919- Patella vulgata ? (Linn.), Lofoten Is., Norway, 

 Spain. 



920. Patella conspicua (Phil.), Gaboon, Guinea. 

 SECTION SCUTELLASTRA (H. & A. AD.) 



921. Patella neglecta (Gray), King George's Sound, 

 Mistaken Is., and Swan River, Austr. 



922. Patella barbara (Linn.), ? 



923. Patella morbida (Reeve.), C. of G. H. 



924. Patella cochlear (Born.), C. of G. H. 



925. Patella granatina (Linn.), C. of G. H. 

 SECTION ANCISTROMESUS (DOLL.) 



926. Patella mexicana (Brod. and Sowb.) 

 SUB-GENUS HELCION (MONTF.) 



Section Helcion. 



927. Patella pectinata (Born.), C. of G. H. 

 SECTION PATINA (LEACH) [GRAY] 



928. Patella pellucida (Linn.), Lofoten, Norway, Cas- 

 caes Bay, Portugal. 



SUB-FAMILY NACELLINAE (THIELE) 

 Genus Nacella (Schum.), Section Nacella (Schum.) 



929. Nacella mytilina (Helbling) Var :- hyalina (Phil.), 

 Sts. of Magellan, Kerguelen Is. 



SECTION PATINELLA (DOLL.) 



930. Nacella aenea (Martyn), Sts. of Magellan. 



931. Nacella aenea Var :-deaurata (Gmel.), Sts. of Ma- 

 gellan. 



932. Nacella aenea Var :-Magellanica (Gmel.), Sts. of 

 Magellan. 



GENUS HELCIONISCUS (DOLL.) 



933. Hclcioniscus artieulatus (Reeve), Is. of Ticao, 

 Phil. 



934. Helcioniscus torenma (Reeve), Nagasaki, Tokio, 

 etc., Jap., China. 



935. Helcioniscus radians (Gmel.), New Zealand, Austr. 



ORDER POLYPLACOPHORA 



936-940. Chiton sp. (?) 



