LAMELLTBRANCHIA. 
189 
Pectunculus plcmatua, sp. n., Gr. & H. Nevill, J. A.. S. B. (n.s.) xliii. 
pt. 2, p. 29, pi. i. fig. 1 fi, AiKlamans. 
Pectunculus albilineatus (Lisclike, 1872) from Yeddo, fully described ; 
Lischke, Jap. Meer. Conch, iii. p. 108, pi. ix. figs. 11 & 12. 
Limopsis compressa^ sp. n., C. & H. Nevill, 1. c. p. 28, pi. i. fig. 17, 
Andamans. 
Nuculid.®. 
Nucitla strangii (A. Ad.) ; E. Smith, Moll. Voy. Ereb. & Terr. pi. ii. 
fig. 14. 
Neilo australis (Q. C.), id. 1. c. fig. 13. 
Malletia (Desm.). The few known species enumerated, and Yoldia 
ohtusa (Sars, 1872), from Norway, placed in this genus, by Morch, Forh. 
Skand. Naturf. mote 1873, Kjobenhavn, p. 375, and J. de Conch, xxii. 
pp. 177-179. 
SOLEMYID^. 
Solemya parhinsoni (Cray, MS.), sp. n., E. Smith, 1. c. p. G, pi. iii. fig. 1, 
New Zealand. 
Trigoniidje. 
Trigonia pectinata (Lam.). On its different forms; Tapparone- 
Canefri, Malac. viagg. Magenta, p. 137. 
PECTlNIDiE. 
Pecten pustulosus, sp. n., Verrill, Am. J. Sci. (3) v. [1873] p. 14, note, 
St. George’s Bank, New England, 150 fathoms. 
Pecten secernendu's, Tapparone-Canefri, 1. c. p. 149, pi. iv. fig. 6, 
Hongkong ; P. lamberti, Souverbie, J. de Conch, xxii. p. 200, pi. vii. 
fig. 9, New Caledonia ; P. similis, Baird, in Brenchley’s Cruise of the 
Cura 5 oa, p. 453, pi. xlii. fig. 7, Friendly Islands : spp. nn. 
Pecten zelandice (Gray) ; E. Smith, 1. c. pi. iii. fig. 7, type. 
OSTREID^. 
P. Fischer reviews the present state of oyster-breeding at Arcachon, 
the final results of which he considers quite satisfactory ; the bad results 
of former years are attributed to the periiicious action of frost and 
excessive heat, to the ravages of a erab, Carcinus mamas (L.), &c. 
Ostrea angulata, from Portugal, is definitely acclimatized. Act. Soc. L. 
Bord. xxix. pp. 1G3-1G8. 
The same subject has been treated by L. Soubeiran, Auschitzky, and 
De Rochbrune, in a publication of the “ Association fran 9 aise pour 
favancement des sciences,” 1st session, Bordeaux, 1873, pp. 614, 620 & 
624. Ostrea virginiana (Gm^d.) stated to be truly hermaphrodite, with 
