| rana ridibunda | A species of the family ranidae which occurs primarily in europe and is used widely in biomedical research. (12 Dec 1998) |
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| rana | <zoology> A genus of anurous batrachians, including the common frogs. Origin: L, a frog. Source: Websters Dictionary (01 Mar 1998) |
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| rana catesbeiana | A species of the family ranidae (true frogs). The only anuran properly referred to by the common name "bullfrog", it is the largest native anuran in north america. (12 Dec 1998) |
| rana esculenta | An edible species of the family ranidae, occurring in europe and used extensively in biomedical research. Commonly referred to as "edible frog". (12 Dec 1998) |
| Rana pipiens | Common European frog. (18 Nov 1997) |
| rana temporaria | A species of the family ranidae occurring in a wide variety of habitats from within the arctic circle to south africa, Australia, etc. (12 Dec 1998) |