WALKER, ARCTIC ECHINODERMS, ETC. 511 



O. alvida. Port Kennedy, 10 fathoms, lat. 72° N.,long. 94° W. 



O. echinulata. Port Kennedy, 10 fathoms. 



O. fasiculata. Port Kennedy ; Crimson Cliffs. 



Ophiocoma, sp. n. Port Kennedy, 10 fathoms. 



O. nigra. Crimson Cliffs. 



Uraster violaceus (?), Young. Port Kennedy, 10 fathoms ; 



Melville Bay, 80 fathoms ?. 

 Echinus neglectus. Godhavn, 15 fathoms; Melville Bay, 



100 fathoms; Port Kennedy, 8 fathoms. 

 Solaster endeca. Port Kennedy, 10 fathoms. 

 S. papposus. Reefkol, 20 fathoms. 



II. Cirripedia. 



Balanus porcatus, DC. Godhavn ; Fiskernaes ; Reefkol ; 



Port Kennedy. 

 B. scoticus. Godhavn. 



III. Anthozoa. 



A^dSatt'^''^''}^^'^""^^^'' Godhavn; Melville Bay. 



LXX. — MoLLUSCA from West Greenland and the Parry 

 Islands. From the Appendix to Dr. P. C. Suther- 

 land's Journal of Captain Penny's Voyage, &c., 1852, 

 pp. cci. ccii. 



The Mollusca of the Arctic Regions are enumerated in the 

 Revised Catalogue by Dr. Morch, above, pp. 124-135 ; and most, 

 if not all, are described in Mr. J. Gwyn Jeffreys' " British Con- 

 " chology, or an account of the Mollusca v^hich nov^ inhabit the 

 <' British Isles and the suri'ounding seas," vol. i — ^v. ; 1862-69, 8vo. 



Conchifera. 



Modiola (Lanistina) discors. 



Astarte arctica. 



A. Spitzbergensis. 



Nucula (Yoldia) arctica. 



N. (Leda) fluviatilis. 



N. radiata. 



N. cordata. 



Hiatella arctica. 



H. minuta. 



Tellina (Psammobia) fusca. 



T. calcarea. 



Cardium (Aphrodite) Groenlandicum. 



Saxicava rugosa. 



Mya truncata. 



Pandora glacialis. 



Montacuta substriata. 



Abundant ; Assis- 

 tance Bay and the 

 shores of Barrow^ 

 Strait 7-20 ; fa- 

 thoms. 



