FIGURE 4 in Hemitriakis indroyonoi sp. nov., a new species of houndshark from Indonesia (Carcharhiniformes: Triakidae)

FIGURE 4. Hemitriakis indroyonoi sp. nov. chondrocrania from CSIRO H 6817-01, female 656 mm TL: A, dorsal view; B, ventral view; C, lateral view. Scale bar = 1 cm. Abbreviations: AF—anterior fontanelle; ASC —anterior semicircular canal; BP—basal plate; CF—internal carotid foramen; ECN—ectethemoid condyle; EPN—epiphysial notch; FCV—foramen for anterior cerebral vein; FEN—endolymphatic foramen; FES—foramen for efferent spiracular artery; FM—foramen magnum; FOC—foramen for superficial ophthalmic nerve; FPC, FPE and FPI—cranial, external and orbital foramina of deep ophthalmic nerve; FPN —perilymphatic foramen; FII—optic nerve foramen; FIII—oculomotor nerve foramen; FIV—trochlear nerve foramen; FIX—glossopharyngeal nerve foramen; FX—vagus nerve foramen; HF—hyomandibular facet; IOC —interorbital canal; LR—lateral rostral cartilage; MR—medial rostral cartilage; NA—nasal aperture; NC— nasal capsule; NF—nasal fontanelle; NP—orbital notch; O—orbit; OC—occipital condyle; OCN—occipital centrum; ONF—orbitonasal foramen; OR—opisthotic ridge; ORF—orbital fissure; OT—otic capsule; PC— preorbital canal; PR—preorbital process; PRF—parietal fossa; PSC—posterior semicircular canal; PT—postorbital process; RF— rostral fenestra; RN—rostral node; SC—supraorbital crest; SEF—subethmoid fossa; SF—stapedial foramen; SR—sphenopterotic ridge; SS—suborbital shelf.