Welsh JH-Discovery(ies) Genus / Species Journal Year Volume Page Acanthoscurria atrox Toxicon 1963 1 165 Acanthoscurria sternalis Toxicon 1963 1 165 Centruroides gracilis Toxicon 1963 1 165 Condylactis gigantea Biol. Bull. 1958 115 551 Lasiodora klugi Toxicon 1963 1 165 Lycosa erythrognatha Toxicon 1963 1 165 Opisthocanthus cayaporum Toxicon 1963 1 165 Pamphobeteus roseus Toxicon 1963 1 165 Phoneutria fera Toxicon 1963 1 165 Physalia physalis Biol. Bull. 1958 115 551 Pterinopelma vellutinum Toxicon 1963 1 165 Scolopendra viridicornis Toxicon 1963 1 165 Tityus bahiensis Toxicon 1963 1 165 Tityus serrulatus Toxicon 1963 1 165 Tityus trinitatis Toxicon 1963 1 165 Tityus trivittatus Toxicon 1963 1 165 Vejovis spinigerus Toxicon 1963 1 165