' PLATE CLXVII. 



NERITA INTRICATA. 



INTRICATE-LINED NERIT. 

 GENERIC CHARACTER. 



Animal Umax. Shell univalve, spiral, gibbous, flattlsh beneath : 

 aperture semiorbicular, or semilunar j pillar lip, transversely trun- 

 cated, and flattifti. 



SPECIFIC CHARACTER. 



Shell smooth : spire somewhat pointed : umbilicus large, nearly 

 heart shaped, widi a small carinated lobe. 



Nerita Intricata : testa laevi : spira submucronata, umbilico 

 magno subcordato ; lobo parvo carinato. 



Nerita Canrena var ? 



Tliat this shell :s not the young of Nerita Glaucina, as some have 

 suspected, is evident from the depth and structure of the umbilicus, 

 which in the former is almost completely closed by the pillar lip. 

 It is rather allied to Nerita Canrena, which has a gibbous bifid umbi- 

 licus ; and may possibly indeed prove to le nothing more than a va- 



VOL. V. o 



