. PLaGiauLacipe Gill. 
Nanomys a Cimotomys Marsh; two or 
3. PLAGIAULACIDA. three species. 
Halodon sculptus 
S Serratus 
“= formosus 

. DIPRIODONTID ® 
Di priodon robustus 
natus 


= ? 2, STEREOGNATHIDÆ, fam. nov. 
MENISCOEssus Cope; two 
species, 
T3 riprodon alae 
eratus 
Selenacodon ; Pacis 
brevis 
Probably preoccupied. 
pumilus 
? Camptomus amplus 
? Oracodon anceps Indefinite types or preoccupied. 
? B. PANTOTHERIA. 
| 
6. ALLODONTIDE, 
Allacodon lentus \ 
} 
? 7. DRYOLESTIDÆ. Indefinite type. 
? Dryolestes tenax 
C. MARSUPIALIA. B. Order indeterminate = Creodon ta, 
Didelphops vorax Insectivora or Marsupialia. 
" fror 
“` compti DipELPHors Marsh; two spec’s. 
CSitadistes Meti: perlite ies Marsh ; ; ? species, 
a rtus 
D. INSECTIVORA. Not defined. 
- Pediomys elegans 

