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A huge ray (Manta birostris or Cephaloptera vampyrus) of the Gulf of Mexico and Southern Atlantic coasts. Several other related species take the same name. See Cephaloptera.

An order of cephalopods which includes those with two gills, an apparatus for emitting an inky fluid, and either eight or ten cephalic arms bearing suckers or hooks, as the octopi and squids. See Cephalopoda.

An order of worms parasitic in cephalopods. They are remarkable for the extreme simplicity of their structure. The embryo exists in two forms.

A small South African antelope (Cephalous mergens); -- called also impoon, and deloo.

A prefix from Gr. in; as, encephalon, entomology. See In-.

Pertaining to the encephalon or brain.

See Epencephalon.

Pertaining to the epencephalon.

ment, strongly acid or negative, or associated with chlorine, bromine, and iodine, in the halogen group of which it is the first member. It always occurs combined, is very active chemically, and possesses such an avidity for most elements, and silicon especially, that it can neither be prepared nor kept in glass vessel…

The anterior of the three principal divisions of the brain, including the prosencephalon and thalamencephalon. Sometimes restricted to the prosencephalon only. See Brain.

x used in scientific words in the sense of producing, generating: as, amphigen, amidogen, halogen.

The internal shell, or pen, of cephalopods like the squids.

One of an extinct genus of fossil cephalopods, allied to the Ammonites. The earliest forms are found in the Devonian formation, the latest, in the Triassic.

A West African antelope (Cephalophus rufilotus) of a deep bay color, with a broad dorsal stripe of black; -- called also conquetoon.

One of several very small species and varieties of African antelopes, of the genus Cephalophus, as the Cape guevi or kleeneboc (C. pyg. mæa); -- called also pygmy antelope.

An appearance as of a halo of light, surround the edges of dark object

A fossil cephalopod of the genus Hamites, related to the ammonites, but having the last whorl bent into a hooklike form.

Brazil. Harpy bat (Zoöl.) (a) An East Indian fruit bat of the genus Harpyia (esp. H. cerphalotes), having prominent, tubular nostrils. (b) A small, insectivorous Indian bat (Harpiocephalus harpia). Harpy fly (Zoöl.), the house fly.

nervous system, the mouth, and in the higher animals, the chief sensory organs; poll; cephalon.

One of the arms of the male of most kinds of cephalopods, which is specially modified in various ways to effect the fertilization of the eggs. In a special sense, the greatly modified arm of Argonauta and allied genera, which, after receiving the spermatophores, becomes detached from the male, and attaches itself to th…