SOLENOCONCHiE, LAMELLIBRANCUIA. 
MolL 79 
SOLENOCONOHiE. 
Dentalium candidum, west coast of Ireland and Bay of Biscay, 
416 -2433 fathoms, capillosum, Bay of Biscay, Portugal, Azores, and Gulf 
of Mexico, 690-1450 fathoms, ensiculus, W. of Ireland and Portugal, 
740-1785 fathoms, and subterjissum, W. of Ireland, 1000-1476 fathoms, 
spp. nn., Jeffreys, Ann. N. H. (4) xix. pp. 153-155. 
Dentalium japonicum and weinhauffi,^ spp. nn., Dunker, Mai. Bl. xxiv. 
p. 68, Japan. 
Siplionodentalium vitreum (Sars) = lahiatum (Sow.), S. affine and 
lofotense (Sars)j new localities; Jeffreys, Ann. N. H. (4) xix. p. 155 & 156. 
Cadulus tumidosus, Channel slope and Bay of Biscay, 292-1450 fathoms, 
cylindratus, W. of Ireland, 1215-1476 fathoms, gracilis, North Atlantic, 
spp. nn., and C. olivi (Scacchi as Dentalium, 1835, fossil) found in the 
recent state, W. of Ireland and in the Channel slope, 539-1450 fathoms ; 
id. 1. c. pp. 156-158. 
\_Cadulus~] Cadus divce, sp. n., Y^lain, Arch. Z. exper. vi. p. 128, pi. v. 
figs. 1 & 2, St. Paul Island. 
LAMELLIBRANCUIA. 
Anatomical descriptions of the structure of the gills, the organ of 
Bojanus, &c. (See above in the general subject. Anatomy and Physiology.) 
. Pholadid.®. 
Bactronophorus, new name for Calobates (Gould, 1862, nec Kaup, 
Aves, 1829); Tapparone-Canefri ; Ann. Mus. Genov, ix. p. 290. 
Myid.®. 
Mya truncata (L.) var. uddevalensis (Forb.). Discovery Bay, 81® N. lat. 
E. Smith, Ann. N. II. (4) xx. p. 145. 
Saxicavidjj. 
Saxicava arctica (L.), Discovery Bay, 81 ° N. lat., a solid purplish-brown 
coloured variety at Franklin-Pierce Bay, 79® N . lat. ; E. Smith, Ann. 
N. H. (4) XX. p. 145. 
Saxicava hisidcata, sp. n., id., Transit Venus Exp., Moll. p. 18, pi. ix. 
fig. 21, Kerguelen Island [anted^ p. 6]. 
Anatinid^e. 
Lyonsia arenosa (Moller) = gihbosa (Hancock, 1846), Discovery Bay, 
81® N. lat. ; id. Ann. N. H. (4)xx. p. 140. 
Pandora {Kennerlia) grandis, sp. n., Dali, P. Cal. Ac. 1877, separate 
copy, p. 5, Unalaska to Puget Sound. 
