304 



MANUAL OF THE MOLLITSCA. 



AuBiCTTLA, Lamarck. 



Type, A. JiidfB. PL XII., Fig. 35. 



Etymology, Auricula, a little ear. 



Synonyms, Cassidula, Fer. (not Lam.). Marinula (pepita) 

 King. Geoviila, Sw. 



Shell oblong, with thick, dark epideiTnis ; spire obtuse ; aper- 

 ture long, narrow, rounded in front, ■with. 2 or 3 strong folds on 

 the inner lip ; outer lip expanded and thickened. 



Distribution, 94 species. Philippines, Celebes, Feejees, Aus- 

 tralia, Peru. 



Fossil, 28 species. ? Neocomian — . France. 



Fig. 132. A. auris-felis. (From Eyd. and Soul.) 



A . JiidcB has truncated tentacles ; the typical species are met 

 with in the brackish-water swamps of tropical islands, on the 

 roots of mangroyes, and by small streams within the influ- 

 ence of the tide. One sj)ecies has been obseryed by Mr. Adams 

 in nearly 2 fathoms water. 



Si(l)-genera, Polydonta, Fischer, P. scarahceus, PI. XII., Fig. 

 36. (Scarabus imbrium, Montfort). 



Shell oyal, compressed; spire pointed, many-whorled, with 

 lateral yarices ; aperture toothed on both sides. 



Distribution, 34 species. India, Borneo, Celebes, Pacific 

 Islands. Inhabits moist sjDots in woods near the sea, and is 

 wholly terrestrial, feeding on decayed vegetables. (Adams.) 

 1 Tertiary species. 



Pedipes (afra), Adans. 



Shell oyate, spirally striated, aperture denticulated on both 

 sides ; the animal loops in walking, like truncatella. 



Distribution, West Indies, Africa, Philippines, Pacific Islands. 

 Under stones on the sea- shore. 



Fossil, 5 species. Eocene — . Britain, France. 



CoxoYTTLUS, Lamarck. 



Type, C. coniformis, Brug. PI. XII., Fig. 37. (= Yoluta 

 cofi'ea, L. ?) 

 SynonymSy Melampus, Montfort. Phodostoma, Sw 



