作者: Ronald A. Campbell , Ian Beveridge
DOI: 10.1654/4261.1
关键词: Ecology 、 Chondrichthyes 、 Sphyrna zygaena 、 Biology 、 Urotrygon 、 Zoology 、 Mobula munkiana 、 Trypanorhyncha 、 Spiral valve 、 Dasyatis 、 Urobatis
摘要: Abstract Parachristianella parva sp. nov. is described from the spiral valve of Urobatis maculatus Garman, 1913 Gulf California, Mexico. The new species distinguished by its small size and number testes per segment (8–10). trygonis Dollfus, 1946 reported Mobula munkiana Notarbartolo di Sciari, 1987 Dasyatis brevis (Garman, 1880), whereas adult dimegacantha Kruse, 1959 for first time valves Urotrygon simulatrix Miyake McEachran, 1988; Sphyrna zygaena (Linnaeus, 1758); longus all California.