132 MORCH OX THE MOLLUSCA OF GREENLAND. 



184. A. (Tridonta, subg.) semiciilcata, Leach, Ross's Voy., 

 App., 175 ; non Moll. 



Crassina arctica, Gray, Parry's Voy. Moll. Venus borealis, 

 Ch., VII., f. 412. Crassina corrugata, Brown. 

 18o. A. (Nicania, subg.) striata, Leach, 1819, Ross's Voy., 

 App., 170. Gray, Beechy's Voy., t. 44, f. 9. Moll. 

 A. multicostata, Macgill. Phil. 

 (186.) var. A. globosa, Moll. 



187. A. Banksii, Leach. Moll. Beechy's Voy., t. 44, f. 10. 

 *188. A. pulchella, Jonas. Phil., Abbild., X., p. 60, 1. 1, f. 12. 

 A. Warhami. Hancock ? 



189. Cyprina islandica, (Venus) L. non Fabr. (Dr. Rudolph.) 



1 90. Cardium ciliatum, Fabr. 



C. islandicum, Ch. C. arcticura, Sow., 111., f. 26. 



191. C. elegantulum. Beck, Moller. Sars. 



192. C. (Serripes, subg.) groenlandicuni, Ch. 



Venus islandica, Fabr. non L. (Gr. Ipiksaiinak.) 

 (193.) var. borealis. Reeve ; striated anteriorly and posteriorly. 



194. Area pectunculoides, Scacchi. (Wallich.) 



195. Nucula inflata, Hancock, Ann. 



N. tenuis, Gray. Moll. 



196. N. nitida. Sow., Illust. Hanley. 



197. N. delphinodonta, Mighels & Adams, Boston Journ. 

 iv., 40. Gould. 



N. corticata, Holb. & Moll. 



198. Nuculana buccata, Stp. & Moll. Sarg. 



N. Jacksonii (Gould) differt umbonum sculptura. 



199. N. pernula, Miill. 



Area Mai-tinii, Bolt., Mus. Bolt. 

 Leda macilenta, Stp. & Moll. 

 Nucula rostrata. Mart. Lam. 

 N. fluviatilis, Sow., Gen. 



200. N. minuta, (Area) Miill. Fabr. Ch. Moll. (Gr. Imen- 

 ni/iffoak.) 



N. parva, Sow., Illustr. 

 (201.) var. grandis. Leda complanata, Moll. 



202. N. (Portlandia, subg.) arctica. Gray, Parry's Voy. 

 Wood, Suppl. t. 6., 



Yoldia portlandica. Woodward, non Hitch. 

 Nucula truncata, Brown, 111., xxv.,f. 19. 



203. N. pygm£ea, Miinster. Loven. Forbes & Hanley. 



var. Nucula lenticula, Moll. 



204. Yoldia limatula. Say. Torell. 



205. Y. hyperborea, Loven. 



206. Y. thraciaeformis, Storer. (Fiskernaesset and Sukker- 

 toppen, at 60 to 70 fathoms.) 



Yoldia angularis, Moll. 



207. Modiolaria nigra. Gray, Parry's Voy., 1824. Wood. 

 Ch., f. 767. 



Mytilus discors, var. suevica, Fabr., Vid. Selsk, 1788. 

 M. discrepans, Mont., Suppl. Leach. Moller. 

 Modiola compressa, Menke. 



Modiolaria striatula, Beck, Voy. de la Recherche, non L., 

 Mantiss. 



