INTRODUCTION S i 



'M. bif meatus Conrad' Melvill & Standen, 19 14. 

 'M. ovalis Lamarck' Melvill & Standen, 1907. 



Aulacomya magellanica Lamarck, 1819; Melvill & Standen, 1907, 1914. 

 Hormomya blakeana Melvill & Standen, 1914 (T.). 

 Anomia sp. Melvill & Standen, 19 14 as 'ephippium' Linn. 

 Gaimardia bennetti Preston, 1913 (T.). 

 G. exilis (H. & A. Adams, 1853); Melvill & Standen, 1914. 

 G. gemma (Cooper & Preston, 1910) (T.). 



G. mesembrina Melvill & Standen, 1907 (T.) ( = G. pieturata Cooper & Preston, 1910) (T.). 

 G. trapesina (Lamarck, 1822); Melvill & Standen, 1914. 

 Cyamium antarcticum Philippi, 1845; Melvill & Standen, 1907. 

 C. bennetti Preston, 1912 (T.). 

 C. copiosum Preston, 1913 (T.). 

 C. cuneatum Preston, 19 13 (T.). 

 C. exasperation Preston, 191 2 (T.). 



C . falklandicum Melvill & Standen, 1898 (T.); Melvill & Standen, 1907, 1912, 1914. 

 C. iridescens Cooper & Preston, 1910 (T.). 

 C. piscium Preston, 1912 (T.). 



C. stanleyense Preston, 1913 (T.). 



Cyamionema decoratum Melvill & Standen, 1914 (T.). 



Astarte longirostra d'Orbigny (T.). 



Carditella naviformis Reeve, 1843; Melvill & Standen, 1914. 



Lasaea consanguinea Smith, 1879; Melvill & Standen, 1907, 1914. 



Lasaea sp. Melvill & Standen, 1914 as ' miliar is' Philippi. 



' Kellia cycladiformis Deshayes, 1851'; Melvill & Standen, 1907 1912, 1914. 



Davisia bennetti Preston, 1912 (T.). 



D. cobbi Cooper & Preston, 1910 (T.); Melvill & Standen 1914. 

 D. concentrica Preston, 1912 (T.). 



Malvinasia arthuri Cooper & Preston, 1910 (T.). 



?Scacchia plenilunium Melvill & Standen, 1907 (T.). 



Thyasira falklandicus (Smith, 1885); Melvill & Standen, 1907, 1914. 



Gomphina (Aeolus) foveolata (Cooper & Preston, 1910) (T.); Melvill & Standen, 1914. 



Samarangia exalbida Chemnitz, 1788; Melvill & Standen, 1907. 



Darina solenoides King & Broderip, 1830-31; Melvill & Standen, 1914. 



Cardium delicatulum Smith, 191 5 (T.). 



Lyonsia cuneata Gray, Melvill & Standen, 1907, 1914. 



Mytilimeria falklandica Preston, 19 13 (T.). 



Laternula elliptica (King & Broderip, 1832) (= Thracia antarctica Melvill & Standen, 1898 (T.) = Mya antarctica 



Melvill & Standen, 1914 (T.)). 

 Solen macha Molina, 1789; Melvill & Standen, 1914. 



Hiatella antarctica (Philippi, 1845); Melvill & Standen, 1914; Preston, 1913 as Saxicava subantarctica Preston. 

 Bankia odhneri Roch, 193 1 (T.). 

 Cuspidaria (Cardiomya) simillima Smith, 1915. 



GASTROPODA 



*Patelloida ceciliana (Orbigny, 1841) (T.); Melvill & Standen, 1907, 1914. 



P. ceciliana magellanica (Strebel, 1907); Strebel, 1908; Melvill & Standen, 1914. 



'Acmaea inquilinus Preston, 1913' (T.). 



' A. perconica Preston, 1913' (T.). 



Scurria scurra (Lesson, 1830); Melvill & Standen, 19 14; Preston, 1913 as var. charon Preston. 



' Nacella falklandica Preston, 1913 ' (T.). 



N. mytilina (Helbling, 1779); Melvill & Standen, 1914. 



*Patinigera aenea (Martyn, 1784); Melvill & Standen as 'deaurata Gmel.', 1907, 1914. 



