Ctenidium Definition

Ctenidium Sentence Examples

• It will be remembered that, according to Spengel, the osphradium of mollusca is definitely and intimately related to the gill-plume or ctenidium, being always placed near the base of that organ; further, Spengel has shown that the nerve-supply of this olfactory organ is always derived from the visceral loop. Accord ingly, the nerve-supply FIG.

• Spire of shell much reduced; a single ctenidium.

• No ctenidium, but a pulmonary cavity; heart with a single auricle, not traversed by the rectum.

• This organ has, without reason, been supposed to represent the second ctenidium of the typical mollusc, which it cannot do on account of its position.

• To the left of the ctenidium a pulmonary sac, separated from it by an incomplete septum, am phibious.