182. 
183. 
186. 
189. 
190. 
192 
93 
N. nitida Sow. Illustr. Hanl. Thorpe Brit. Mar. Conch. 
N. delphinodonta Michel & Adams. Bost. Journ. Gould. 
N. corticata Holb. & Møll. 
Gen. 84. Nuculana Link. (Leda Schum.) 
. N. buccata Stp. & Møll. Sars. 
N. Jacksonii Gould. differt umbonium sculptura. 
. N. pernula Miill. 
Arca Martinii Bolt. Mus. Bolt. 
Leda macilenta Stp. & Møll. 
Nucula rostrata Mart. Lam. 
Nucula fiuviatilis Sow. 
N. minuta (Arca) Mill Fbr. Ch. Møll. (Gr. Imenningoak.) 
Nucula parva Sow. Illustrations. 
. var. grandis. Leda' complanata Møll. 
Sbg. Portlandia aut? 
. N. glacialis (Arca) Gray. Parry. Voy. Wood. Supp. t. 6. 
Yoldia Portlandica Woodward non Hitsch. 
Nucula truncata Brown. Ill. XXV. f. 19. 
Yoldia glacialis Gray. Cat. Brit. Moll. p. 161. 
Gen. 82: Yoldia Møll. (Lembulus Leach. Bk.) 
Y. arctica (Nucula) Gray. Parry. Voy. 1824 p. 241. 
Lembulus lævigatus ,,L.''” Bk. 1847 non Gm. 
Y. thraciæformis Storer. 
(Fiskernæsset og Sukkertoppen 60-——70 Favne.) 
Yoldia angularis Møll, 
. Y. pygmæa Miinster, Lovén. Forbes & Hanl. 
var. Nucula lenticula Møll, 
Gen. 83. Modiolaria Bk. 
. M. nigra Gray. Parry. Voy. 1824. Wood. Ch. f. 767. 
Mytilus discors var. svecicus Fabr. Vid, Selsk. 1788, 
