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branchia

branchia

branchia Sentence Examples

  • Posterior branchia triradiate.

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  • The heart is usually posterior to the branchia (proso-branchiate).

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  • The sub-class is now divided into two orders: the Aspidobranchia in which the branchia or ctenidium is bipectinate and attached only at its base, and the Pectinibranchia in which the ctenidium is monopectinate and attached to the mantle throughout its length.

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  • In these there are neither branchia nor osphradium, and the pallial chamber which retains its large open ing serves as a lung.

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  • h, The mantle-skirt reflected over the sides branchia the mouth-bearing cylinder is in C, Head, the letter placed near the right eye.

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  • Such adaptations are the transparency and colourlessness of the tissues, and the modifications of the foot, which still shows in Atlanta the form common in Pectin:branchia (compare fig.

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  • No buccal appendages or suckers; a very long evaginable proboscis; a quadriradiate terminal branchia.

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  • Head very large, not marked off from the body; neither branchia nor suckers; fins situated near the middle of the body.

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  • No branchia FIG.

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  • No branchia; two long and branched buccal appendages.

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  • br, Secondary branchia surrounding the anus.

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  • External to the branchia are seen ten club-like processes of the dorsal wall, these are the " cerata " which are characteristically developed in another sub-order of Opisthobranchs.

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  • No branchia.

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  • Visceral mass and shell conical; head flattened; pallial cavity aquatic, but without a branchia; genital apertures separated.

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  • Visceral mass and shell sinistral; inferior pallial lobe very prominent, and transformed into a branchia.

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  • Shell conical, not spiral; inferior pallial lobe transformed into a branchia.

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  • The heart is usually posterior to the branchia (proso-branchiate).

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  • The sub-class is now divided into two orders: the Aspidobranchia in which the branchia or ctenidium is bipectinate and attached only at its base, and the Pectinibranchia in which the ctenidium is monopectinate and attached to the mantle throughout its length.

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  • In these there are neither branchia nor osphradium, and the pallial chamber which retains its large open ing serves as a lung.

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  • h, The mantle-skirt reflected over the sides branchia the mouth-bearing cylinder is in C, Head, the letter placed near the right eye.

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  • Such adaptations are the transparency and colourlessness of the tissues, and the modifications of the foot, which still shows in Atlanta the form common in Pectin:branchia (compare fig.

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  • Stylifer, the operculum is lost, animal fixed by a large proboscis which forms a pseudopallium covering the whole shell except the extremity of the spire, parasitic on all groups of Echinoderms. Entosiphon, visceral mass still coiled; shell much reduced, proboscis very long forming a pseudopallium which covers the whole body and projects beyond in the form of a siphon, foot and nervous system present, eyes, branchia and anus absent, parasite in the Holothurian Deima blakei in the Indian Ocean.

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  • No shell; visceral mass not coiled; no sensory organs, nervous system, branchia or anus; body reduced to a more or less tubular sac; hermaphrodite and viviparous; parasitic in Holothurians; larvae are veligers, with shell and operculum.

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  • No buccal appendages or suckers; a very long evaginable proboscis; a quadriradiate terminal branchia.

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  • Posterior branchia triradiate.

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  • Head very large, not marked off from the body; neither branchia nor suckers; fins situated near the middle of the body.

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  • No branchia FIG.

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  • No branchia; two long and branched buccal appendages.

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  • Body externally symmetrical; anus median, posterior, and generally dorsal, surrounded by ramified pallial appendages, constituting a secondary branchia.

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  • br, Secondary branchia surrounding the anus.

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  • External to the branchia are seen ten club-like processes of the dorsal wall, these are the " cerata " which are characteristically developed in another sub-order of Opisthobranchs.

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  • No branchia.

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  • Anus and branchia posterior, below the mantle-border.

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  • Visceral mass and shell conical; head flattened; pallial cavity aquatic, but without a branchia; genital apertures separated.

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  • Visceral mass and shell sinistral; inferior pallial lobe very prominent, and transformed into a branchia.

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  • Shell conical, not spiral; inferior pallial lobe transformed into a branchia.

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