FIGURE 22 in Taxonomy and morphology of species of the genus Squalus Linnaeus, 1758 from the Southwestern Atlantic Ocean (Chondrichthyes: Squaliformes: Squalidae)

FIGURE 22. Neurocranium of paratype of Squalus lobularis (UERJ 1661, paratype) in (A) dorsal, (B) ventral and (C) lateral views. Abbreviations: ba, basal angle; bp, basal plate; btp, basitrabecular process; cp1, first cartilaginous process; csa, anterior semicircular canal; csl, lateral semicircular canal; csp, posterior semicircular canal; ec, ethmoidal canal; elf, endolymphatic foramen; ep, epiphysial pit; es, eye-stalk; fca, foramen for carotid artery; foa, foramen for orbital artery; fopp, profundus canal; fops, series of foramina for superficial ophthalmic branch of trigeminal and facial nerves; gb, glossopharyngeal base; hmf, hyomandibular facet; hmVII, foramen for hyomandibularis facialis; lra, lateral rostral appendage; mra, median rostral appendage; ns, nasal capsule; oc, otic capsule; occ, occipital condyle; opp, opisthotic process; otc, otic crest; pcf, precerebral fossa; pecet, ectethmoid process; plf, perilymphatic foramen; poc, preorbital canal; pop, postorbital process; potp, prootic process; pow, preorbital wall; psb, efferent pseudobranchial artery foramen; r, rostrum; rk, rostral keel; sec, subethmoid chamber; sep, supraethmoidal process; ser, subethmoidean ridge; snf, subnasal fenestra; soc, supraorbital crest; II, optic foramen; III, oculomotor foramen; IV, trochlear foramen; V, V I I, foramen prooticum; VI, abducens foramen; IX, foramen for glossopharyngeal nerve.