GASTEROPODA. 173 



u ^l ^ T z " 



Fig. 98 



The Auricula frequent salt-marshes, damp hollows, and places overflowed 

 by the sea ; they were long regarded as marine animals, and their shells con- 

 fused with those of Tornatella and Ringicula. 



Auricula, Lamarck. 



Tijpe. A. Judaj. PI. XII. fig. 35. Etym. Auricula, a little ear. 



Sijii. Cassidula, Fer (not Lam.) Marinula (pepita) King. Geovula, Sw. 



Shell oblong, with thick, dark epidermis ; spire obtuse ; aperture long, 

 uaiTow, rounded in front, with 2 or 3 strong folds on the inner lip ; outer 

 lip expanded and thickened. 



Distr. 50 sp. Philippines, Celebes, Peejees, Australia, Peru. 



Fossil, 20 sp. Neocomian — . France. 



Fig. 99. A. auris-felis. (From Eyd. and Soul). 



A, JadcB has truncated tentacles ; the typical species are met with in 

 the brackish-water swamps of tropical islands, on the roots of mangroves, 

 and by small streams within the influence of the tide. One species has been 

 observed by Mr. Adams in nearly 2 fathoms water. 



Siih-genera, Polydonta, Fischer, P. scarabmis, PI. XII. fig. 36. (Sca- 

 rabus imbrium, Montf.) Shell oval, compressed; spire pointed many- 

 whirled, with lateral varices ; aperture toothed on both sides. Distr. 20 sp. 

 India, Borneo, Celebes, Pacific Ids. Inhabits moist spots in woods near the 

 sea, and is wholly terrestrial, feeding on decayed vegetables. {Adams) 



Pedipes (afra) Adans. Shell ovate, spirally striated, aperture denticu- 

 lated on both sides ; the animal loeps in walking, like truncaiella. Distr. 

 W. Indies, Africa, Philippines, Pacific Ids. Under stones on the sea-shore. 



Fossil, 5 sp. Eocene — . Brit. France. 



CoNOVULUS, Lamarck. 



Type, C. coniformis, Brug. PI. XIL fig. 37. ( = Voluta coffea, L. ?) 



Syn. Melampus, IMontf. Rhodostoma, Sw. 



Shell obtusely cone-shaped, smooth ; spire short, flat-whirled : aperture 

 long, narrow ; lip shai-p, denticulated within ; columella twisted in front ; 

 wall of the aperture with 1 or 2 spiral plaits. 



