-358 REPORT OF NEW JERSEY STATE MUSEUM. 
Laterally. Sidewise. . 
Lens. Concentric layers of fibres in close contact with and immediately behind 
the iris. 
Linea alba. A longitudinal band of tendon uniting right and left rectus 
muscles. 
Lingual artery. A division of the carotid trunk. 
Liver. A large organ of the alimentary canal near the thorax secreting the 
digestive juice or bile. 
Loreal plate. Scaly plate just before eye in lizards, and in same place, though 
with preoculars between, in snakes, 
Lunate. Form of new moon or crescent-shaped. 
Lymph. Fluid contained within the lymph-vessels, as blood without red cor- 
puscles. 
Lymph hearts. Two pairs of muscular dilatations in the course of certain 
vessels pumping lymph.into the viens, one beneath the supra-scapule 
and the other beside the posterior end of the urostyle. 
Macule acustice. Sensory cells produced into hair-like processes in the 
organ of hearing. 
Malpighian capsule. Blind or globular dilatation of each urinary capsule. 
Mandible. Lower jaw. 
Marginal plates. Bony plates along the edges of the costal plates in turtles. 
Maxilla. Upper jaw. 
Maxillary. Bone in each side of upper jaw following maxillary. 
Meckel’s cartilage. ‘The core of the mandible. 
Medula oblongata. Metencephalon. 
Medullary groove. A dorsal groove of the embryo, which unites and encloses 
a tube, to form the nervous system. 
Membranous labyrinth. The auditory organ. 
Mental plate. First plate at tip of mandible in lizards. 
Mento-meckelian. Distal end of mandibular cartilage. 
Mesencephalon. Mid-brain. 
Mesentery. Folds of the peritoneum supporting the stomach, intestine, liver, 
pancreas, spleen, etc. 
Mesethmoid. Ethmoid. 
Mesocele. Mid-ventricle of the brain. 
Mesonephros. The mid-kidney. 
Mesoplastron. Bone on side of plastron between hyo- and hypoplastron, in 
fossil turtles. 
Metacarpus. The hand, without the fingers. The metacarpals. 
Metacele. Fourth ventricle of the brain. 
Metamorphosis. A change from one form to another. 
Metanephric duct. A diverticulum given off from the posterior end of the 
Wolffian duct and connecting with the metanephros. 
Metanephros. The hind or permanent kidney. 
Metatarsus. ‘The foot, without the toes. Metatarsals. 
Metencephalon. Medulla oblongata, or posterior derivation of the hind brain. 
Minimus. Fifth digit of each limb. 
Muciferous. Producing or containing mucous. 
