prosobranchn.adj.

Brit.

/ˈprɒsə(ʊ)braŋk/, U.S.

/ˈprɑsəˌbræŋk/

Origin: A borrowing from French. Etymon: French Prosobranche.

Etymology: < French Prosobranche (as plural, Prosobranches , H. Milne-Edwards 1848, in Ann. des sci. naturelles: zool. 9 109) < ancient Greek πρόσω forwards ( < προ- pro- prefix¹ + a suffix forming adverbs indicating direction) + βράγχια gills (see branchiae n.); compare -branch comb. form. Compare scientific Latin Prosobranchia , subclass name (1866 or earlier) and Prosobranchiata (see prosobranchiate adj.). With use as adjective compare earlier prosobranchiate adj.

Zoology.

A. n.

A gastropod mollusc of the large subclass Prosobranchia, which comprises forms having the mantle cavity and gills, etc., anterior to the heart, and includes limpets, abalones, conches, and many terrestrial and aquatic snails. Cf. opisthobranch n., pulmonate n.The subclass Prosobranchia comprises the archaeogastropods, mesogastropods, and neogastropods; it has recently been replaced by a number of different subclasses (see quot. 2000).

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Gastropoda > [noun] > superorder Branchifera > order Prosobranchiata > member of

prosobranch1851

prosobranchiate1880

1851 S. P. Woodward Man. Mollusca i. 50 The sexes are distinct in the most highly organized (or diœcious) mollusca... The prosobranchs pair.

1877 T. H. Huxley Man. Anat. Invertebrated Animals viii. 511 No Prosobranch is..symmetrical.

1958 J. E. Morton Molluscs ii. 28 In more active prosobranchs the head and foot are attached to the viscera by a narrow ‘waist’.

2000 C. Tudge Variety of Life ii. vii. 239 Now, the true limpets are placed in their own subclass, the Patellogastropoda... The rest of the old ‘prosobranchs’ are distributed among the other four of the new subclasses: Vetigastropoda, Neritopsina, Caenogastropoda, and Heterobranchia.

B. adj.

Belonging to or characteristic of the subclass Prosobranchia.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Gastropoda > [adjective] > of superorder Branchifera > belonging to order Prosobranchiata

prosobranchiate1853

streptoneurous1883

prosobranch1886

1886 J. P. McMurrich in Amer. Naturalist (1887) 21 557 (title) A contribution to the embryology of the prosobranch gasteropods.

1924 E. G. Conklin in E. V. Cowdry Gen. Cytol. ix. 551 In the genesis of the ‘wormshaped’..spermatozoa of prosobranch gasteropods, the nucleus breaks up into chromatic masses.

1958 J. E. Morton Molluscs iv. 73 In primitive shelled opisthobranchs the ciliated filaments of the prosobranch gill are generally replaced by thicker fleshy folds.

2001 W. A. Shear & P. A. Selden in D. Edwards & P. G. Gensel Plants invade Land iii. 33 Salt marshes are providing a route for..crabs, and prosobranch and pulmonate gastropods to colonize the land.

Derivatives

† prosobranchism n. Obsolete (in gastropod molluscs) the condition of having the mantle cavity and gills, etc., anterior to the heart.

ΚΠ

1854 T. H. Huxley in Abstr. Papers Royal Soc. 6 194 Prosobranchism and Opisthobranchism may occur as secondary results of either course of development.

This entry has been updated (OED Third Edition, June 2007; most recently modified version published online March 2022).

单词	prosobranch
释义	prosobranchn.adj. Brit. /ˈprɒsə(ʊ)braŋk/, U.S. /ˈprɑsəˌbræŋk/ Origin: A borrowing from French. Etymon: French Prosobranche. Etymology: < French Prosobranche (as plural, Prosobranches , H. Milne-Edwards 1848, in Ann. des sci. naturelles: zool. 9 109) < ancient Greek πρόσω forwards ( < προ- pro- prefix¹ + a suffix forming adverbs indicating direction) + βράγχια gills (see branchiae n.); compare -branch comb. form. Compare scientific Latin Prosobranchia , subclass name (1866 or earlier) and Prosobranchiata (see prosobranchiate adj.). With use as adjective compare earlier prosobranchiate adj. Zoology. A. n. A gastropod mollusc of the large subclass Prosobranchia, which comprises forms having the mantle cavity and gills, etc., anterior to the heart, and includes limpets, abalones, conches, and many terrestrial and aquatic snails. Cf. opisthobranch n., pulmonate n.The subclass Prosobranchia comprises the archaeogastropods, mesogastropods, and neogastropods; it has recently been replaced by a number of different subclasses (see quot. 2000). ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Gastropoda > [noun] > superorder Branchifera > order Prosobranchiata > member of prosobranch1851 prosobranchiate1880 1851 S. P. Woodward Man. Mollusca i. 50 The sexes are distinct in the most highly organized (or diœcious) mollusca... The prosobranchs pair. 1877 T. H. Huxley Man. Anat. Invertebrated Animals viii. 511 No Prosobranch is..symmetrical. 1958 J. E. Morton Molluscs ii. 28 In more active prosobranchs the head and foot are attached to the viscera by a narrow ‘waist’. 2000 C. Tudge Variety of Life ii. vii. 239 Now, the true limpets are placed in their own subclass, the Patellogastropoda... The rest of the old ‘prosobranchs’ are distributed among the other four of the new subclasses: Vetigastropoda, Neritopsina, Caenogastropoda, and Heterobranchia. B. adj. Belonging to or characteristic of the subclass Prosobranchia. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Gastropoda > [adjective] > of superorder Branchifera > belonging to order Prosobranchiata prosobranchiate1853 streptoneurous1883 prosobranch1886 1886 J. P. McMurrich in Amer. Naturalist (1887) 21 557 (title) A contribution to the embryology of the prosobranch gasteropods. 1924 E. G. Conklin in E. V. Cowdry Gen. Cytol. ix. 551 In the genesis of the ‘wormshaped’..spermatozoa of prosobranch gasteropods, the nucleus breaks up into chromatic masses. 1958 J. E. Morton Molluscs iv. 73 In primitive shelled opisthobranchs the ciliated filaments of the prosobranch gill are generally replaced by thicker fleshy folds. 2001 W. A. Shear & P. A. Selden in D. Edwards & P. G. Gensel Plants invade Land iii. 33 Salt marshes are providing a route for..crabs, and prosobranch and pulmonate gastropods to colonize the land. Derivatives † prosobranchism n. Obsolete (in gastropod molluscs) the condition of having the mantle cavity and gills, etc., anterior to the heart. ΚΠ 1854 T. H. Huxley in Abstr. Papers Royal Soc. 6 194 Prosobranchism and Opisthobranchism may occur as secondary results of either course of development. This entry has been updated (OED Third Edition, June 2007; most recently modified version published online March 2022). < n.adj.1851
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