樹螺科（學名：），又名螺科、䗉蝸牛科或無臍蝸牛科，是軟體動物門腹足綱之下的一個科，舊屬蜑螺總科（Neritacea），今獨立出來成為樹螺總科之下唯一的一個科。本科的物種在其殼口均有厣可封蓋其殼。皆為陸生。

雖然本科物種在外表跟陸地上呼吸空氣的蝸牛很相似，但其實在分類學來說，兩者的分歧頗大。

分佈
本科物種的分佈比較奇怪：牠們生活於熱帶及亞熱帶地區，但只限於加勒比海的島嶼及部份印度太平洋區及太平洋的島嶼，也在亞洲及澳大利亞大陸的邊緣地區生活。

分類

多樣性
本科估算約有770-1400個物種。

2005年分類
根據2005年《布歇特和洛克羅伊的腹足類分類》的分類，本科由蜑螺總科之下轉為成立獨立的一個總科。本科由六個亞科組成，分別如下：
 樹螺亞科 Helicininae Férussac, 1822：即 Olygyridae Gray, 1847 或 Bourcierinae Paetel, 1890
 Ceratodiscinae Pilsbry, 1927
 † Dimorphoptychiinae Wenz, 1938
 Hendersoniinae H. B. Baker, 1926
 Stoastomatinae C. B. Adams, 1849
 Vianinae H. B. Baker, 1922

屬
本科的屬計有：

樹螺亞科
，MolluscaBase紀錄樹螺亞科（Helicininae）包括下列22個屬：
 Genus Alcadia Gray, 1840
 Genus Analcadia A.J. Wagner, 1907
 Genus Aphanoconia A.J. Wagner, 1905
 Genus Bourciera L. Pfeiffer, 1852
 Genus Ceochasma F.G. Thompson, 1968
 Genus Ceratopoma Möllendorff, 1893
 Genus Emoda H. Adams & A. Adams, 1856
 Genus Glyptemoda Clench & Aguayo, 1950
 樹螺屬 Helicina Lamarck, 1799：模式屬。
 Genus Hemipoma A.J. Wagner, 1905
 Genus Kosmetopoma A.J. Wagner, 1905
 Genus Negopenia Iredale, 1943
 Genus Nesiocina Richling & Bouchet, 2013
 Genus Ogasawarana A.J. Wagner, 1905
 Genus Orobophana A.J. Wagner, 1905
 Genus Palaeohelicina A.J. Wagner, 1905
 Genus Pecoviana Iredale, 1943
 Genus Pleuropoma Möllendorff, 1893
 Genus Schasicheila Shuttleworth, 1852
 Genus Stoastomops H. B. Baker, 1924
 Genus Sturanya A.J. Wagner, 1905
 Genus Sulfurina Möllendorff, 1893

Ceratodiscinae
 Ceratodiscus 	Simpson & Henderson, 1901 - type  genus of the subfamily Ceratodiscinae

Dimorphoptychiinae
 † Dimorphoptychia Sandberger, 1871 - type  genus of the subfamily Dimorphoptychiinae

Hendersoniinae
 Hendersonia A. J. Wagner, 1905 - type  genus of the subfamily Hendersoniinae
 Waldemaria Wagner, 1905

Stoastomatinae
 Stoastoma C. B. Adams, 1849 - type  genus of the subfamily Stoastomatinae

Vianinae
 Calidviana Baker, 1954
 Calybium Morelet, 1891
 Eutrochatella Fischer, 1885
土䗉蝸牛屬 Geophorus 
 Heudeia Crosse, 1885
 Pseudotrochatella Nevill, 1881
 Pyrgodomus Fischer & Crosse, 1893
 Viana H. Adams & A. Adams, 1856：本亞科的模式屬。

Subfamily ?
 Emoda Adams, 1856
 Glyptemoda Clench & Aguayo, 1950
 Priotrochatella Fischer, 1893
 Semitrochatella Aguayo & Jaume, 1958
 Sturanyella Pilsbry & Cooke, 1934
 Troschelviana Baker, 1922
 Ustronia Kobelt, 1908

參考文獻

延伸閱讀
 Richling I. (2001). "New species of Helicinidae from Costa Rica (Gastropoda: Neritopsina)". Schriften zur Malakozoologie 17: 1-8. Cismar.
 Richling I. (2004). "Classification of the Helicinidae: Review of Morphological Characteristics Based on a Revision of the Costa Rican Species and Application to the Arrangement of the Central American Mainland Taxa (Mollusca: Gastropoda: Neritopsina)". Malacologica 45(2): 195-440.
 Richling I. (2004). "Coloration in Helicinidae (Mollusca: Gastropoda: Neritopsina)". Malacologia 46(1): 217-224.
 Richling I. (2005). "Biographical remarks on Dr. Antoni Józef Wagner and the collection of Helicinidae in the Museum and Institute of Zoology in Warszawa". Folia Malacologica 13(4): 197-206.
 Richling I. & Glaubrecht M. (2008). "The types of Neotropical Helicinidae (Mollusca, Gastropoda, Neritopsina) in the Malacological Collection of the Museum für Naturkunde Berlin: an annotated catalogue, with emphasis on Cuban land snails". Zoosystematics and Evolution 84(2): 265-310. .
 Richling I. (2009). "The Radiation of the Helicinidae in New Caledonia (Mollusca: Gastropoda: Neritopsina) including zoogeographical considerations". In: Grandcolas P. (ed.). "Zoologia Neocaledonica 7. Biodiversity studies in New Caledonia". Mémoires du Muséum national d'Histoire naturelle 198: 247-372. Paris. abstract 

species specific reading:
 Richling I., Franke S., Fernánndez V. A. & Sigaretta V., S. (2007). "New data on the micro-land snails Eutrochatella (Microviana) spinopoma Aguayo 1943 and Eutrochatella (Microviana) holguinensis Aguayo 1932 (Neritopsina: Helicinidae) in the province of Holguín, eastern Cuba". Schriften zur Malakozoologie 23: 19-24. Cismar.

外部連結

   Richling I. Forschung an Helicinidae 
 The Land Snail Family Helicinidae 
 The Costa Rican Helicinidae 
 Newly introduced Taxa of Helicinidae  by Ira Richling