84 



PROF. W. K. PARKEK ON THE 



mc. Metacarpal. 



q.j. Quadrato-jugal. 



mt. Metatarsal. 



r. Radius. 



m.ty. Membrana tympani. 



r.b.s. Rostrum of basisphenoid. 



ma'. Maxillary. 



re. Radiale. 



mx.p. Maxillo-palatine. 



r.st. Rostral process of sternum. 



71. Nasal. 



s.ag. Supra-angulare. 



nc. Notochord. 



sc. Scapula, 



n.pw. Nasal process of premaxillary. 



s.i.f. Sacro-ischiatic fenestra. 



■iiAO. Nasal wall. 



s.n. Septum nasi. 



ob.f. Obturator fenestra. 



s.o. Supraoccipital. 



oc.c. Occipital condyle. 



.s/>. Splenial. 



oj). Opisthotic. 



sq. Squamosal. 



p. Parietal. 



s.r. Sacral rib. 



pa. Palatine. 



s.sc. Suprascapula. 



p.ag. Posterior angular process. 



s.st. Suprastapedial. 



pa.s. Parasphenoid. 



st. Stapes and Sternum. 



pi. Pubis. 



st.k. Sternal keel. 



p.C7\ Precoracoid. 



st.r. Sternal ribs. 



jjc.j). Precostal process. 



s.v. Sacral vertebra. 



2>.e. Perpendicular ethmoid. 



t. Tibia. 



pg. Pterygoid. 



fe. Tibiale. 



jm. Prenasal. 



f.br. Tendon bridge. 



p.jKV. Prepollex. 



t.eo. Tympanic wing of exoccipital 



jjr.i. Pre-ilium. 



ty. Tympanic cavity. 



pr.o. Piootic. 



u. Ulna. 



j).s. Presphenoid. 



ue. Ulnare. 



pi.s.c. Posterior semicircular canal. 



up. Uropygium. 



pt.i. Post-ilium. 



us.v. Uro-sacral vertebrae. 



p>w. Premaxillary. 



V. Vomer. 



py. Pituitary space. 



vb. Vestibule. 



q. Quadrate. 



v.r. Vertebral rib. 



XI. DESCRIPTION OF THE PLATES. 



PLATE VII. 



Opisthocomus cristatus (1st Stage) : skeleton, side view, x 4| diam. 



