8z DISCOVERY REPORTS 



Patinigera aenea (Martyn) 



Patella aenea Martyn, 1784, pi. 17. 



Patella deaurata Gmelin, 1791, p. 3719. 



Patella varicosa Reeve, 1854, fig. 21. 



Nacella strigatella Rochebrune & Mabille, 1885, p. no. 



Nacella aenea and aenea deaurata, Pilsbry, 1891, pp. 117, 118, pi. 15, figs. 5, 6; pi. 45, figs. 22, 23; pi. 46, 



figs. 28-36. 

 Patinella deaurata Strebel, 1908, p. 80. 

 Helcioniscus bennetti Preston, 191 3, p. 221, pi. 4, fig. 7. 



Strebel's Patinella delicatissima (1907, p. 145 and 1908, pi. 1, figs 75, 75a) is a benthic form of the 

 above. 



Type locality. Strait of Magellan. 

 North-east coast, Tierra del Fuego (R. T. Reynolds, 1934); Falkland Is. (VV. R. le. B. Tomlin & A. G. Bennett). 



Range. Tierra del Fuego, Strait of Magellan and Falkland Is. 



This species is larger and more elongate-ovate than magellanica and has the strong radial ribs 

 prominently scaled by the concentric growth lines. Thin shells with a near anterior apex were sub- 

 specifically separated as deaurata by Pilsbry (1891), but this does not seem warranted. If, however, 

 the move to ban Martyn's names becomes generally accepted, then Gmelin's deaurata must come into 

 use for the species. 



Length 33-5 mm.; breadth 23-0 mm.; height io-o mm. (Falkland Islands). 

 Length 55-5 mm.; breadth 38-0 mm.; height 23-0 mm. (Falkland Islands). 

 Length 60-5 mm.; breadth 43-0 mm.; height 25-5 mm. (Falkland Islands). 

 Length 70-0 mm.; breadth 46-0 mm.; height 32-0 mm. (Tierra del Fuego). 



Patinigera delicatissima (Strebel) 



Patinella delicatissima Strebel, 1907, p. 145, pi. 5, figs. 71, 72. 

 Patinella delicatissima Strebel, 1908, pi. 1, figs. 75, 75 a. 

 Patella delicatissima Melvill & Standen, 1914, p. 114. 



Type locality. Strait of Magellan, 20-30 fathoms. 



St. 51. Off Eddystone Rock, East Falkland Is., from 7 miles N 50 E to 7-6 miles N 63 E of Eddystone Rock, 



4 May 1926, 115 m. 

 St. 55. Entrance to Port Stanley, East Falkland Is., 2 cables S 24 E of Navy Point, 16 May 1926, 10-16 m. 

 St. 56. Sparrow Cove, Port William, East Falkland Is., ij cables N 50 E of Sparrow Point, 16 May 1926, 



ioi-16 m. 



This is a small, thin species of low profile with delicately squamose ribs. It is apparently constant 

 and not merely a benthic form of aenea. Strebel (1907) recorded it from Berkeley Sound, 16 m., and Port 

 Louis, 7 m., Falkland Islands, and Melvill & Standen (1907) from Rapid Point and Roy Cove, West 

 Falkland Islands, at low water. 



Patinigera polaris (Hombron & Jacquinot) 



Patella polar is Hombron & Jacquinot, 1841, p. 191. 



Patella polaris Martens & Pfeffer, 1886, p. 101, pi. 2, figs. n-13. 



Nacella polaris Pilsbry, 1891, p. 120, pi. 49, figs. 21-27. 



Patinella polaris Strebel, 1908, p. 81, pi. 5, fig. 77. 



Nacella (Patinella) polaris Lamy, 1911a, p. 15. 



Nacella (Patinigera) polaris L. David, 1934, nos. 2-3, p. 127. 



