362 REPORT OF NEW JERSEY STATE MUSEUM. 
Pulmonary veins. Veins carrying purified blood from the lungs to the left 
auricle. 
Pupil. A slit-like perforation in the middle of the iris. 
Pygal plate. Posterior neural plate of a turtle’s carapace. 
Quadrate. Bone of suspensorium to which mandible is hinged. 
Quadratojugal. Posterior bone of upper jaw, behind maxillary, and con- 
necting with quadrate. 
Quincunx. Set of 5 arranged ::-: 
Radiale. Carpal bone at end of radius. 
Radius, Outer smaller bone of fore limb. 
Ranoid. Frog-like, ete. 
Ray. Cartilaginous rod supportiing membrane of a fin. 
Rectum. Last portion of the intestine. 
Rectus abdominis. A paired ventral band of muscles. 
Recurved. Curved upward. 
Renal portal vems. Veins extending from the femoral veins to the kidneys. 
Reticulate. Marked like a network. 
Retina. The delicate transparent innermost membrane lining the choroid. 
Retractile. Capable of being drawh in. 
Retrorse. ‘Turned backward. 
Rhinencephalon. ‘The olfactory lobe, a prolongation of each hemisphhere of 
the brain. 
Rhinocele. ‘The olfactory ventricle. 
Rictal. Relating to the rictus. 
Rictus. Corner or gape of mouth. 
Rostral. Relating to the snout. 
Rostral plate. Scaly plate at tip of snout in front, in lizards and snakes. 
Rudimentary. Undeveloped. 
Rugose. Rough with wrinkles. 
Sacculus. Ventral compartment of the organ of hearing. 
Sacral. Relating to the sacrum. 
Sacral vertebre. Vertebre of the tail. 
Scapula. Shoulder-blade. 
Scapular arch. Shoulder-girdle. 
Schneiderian membrane. ‘The olfactory mucous membrane. 
Sciatic vein. A vein extending from the back of the hind leg to the renal 
portal vein. 
Sclerotic. The optic capsule. 
Scute. External bony or horny plate. 
Semicircular canals. ‘Tubes, usually three, in the dorsal compartment of the 
organ of hearing. 
Septum. A thin partition. 
Septum auricularum. Partition separating the auricles. 
Serrate. Notched like a saw. 
Sessile. Without a stem. 
Setaceous. Bristly. 
