Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum . erior boneof the complex is the coracoid, which is roughly triangular. From its antero-dorsal corner a ridge runs ventro-caudally. Above the ridge is the dorsalprocess of the coracoid; the ventral process of the coracoid meets the cleithrumjust above the ventral process of that bone. Dorso-medially between thecleithrum and the coracoid lies the scapula, a fairly small semicircular boneperforated by the scapular foramen, through which the nerves supplying theabductor musculature of the fin pass. The scapula bears the a
Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum . erior boneof the complex is the coracoid, which is roughly triangular. From its antero-dorsal corner a ridge runs ventro-caudally. Above the ridge is the dorsalprocess of the coracoid; the ventral process of the coracoid meets the cleithrumjust above the ventral process of that bone. Dorso-medially between thecleithrum and the coracoid lies the scapula, a fairly small semicircular boneperforated by the scapular foramen, through which the nerves supplying theabductor musculature of the fin pass. The scapula bears the articular surfacesfor the pectoral fin. No bony pads such as those described by Morrow (1957) were found inany of the South African specimens of M. indica. If they are not present in allspecimens it seems unlikely that those found by Morrow are of any significancein the mechanism of the rigid joint. The pectoral complex is very similar in M. indica and M. audax, with amajor difference in the articulation of the fin (described below in section V), dorsal proceis of coracoid. Fig. I. Pectoral girdle of Makaira indica. 170 ANNALS OF THE SOUTH AFRICAN MUSEUM articular surface forannalsofsoutha4861964sout
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Keywords: ., bookcentury1800, bookdecade1890, booki, booksubjectnaturalhistory
