Abstract

The hatchery culture of a previously unknown hybrid abalone combining the parentage of four species of Haliotis is described. The parent specimens, both hybrids themselves, were a female H. rufescens Swainson, 1822 × H. sorenseni Bartsch, 1940, and a male H. corrugata Wood, 1828 x H. walallensis Stearns, 1899. Details of the technique used to accomplish this, and the problems encountered during the relatively difficult culture of this multi-species hybrid, are discussed. Shell specimens of this exceptional cross are described and illustrated with high-resolution color photography, and the pigmentation and morphology of the soft body parts are described. Some possible reasons why such an unusual hybrid would not likely be found in natural populations are advanced.

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