Dibranchiata: alternatives and connections

An acrid herbaceous plant (Asarum Europaeum), the leaves and roots of which are emetic and cathartic. It is principally used in cephal…

Anterior; cephalic.

Black, like ink; inky; atramental.

Of or pertaining to ink; inky; black, like ink; as, atramental galls; atramentous spots.

An heraldic shield; a coat of arms, or a bearing on a coat of arms; armorial bearings.

The anterior or cephalic ganglion in insects and other invertebrates.

An order of Entomostraca; -- so named from the feet of branchiopods having been supposed to perform the function of gills. It includes…

With temporary gills: -- applied to those Amphibia in which the gills do not remain in adult life.

An instrument for the accurate measurement of small differences of height; esp. of the differences in the height of the upper surfaces…

The board used in the game of chess, having eight rows of alternate light and dark squares, eight in each row. See Checkerboard.

A cephalopod of the genus Sepia, having an internal shell, large eyes, and ten arms furnished with denticulated suckers, by means of w…

cephalopods having eight short tentacles plus two long ones

The tribe of aquatic Amphibia which includes Amphiuma, Menopoma, etc. They have permanent gill openings, but no external gills; -- cal…

cephalopods having two gills

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

The quotient of a unit divided by eight; one of eight equal parts; an eighth part.

That order of the Crinoidea which includes most of the living and many fossil forms, having jointed arms around the margin of the oral…

Breathing out air from the lungs; emitting fluid or volatile matter; exhaling; breathing the last breath; dying; ending; terminating.