OSTEOLOGY OF RHAMPHOCOTTUS 



477 



ABBREVIATIONS 



ac, actinost 



ab.v., abdominal vertebra 



a.f., anal fin 



aZs., alisphenoid 



an., angular 



ar., articular 



a. zyg., anterior zygapophysis 



bbr., basibranchials 



bo., basioceipital 



br., branchiostegal rays 



c, centrum 



cbr., ceratobranchials 



c.f., caudal fin 



chy., ceratohyal 



cl., clavicle 



d., dentary 



d.r., dorsal rays 



d.s., dorsal spines 



e., ethmoid 



epbr., epibranchials 



eo., exoccipital 



ephy., epihyal 



epo., epiotic 



eppl., epipleural 



fr., frontal 



h., hypural 



hbr., hypobranchials 



hhy., hypohyals 



hi. pr., haemal process 



/; in . , hyomandibular 



111. sp., haemal spine 



hpc, hyper coracoid 



hpoc, hypocoracoid 



hy., hyoidean arch 



in. .sp., interneural spine 



ihy., interhyal 



ih. sp., interhaemal spine 



iop., interoperculum 



I. ph., inferior pharyngeal 



m., maxilla 



VIC, mesocoracoid 



mpt., metapterygoid 



tnspt., mesopterygoid 



7ia., nasal 



n. pr., neural process 



n. sp., neural spine 



op., operculum 



opo., opisthotic 



p., parietal 



pa., palatine 



pas., parasphenoid 



pel., postclavicle 



pf., prefrontal 



pc. )-., pectoral rays 



p.g., pelvic girdle 



pm., premaxilla 



pop., preoperculum 



por., preorbital 



pot., posttemporal 



pro., prootic 



pto., pterotic 



ptor., postorbital 



pi., pterygoid 



p. zyg., posterior zygapojjhysis 



q., quadrate 



r., rib 



scl., supraclavicle 



so., supraoccipital 



s.g., shoulder-girdle 



s. ph., superior pharyngeal 



sor., suborbital 



spo., sphenotic 



sy., symplectic 



v., vomer 



v.f., ventral fin 



THE JOURNAL OF MORPHOLOGY, VOL. 31, NO. 3 



