There are approximately 23 species and subspecies in this genus: A. aculeata · A. antarctica · A. cicada · A. costata · A. crenata · A. dentata · A. fusca · A. herbicola · A. hexenes · A. hyalina · A. lynceus · A. major · A. marsupialis · A. polypoda · A. polystyla · A. pulcherrima · A. quadrilineata (Buchanan's Bluetail Mullet) · A. rotunda · A. sedigita · A. sulcata · A. terranovae · A. turita · A. turrita
There are approximately 43 species and subspecies in this genus: C. aprica (Diurnal Ambersnail) · C. arenaria (Sandbowl Snail) · C. avara · C. avera · C. baldwini · C. crocata · C. disseminata · C. elastica · C. exile (Pleistocene Catinella) · C. explanata · C. gabbi (Riblet Ambersnail) · C. gabbii (Riblet Ambersnail) · C. gelida · C. hubrichti (Snowhill Ambersnail) · C. melanochlora · C. modesta · C. nigro-olivacea · C. nigroolivacea · C. oklahomarum (Detritus Ambersnail) · C. olivacea · C. olivacea f. carbonicola · C. olivacea f. olivacea · C. olivacea f. pilosa · C. oostoma · C. oregonensis · C. parallela (Classification Uncertain) · C. paropsis · C. patula · C. pinicola (Pinewoods Ambersnail) · C. protracta (Classification Uncertain) · C. pugilator (Weedpatch Ambersnail) · C. putamen · C. rehderi (Chrome Ambersnail) · C. rotundata · C. rubida · C. stretchiana (Sierra Ambersnail) · C. subgen. · C. texana (Classification Uncertain) · C. tuberculata · C. vagans (Mudbank Ambersnail) · C. vermeta (Suboval Ambersnail) · C. waccamawensis (Classification Uncertain) · C. wandae (Slope Ambersnail)
Accessed through GBIF Data Portal March 19, 2008:
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