Decapod Crustacea of the Californian and Oregonian Zoogeographic Provinces 3371 Author Wicksten, Mary K. text Zootaxa 2012 2012-07-04 3371 1 307 journal article 1175­5334 Key to species of family Hippolytidae 1. No spines on first segment of antennular peduncle, apex of rostrum trifid. Usually among large brown algae...................................................................................................... Hippolyte clarki – 1 or 2 spines on first segment of antennular peduncle, apex of rostrum bifid. Usually among sea grasses, Zostera sp. ......................................................................................... Hippolyte californiensis