440 ]\Ir. J. Gwyn Jeffreys on Nonoegum MoUitsca. 



The young only were dredged ; and these had probably been 



removed from the shore by the waves or tide, and carried 



out into the fiord. 

 Mytilus PHASEOLiNUS, Pliilippi. B. C. ii. 118, and v. 171, 



pi. 27. f. 5. C. 15-120 f.; P. 30-110 f. 

 MoDiOLARiA MAiwroRATA, Forbes. B. C. ii. 122, and v. 171, 



pi. 28. f. 1. C. 10-60 f. ; P. 15-80 f. 

 NUCULA SULCATA, Bronn. B. C. ii. 141, and v. 172, pi. 29. 



f. 1. C. 15-100 f.; P. 15-208 f. 

 N. NUCLEUS, L. B. C. ii. 143, and v. 172, pi. 29. f. 2. C. 5- 



60 f.; P. 10-1180 f. 

 N. TUMIDULA, 'Ms\m^ = N. 2)i()nUa.) Loven, MS. {N. nucJcin^,^, 



in Ind. Moll. Seand.). C. 40-230 f. ; P. 420-1476 f. It 



seems that I was mistaken in referring Malm's species to a 



variety of N. nucleus , although his description may apply as 



well to that variety as to the present species. iV. ^roxima 



of Say is allied to it. 

 *N. DELPHiNODONTA, Mighcls & Adams. C. 60 f. ; P. 290- 



345 f. Gulf of St. Lawrence to Casco Bay, Maine. Mr. 



M' Andrew dredged it in upjier Norway. 

 Leda ri'GM.EA, Miinster. B. C. ii. 154, and v. 173, pi. 29. f.5. 



C. 10-100 f.; P. 40-1180 f. 

 L. MiNUTA, Mull. B. C. ii. 155, and v. 173, pi. 29. f. 6- 



C. 10-100 f.; P. 40-420 f. 

 L. LUCiDA, Lov. B. C. V. 173, pi. 100. f. 1. C. 20-230 f. ; 



P. 114-1263 f. 

 L. FRiGiDA, Torcll = Yohlia nana, Sars. C. 20-230 f. ; P. 



165-1380 f. I was wrong in believing that this distinct 



species might be a dwarf variety of L. luciJa. Prof. Torell 



described and figured it in his account of the Spitzbergen 



Mollusca ; it is also Greenlandic. 

 Akca PECTUNCULOiDES, Scacchi. B. G. ii. 171, and v. 175, 



pi. 30. f. 3. C. 30-100 f. ; P. 66-422 f. 

 *A. (iLACLVLis, Gray. B. C. ii. 173. 0. 60 f., fossil? P. 



290-420 f. 

 *A. OBLiQUA, Ph. B. C. ii. 175, and v. 175, pi. 30. f. 4. 



0. 60 f.; P. 164-422 f. 

 A. NODULOSA, Mull. B. C. ii. 180, and v. 176, pi. 100. f. 2. 



C. 10-60 f. ; P. 155-363 f. 

 Leptox NiTiDUM, Turton. B. C. ii. 198, and v. 177, pi. 31. 



f. 3. C. 40-60 f. 

 MONTACUTA SUBSTPvL\TA, Mout. B. C. ii. 205, and V. 177, 



pi. 31. f. 6. C. 2-100 f. ; P. 73-420 f. 

 •"M. liiDENTATA, Mont. B. C. ii. 208, and v. 177, pi. 31. f. 8. 



C. 40-100 f., and var. tnanc/ularis ■ P. 3-1366 f. 

 *M. Dawsoxi, Jeffr. B. 0. 'ii. 216, and v. 178, pi. 31. f. 7. 



