PLATE XX. 



F I G. I. I. 

 NERITA GLAUCINA. 



CHAIN NERIT. 

 GENERIC CHARACTER. 



Globose. Aperture semiorbicular. 



SPECIFIC CHARACTER 



AND 



SYNONYMS. 



Umbilicated, glossy. Spires swelled, obtuse. Umbilicus large and 

 deep wi^h the inner lip greatly spread on the body wreath. A chain 

 of short brown marks along the spires. 



Nerita Glaucina : testa umbilicata laevi, spira obtusiuscula, um- 

 bilico semiciauso : labio gibbo dicolore. Linn. 

 Syst.Nat. p. 1251. No. 716. 

 Nerita Glaucina. Livid. Penn. Br. Zool. No. 141. tab. 87. 



fig. 141. 

 Cochlea Catena. Chain Nerit. C. Umbilicata albo rufescens fasciis 

 maculatis, maxime ad imos orbes distincta. Da 

 Costa, Br. Conch, p. 83. sp. 45. 



This Shell is not uncommon on the shores of the Essex and Kentish 

 coasts ; on the sandy shores of Lincolnshire, Dorsetshire, Devonshire, 

 VOL. L G 



