MORCH ON THE MOLLUSOA OF GREENLAND. 181 



162. Cyrtodaria siliqua, Spgl. (Fossil, Dr. Rink.) 



Glycimeris incrassata, Lam. 



163. C. Kurriana, Dkr. About 2 inches long ; pale-brown 

 in colour. (Found at low water near Jacobshavn ; Dr. 

 PfafF.) 



164. Saxicava arctica, (Mya) L. Fabr. (Gr. Imennek.) 



Mya byssifera, Fabr. Saxicava grcenlandica, Pot. & Mich. S. 

 pholadis, L. Gray, Parry's Voy. 



165. Panomyanorvegica, (Mya) Spgl. Woodward. (Fossil, 

 Dr. Rink.) 



Panopsea Spengleri, Valenc. 



166. Lyonsia arenosa, (Pandorina) Moll. 



Lyonsia gibbosa, Hancock, Ann., XVIII. t. 5, f. 11, 12. 



167. Thracia myopsis, Bk. Moll. 



Thracia Couthouyi, Stimpson. 



168. Th. septentrionalis, JefFr.Th. truncata, Mighels & Adams, 

 Boston Journ., 1842, t. 4, f. 1 (sed margine dorsali 

 magis declivi.) Long. 27 mm.; height 19 mm. (Eight 

 Danish miles off land outside the Sondre Stromfjord, at 

 60 fathoms, Moller.) 



169. Neaera cuspidata, Olivi. (Wallich.) 



170. Tellina (Macoma, subg.) calcarea, Ch. 



Tellina proxima, Smith. 



171. T. moesta, Desh. Perhaps only a variety of T. calcarea, 

 influenced by fresh water. (Arsut, L. Barrett.) 



172. T. crassula, Desh. Small, triangular. Known from 

 Greenland by a few specimens only. 



173. T. tenera (Macoma, Leach), Ross's Voyage, ii., 1819, 

 p. 175 ; Thomson's Annals Philos., xiv., 1819, p. 204. 



T. grcenlandica, Bk. Gould, p. 66. Loven, No. 299. T. 

 Fabricii, Hanley. Sow. Thes., f. 112. Venus fragilis, Fabr., 

 No. 414. 



174. Venus fluctuosa, Gould, p. 57, f. 50. (Narsalik ; Hol-b.) 



175. Pisidium Steenbuchii, (Cyclas) Moll. (In a pond near 

 Baals River.) 



176. Thyasira Gouldii, Phil., M. Z., 1845, p. 74. 



Cryptodon flexuosum, Moll. Gould, f. 52. 



177. Montacuta elevata, Stimpson. 



M. bideutata, Gould, p. 59, non Mont, 



178. M. Moelleri, Holb. 



179. M. Davvsoni, JefFr., Brit. Conch., ii., 216. 



180. Kellia planulata, Stimpson. 



K. rubra, Gould, p. 60, f. 33, non Mont. 



181. Turtonia minuta, (Venus) Fabr. (Gr. Ipiksaunatak.) 



Chione minuta, Desh., Cat. Ven., No. 121. 



182. Astarte compressa, (Venus) L., Mantis, plant, non Mtg. 



Venus borealis, Ch.- VII., f. 413, 414. Astarte elliptica. Brown. 

 A. semisulcata, Gray. Moll. Phil., Abbild., non Leach. 



183. A. crebricostata, McAndrew & Forbes, Ann., 1847, XIX., 

 p. 98, t. 9, f. 4. 



A. crenata, Gray (?), Parry's Voy., 1824 



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