Table 4.
Summary of the numbers of species shared between Mexico City and neighboring Mexican states (not including introduced species). The percent of Mexico City species shared by a neighboring state are given in parentheses. Total refers to the total number of species found in Mexico City and two neighboring states (i.e., regional species pool) and the number in parentheses in this column is the percent of the regional species pool found in Mexico City. – indicates either Mexico City or the neighboring state has no species in the taxonomic group, or none of that specific taxon is shared between the states, thus no value for shared species is provided.
| Taxon | Mexico City | State of Mexico | Morelos | Total |
|---|---|---|---|---|
| Class Amphibia | 18 | 16 (88.9) | 14 (77.8) | 55 (32.7) |
| Order Anura | 9 | 8 (88.9) | 7 (77.8) | 39 (23.1) |
| Bufonidae | 1 | 1 (100) | 1 (100) | 5 (20.0) |
| Centrolenidae | – | – | – | 1 (0) |
| Craugastoridae | 1 | 1 (100) | 1 (100) | 5 (20.0) |
| Eleutherodactylidae | 1 | – | – | 5 (20.0) |
| Hylidae | 3 | 3 (100) | 3 (100) | 10 (30.0) |
| Leptodactylidae | – | – | – | 1 (0) |
| Microhylidae | – | – | – | 3 (0) |
| Phyllomedusidae | – | – | – | 1 (0) |
| Ranidae | 2 | 2 (100) | 1 (50) | 7 (28.6) |
| Scaphiopodidae | 1 | 1 (100) | 1 (100) | 1 (100) |
| Order Caudata | 9 | 8 (88.9) | 7 (77.8) | 16 (56.3) |
| Ambystomatidae | 3 | 2 (66.7) | 1 (33.3) | 8 (37.5) |
| Plethodontidae | 6 | 6 (100) | 6 (100) | 8 (75.0) |
| Class Reptilia | 45 | 43 (95.6) | 35 (77.8) | 125 (36.0) |
| Order Squamata | 43 | 41 (95.3) | 33 (76.7) | 120 (35.8) |
| Suborder Lacertilia | 14 | 14 (100) | 12 (85.7) | 49 (28.6) |
| Anguidae | 1 | 1 (100) | 1 (100) | 5 (20.0) |
| Dactyloidae | – | – | – | 1 (0) |
| Eublepharidae | – | – | – | 1 (0) |
| Helodermatidae | – | – | – | 1 (0) |
| Iguanidae | – | – | – | 1 (0) |
| Phrynosomatidae | 10 | 10 (100) | 9 (90.0) | 23 (43.5) |
| Phyllodactylidae | – | – | – | 3 (0) |
| Scincidae | 2 | 2 (100) | 2 (100) | 6 (33.3) |
| Teiidae | 1 | 1 (100) | – | 8 (12.5) |
| Suborder Serpentes | 29 | 27 (93.1) | 21 (72.4) | 71 (40.8) |
| Boidae | – | – | – | 1 (0) |
| Colubridae | 9 | 9 (100) | 9 (100) | 24 (37.5) |
| Dipsadidae | 5 | 4 (80.0) | 2 (40.0) | 18 (27.8) |
| Elapidae | 1 | 1 (100) | 1 (100) | 3 (33.3) |
| Leptotyphlopidae | 1 | – | – | 3 (33.3) |
| Loxocemidae | – | – | – | 1 (0) |
| Natricidae | 7 | 7 (100) | 4 (57.1) | 10 (70.0) |
| Viperidae | 6 | 6 (100) | 5 (83.3) | 11 (54.5) |
| Order Testudines | 2 | 2 (100) | 2 (100) | 5 (40.0) |
| Emydidae | – | – | – | 1 (0) |
| Geoemydidae | – | – | – | 1 (0) |
| Kinosternidae | 2 | 2 (100) | 2 (100) | 3 (66.7) |
| Total | 63 | 59 (93.7) | 49 (77.8) | 180 (35.0) |