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|All Authors / Contributors:||James D Anderson|
|Notes:||Fig. 1.-Lateral and dorsal views of the spermatophore of Ambystoma t. tigrinum. Anterior is to the left. Scale = 2 mm.|
The spermatophore of Ambystoma t. tigrinum is described and compared with that of A. t. californiense and other species of Ambystoma. The spermatophores are the largest reported in the genus. The base is proportionally very wide and the stalk relatively long. The sperm cap rests in a depression and is held in place by raised horns on the apex from which it is not easily detached. Females may pick up all or part of the stalk with the sperm cap. The spermatophore is generally similar to those described for A. macrodactylum and A. talpoideum and the structure of the apex resembles that of A. laterale.