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the body of an animal into similar right and left halves. The line in which it meets the dorsal surface has been called the dorsimeson, and the corresponding ventral edge the ventrimeson. B. G. Wilder.

The dorsal portion of the mesothorax of insects.

The fold of peritoneum which attaches the testis to the dorsal wall of the body cavity or scrotal sac.

The scutum or dorsal plate of the middle thoracic segment of an insect. See Illust. of Butterfly.

The dorsal portion of the metaphorax of insects.

mily Mirænidæ. They differ from the common eel in lacking pectoral fins and in having the dorsal and anal fins continuous. The murry (Muræna Helenæ) of Southern Europe was the muræna of the Romans. It is highly valued as a food fish.

The two anterior of the four lobes on the dorsal side of the midbrain of most mammals; the anterior optic lobes.

A specied of wild sheep (Ovis Hodgsonii), native of Nepaul and Thibet. It has a dorsal mane and a white ruff beneath the neck.

rebro-spinal, axis; -- opposed to hemal. As applied to vertebrates, neural is the same as dorsal; as applied to invertebrates it is usually the same as ventral. Cf. Hemal. Neural arch (Anat.), the cartilaginous or bony arch on the dorsal side of the centrum of the vertebra in a segment of the spinal skeleton, usually i…

The dorsal process of the neural arch; neural spine; spinous process.

Of or pertaining to the back; dorsal.

of the vertebræ and the posterior part of the base of the skull are developed; the chorda dorsalis. See Illust. of Ectoderm.

The dorsal lobe or branch of a parapodium. See Parapodium.

shark (Ginglymostoma cirratum), native of the West Indies and Gulf of Mexico, having the dorsal fins situated behind the ventral fins. -- To put to nurse, or To put out to nurse, to send away to be nursed; to place in the care of a nurse. -- Wet nurse, Dry nurse. See Wet nurse, and Dry nurse, in the Vocabulary.…

al (Helictis moscatus, or H. orientalis), native of Eastern Asia and the Indies. It has a dorsal white stripe, and another one across the shoulders. It has a strong musky odor.

The middle of the posterior, or dorsal, margin of the great foramen of the skull.

ng ligament of the back of the neck in quadrupeds. It connects the back of the skull with dorsal spines of the cervical vertebræ, and helps to support the head. Called also paxywaxy and packwax.

A delicate bar of cartilage connecting the dorsal and ventral extremities of the first pair of bronchial cartilages in the syrinx of birds.

rch in many fishes, or one of the upper pharyngeals, or pharyngobranchials, which are the dorsal elements in the complete branchial arches.

Of or pertaining to the pharynx and the branchiæ; -- applied especially to the dorsal elements in the branchial arches of fishes. See Pharyngeal. -- n.