Rays of the World
Peter Last, Gavin Naylor, Bernard Séret, William White, Matthias Stehmann, Marcelo de Carvalho
Csiro Publishing, Dec 1, 2016 - Science - 800 pages
Rays are among the largest fishes and evolved from shark-like ancestors nearly 200 million years ago. They share with sharks many life history traits: all species are carnivores or scavengers; all reproduce by internal fertilisation; and all have similar morphological and anatomical characteristics, such as skeletons built of cartilage. Rays of the World is the first complete pictorial atlas of the world’s ray fauna and includes information on many species only recently discovered by scientists while undertaking research for the book. It includes all 26 families and 633 valid named species of rays, but additional undescribed species exist for many groups. Rays of the World features a unique collection of paintings of all living species by Australian natural history artist Lindsay Marshall, compiled as part of a multinational research initiative, the Chondrichthyan Tree of Life Project. Images sourced from around the planet were used by the artist to illustrate the fauna. This comprehensive overview of the world’s ray fauna summarises information such as general identifying features and distributional information about these iconic, but surprisingly poorly known, fishes. It will enable readers to gain a better understanding of the rich diversity of rays and promote wider public interest in the group. Rays of the World is an ideal reference for a wide range of readers, including conservationists, fishery managers, scientists, fishers, divers, students and book collectors.
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adult males anterior lobe apex Atlantic Attains at least benthic blotches broad broadly rounded brownish caudal fin clasper cm TL COLOUR concave continental shelf continental slope dark darker Demersal denticles depths dermal denticles Disc anterior margin disc margin Dorsal disc dorsal fins Dorsal surface eyes females firm rostral cartilage greyish brown guitarfish HABITAT AND BIOLOGY heartshaped disc IDENTIFICATION Indian Ocean interdorsal internasal interorbital space lateral folds Males mature median row Mediumsized skate Mouth nasal curtain NorthWest Pacific Nostrils nuchal thorns numbfish ocelli orbit length orbital thorns pale pectoral fins pectoral marking Pectoralfin radials pelvic fins posterior lobe posterior margin precloacal length predorsal tail vertebrae Predorsal vertebrae preorbital rays rhombic disc width rows in upper sawfishes sensory pores SIMILAR SPECIES skin skin folds slender slightly slope snout length snout tip snout with firm SouthWest spiracles surface of disc thornlets Tooth rows undersurface upper disc upper jaw Upper surface Ventral surface weakly