lamellibranchia. 
201 
‘ MaCTRIDJ}. 
Mactra soUda (L.). Varieties in the German Sea; Metzger, Ber. 
Unters. Pommerania, p. 254. 
Mactra anserina^ sp. n., R. J. Lechmere Guppy, Ann. N. H. (4) xv. 
p. 49, pi. vii. fig. 1, Oumana, Venezuela. 
Veneridjj. 
Dosinia immaculata^ sp. n., J. E. Tenison Woods, 1. c. p. 26, Tasmania, 
Callista victorice^ sp. n., id. 1. c. p. 27, Tasmania. 
Venus superha^ sp. n., R, J. Lechmere Guppy, Ann. N. H. (4) xv. 
p. 49, pi. vii. fig. 2, Cumana, Venezuela.. 
Tapes edulis (Chemn.) — mrginea of English authors =±= virago (Loven) ; 
Metzger, Bers. Unters. Pommerania, p. 254. 
Venerupis reticulata, sp. n., J. E. Tenison Woods, 1. c. p. 27, Tasmania. 
CyRENIDiE. 
Cyrena sumatrensis (Sow.), with C. siamica (Prime) as variety, from 
Siam, Cambodia, and Cochin China ; Morelet, Series Conch, iv. p. 358. 
Cyrena huschi (Phil.) = triangularis (Metcalfe), Borneo ; Issel, Ann. 
Mus. Genov, vi. p. 472. 
Corhicula moreletiana (Prime), Cambodia, hocourti (Morelet, 1865), 
Saigon, insularis (Prime), Siam, castanea (Morelet, 1865), Cochin China, 
amiralis (Prime), Saigon, larnaudiei (Prime), Siam, episcopalis (Prime), 
Siam, and guhernatoria (Prime), Saigon ; Morelet, 1. c. pp. 360-365, all 
figured, pi. XV. figs. 2, 4, 5 & 7, pi. xvi. figs. 2-4, and pi. xvii. fig. 4. 
Corhicula dayakorum, sp. n., Issel, Ann. Mus. Genov, vi. [1874] p. 473, 
pi. vii. figs. 25-27, with varr. nn. olivacea and inceguilatera, and C. ducalis 
(Prime), p. 475, both from Sarawak, Borneo. 
Corhicula hensoni (Desh.), River Jumna, cashmirensis (Desh.), Cash- 
mire, and regularis (Prime), Madras; Hanley & Theobald, Conch. 
Ind. p. 55, pi. cxxxviii. figs. 1-6. 
Sphoerium hourguignati, Lallemant & SerVain,^Cat. moll. terr. & fluv. de 
Jaulgonne, 1869, p. 46, River Marne, near Jaulgonne ; S. galitzini, 
Clessin^ JB. mal. Ges. ii. p. 40, pi. ii. fig. 6, River Oka, Russia : spp. nn. 
Cardiidjj, 
Cardium edule, L. Varieties in the German Sea ; Metzger, Ber. 
Unters, Pommerania, p. 254. 
Cardium fasciatum (Mont.) and exiguum var. parvum (Phil.), from the 
Baltic, comparatively described ; E, F. Koch, JB. mal. Ges. ii. pp. 189 
& 190. 
Cardium ehurmferum\_ehoriferum‘], sp. n., R. J. Lechmere Guppy, Ann. 
N. H. (4) XV. p. 51, pi. vii. fig. 3, Trinidad and Grenada. C. haitense 
(Sow., J. G. Soc. vi. p. 52, pi. x. fig. 11, as fossil), found in a recent state 
in the Gulf of Paria, Trinidad ; id. ihid. 
