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질의: planorbidae결과: 3번째/50
Image of: Gyraulus
제목: Image of: Gyraulus
출처: http://animaldiversity.ummz.umich.edu/site/resou...
062.rjb1.jpg
해상도: 319x240 파일크기: 8659 Bytes 등록시간: 2008:05:13 13:43:34

Image of: Gyraulus


Image of: Gyraulus

ADW: 062.rjb1.jpg


Caption
Gyraulus
.The
Planorbidae
is a freshwater snail family of the subclass
Pulmonata
. These snails, although aquatic, are lung breathers. Gills are lacking; instead there is a large pulmonary sac for gaseous exchange. In the snail shown here, nearly half of the last whorl is occupied by the lung, clearly visible as an air-filled space. The
Planorbidae

planorbidae
3/50
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