FIGURE 47 in Morphological and taxonomic revision of species of Squatina from the Southwestern Atlantic Ocean (Chondrichthyes: Squatiniformes: Squatinidae)

FIGURE 47. Morphology of vertebral skeleton and unpaired fins in Southwestern Atlantic Squatina. A) Transverse section of third vertebral centra of S. argentina (MOFURG 457, juvenile male, 359 mm TL). B) First dorsal fin skeleton of S. occulta (NUPEC 1106, juvenile male, 315 mm TL). C) Ventral view of anterior vertebrae and expanded basiventrals of S. occulta (NUPEC 1452, adult, head only). D) Caudal fin skeleton of S. occulta (NUPEC 1227, juvenile male, 569 mm TL). E) Lateral view of anterior vertebrae of S. occulta (NUPEC 1452). Abbreviations: bdc, basidorsal cartilage; bv1, basiventral 1; bv3, basiventral 3; ccr, concentric calcification rings; cq, ceratotrichia; cr, caudal radial; db, dorsal basal; ha, hemal arch, idc, interdorsal cartilage; na, neural arch; nsh, notochordal sheat; rb, ribs; spc, spinal cord; vc, vertebral centra.