1881.] 'lightning' AND 'porcupine' EXPEDITIONS. 705 



W 2. DiPLODONTA TRIGONULA, BrOllll. 



Diplodonta trigonula, Bronn, Ital. Tertiargeb. (in Leonhard's 

 Zeitscbr. f. Mineral, p. 485), p. 96, t. 3. f. 2; Philippi, En, Moll. 

 Sic. t. iv. f. 6 (as D. apicalis). 



'Porcupine' Exp. 1870: Atl. St. Vigo B., C. Sagres, Tangier B. 

 (var. intermedia) ; Med., Adventure Bank. 



Distribution. Mediterranean, Adriatic, ^gean, Canaries, and Ma- 

 deira; 4-120 fms. 



Fossil. Miocene : Calabria. Upper Tertiaries : Coralline, Red, 

 and Mammaliferous Crag, Belgium, Austrian Empire, Switzerland, 

 Touraine, Italy, and Rhodes. Post-tertiary : Calabria. 



Syn. and Vars. D. astartea, Nyst ; Tellina trigona, Scacchi; B. 

 apicalis, Philippi ; D. intermedia, Biondi. 



Variable in size and comparative breadth. 



Family X. Carditid^. 

 t^' 1. Cardita aculeata, Poli. 



Chama aculeata, Poli, Test. utr. Sic. ii. t. xxiii. f. 23. 



'Porcupine' Exp. 1870: Atl. St. C. Sagres, 36, Tangier B.; 

 Med. Capo de Gata, 50, Benzert Road, Basel Amoush, Adventure 

 Bank, off Rinaldo's Chair. 



Distribution. Mediterranean, Adriatic, jEgean ; 20-150 fms. 



Fossil. Pliocene : Erance, Italy, Rhodes. Post-tertiary : Calabria. 



Several useless synonyms of Lamarck, Risso, Requien, and Reeve. 



t^ 2. Cardita calyculata, Linne. 



Chama calyculata, L.S.N, p. 1138; Poli, Test. utr. Sic. ii. 

 t. xxxii. f. 7-9. 



' Porcupine' Exp. 1870 : Atl. St. Cadiz Harbour; Med., Benzert 

 Road. 



Distribution. Mediterranean, Adriatic, iEgean, Syria, Mogador, 

 Madeira, Senegal, Canaries, Azores ; 0-120 fms. 



Fossil. Miocene and Upper Tertiaries: S.W. and S. France, 

 Austria, Italy, Rhodes, Cyprus, Madeira. 



A few synonyms. 



</ 3. Cardita corbis, Philippi. 



Cardita corbis, Phil. En. Moll. Sic. i. p. 55, t. iv. f. 19. 



' Porcupine ' Exp. 1870: Atl. St. 26 ; Med. 50,55, Adventure 

 Bank. 



Distribution. Bay of Biscay {Be Folin and ' Travailleur ' Exp.), 

 throughout the Mediterranean and Adriatic, Canaries; 6-552 fms. 



Fossil. Upper Tertiaries: Coralline, Red, and Norwich Crags, 

 Belgium, Touraine, Italy. Post-tertiary : Hopton, Calabria. 



C. mimita of Scacchi, and C. nuculina of Dujardin fide Wein- 

 kauff. 



