. Bulletin of the British Museum (Natural History). PPmx 1: Palato-premaxillary ligament Pthyl: Posterohyal (Posterior ceratohyal) Q: Quadrate SE Max 1: Superior ethmomaxillary ligament So Lig P: Suborbital branch of ligamentum primordium Sthy M ; Sternohyoideus muscle Symp: Symplectic T: Tendon TAla'': Tendon from adductor Ala" muscle TAl^: Tendon from adductor Al|8 muscle TA^+2: Shared tendon of adductor A1/3 and A2 muscles TA1/S+A2/3: Shared tendon of adductor A1/3 and A2^ muscles TA2/S: Tendon from adductor A2/3 muscle TD: Ligament from dentary joining tendon from adductor Al|8 muscle
. Bulletin of the British Museum (Natural History). PPmx 1: Palato-premaxillary ligament Pthyl: Posterohyal (Posterior ceratohyal) Q: Quadrate SE Max 1: Superior ethmomaxillary ligament So Lig P: Suborbital branch of ligamentum primordium Sthy M ; Sternohyoideus muscle Symp: Symplectic T: Tendon TAla'': Tendon from adductor Ala" muscle TAl^: Tendon from adductor Al|8 muscle TA^+2: Shared tendon of adductor A1/3 and A2 muscles TA1/S+A2/3: Shared tendon of adductor A1/3 and A2^ muscles TA2/S: Tendon from adductor A2/3 muscle TD: Ligament from dentary joining tendon from adductor Al|8 muscle Tp: Tooth plate on ectopterygoid T Sthy: Tendon from sternohyoid muscle to hyoid arch UE Pmx: Upper ethmopremaxiilary ligament Vhyl: Ventrohyal Jaw and associated muscles and ligaments I. ALBULIDAE, PTEROTHRISSIDAE and HALOSAURIDAE PTEROTHRISSIDAE Pterothrissus belloci Cadenat Since the specimens available for dissection had suffered some damage to the snout region, only the jaw muscles will be described. The jaw ligaments are described from a specimen of P. gissu (p. 69). DOp Ad Mand. 10 mm Fig. 1 Pterothrissus belloci. Jaw musculature in right lateral view. The supramaxilla has been re- moved to show the maxillo-mandibular ligaments. Drawn by Miss E. Tarr from specimen RUSI 3674, 13-8 cm standard length. 68. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Museum (Natural History). London : BM(NH)
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