BIVALVIA. 
Moll . 99 
specimens, and calls both the Mediterranean varieties, coloured and white, 
M. corallina (L.), although he himself considers this an artificial separation, 
p. 22, and admits his doubts as to the true species of Linne, p. 14. M. 
2 )ortoricensis (Shuttl.), p. 30, pi. x. figs. 3 & 4, not before figured. 
Mactra largillierti (Phil.), lisor (Desh.), and grandis (Gmel.) : critical 
notes on them by Dohrn, JB. mal. Ges. vii. pp. 164-166. 
Veneridai). 
The line on the inner side of the valves which will be mentioned (p. 101) 
in the Astartidw, is also seen in Cythcrea crassatelloides (Conrad), pondc- 
rosa (Koch), Venus donacina (Chemn.), melancegis (Dunker), and undulosa 
(Lam.), all comparatively thick shells ; Martens, SB. nat. Fr. 1880, pp. 
69 & 60. 
Circe pythinoides^ sp. n., J. E. Tenison Woods, Tr. R. Soc. Viet. xiv. 
[1878], p. 60, Victoria, Australia. 
Venus hrasiliana (Gmelin), and a new species of Corhula found in old 
shell mounds (“ sambaqu is ”) of Southern Brazil, province Santa Cata- 
rina, the former nearly exclusively in all mounds near the coast, the 
latter in some mounds near the rivers Rio Luiz Alves and Rio Bahu, 
12-18 kilometres from the coast. E. v. Martens, SB. nat. Fr. 1880, 
pp. 123-125. 
Chione calophylla (Jonas) with a pearl; Brazier, P. Linn. Soc. N. S. W, 
iv. p. 471. 
Sunetta clessmi, sp. n., Ancoy, Lo Nat. 1880, No. 26. 
U'ajjcs Victoria!, sp. u., J. E. Tenison Woods, Tr. R. Soc. Viet, xiv, 
[1878], p. 60, Hobson’s Bay, Australia. 
Cyrenida5. 
Corhicula largillierti (Phil.), ohtruncata, adunca, genliliana, hezauriana, 
foulciensis, astronomica, cordieriana, hicolor, diminuta, aguilina, uncinulata, 
colombeliana, vicina, conica, porcellanea, concinna, ingloriosa, gravis, 
indigotina, rathouisiana, debrixiana, fenouilUana, scholastica, montana, 
cheniana, gryphoia, polychromatica, lapicida, portentosa, ignobilis, bilineatai 
grilloana, papyracea, cantatoris, sphcerica, ferruginea., iridinea, sgualida, 
variegata, subquadrata, and iodina, spp. nn., Province of Nanking and 
adjacent regions. Heude, Conchyliologie fluviatile, fasc. x. pis. i,-viii. 
coloured. 
Vorbicula olipliantensis, sp. n.. Craven, P. Z. S. 1880, p. 618, pi. Ivii. 
fig. 12, Oliphant’s River, Transvaal. 
Corbicula iravadica (Blanf.), Mandalay, Blanford, J. A, S. B. xlix. 
pt. 2, p. 221. 
Corbicula bavayi, sp. n., Ancey, Le Nat. 1880, (No. 42), p. 334, Maroni 
River, Cayenne. 
Cyrena yuJeesi (Desh.), common in the mangrove swamps of North* 
east Australia, eaten by the blacks ; J. E. T. Woods, P. Linn. Soc. 
N. S. W. V. p. 122. 
Spheerittm rivicola (Lam.), p>allidum (Gray), scaldianum (Normand), 
