Research Article
The Maryland Amphibian and Reptile Atlas: A Volunteer-Based Distributional Survey
Table 3
Mean number of presence records per class/order per quad. Number of quads = 232.
| Class/order | Mean | SD |
| Amphibia/Anura | 27.43 | 26.03 | Amphibia/Caudata | 6.59 | 8.35 | Reptilia/Squamata-Lacertilia | 1.73 | 3.65 | Reptilia/Squamata-Serpentes | 12.62 | 13.70 | Reptilia/Testudines | 11.42 | 11.37 |
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