Inheritance of Paternal Characters in Echinoid Hybrids

Abstract

IN the Journal of the Marine Biological Association for October, 1911, we published a “Preliminary Notice on the Experimental Hybridisation of Echinoids”. It comprised the results up to date of an investigation which had been carried on at the Plymouth Laboratory during 1909, 1910, and 1911. The forms experimented on were Echinus esculentus, E. acutus, and E. miliaris. Certain characters were studied in the hybrids, which appear in the late larvæ and do not vary in the parental forms. As the result of three years' work, we came to the conclusion that the inheritance of these characters was always strictly maternal.