PELECYPODA. . 59 
CYTHEREA (CALLISTA) HEBREA, Sowerby, Thes. Conch. 
vol. ii. pl. 13, figs. 143-148.—Natal. 
Circe (Crista) pectinata, Linn., Sowerby, Thes. Conch. 
vol. ii, pl. 137, figs. 1-3 = Cytherea Savignyi (Jonas).—Red 
Sea, Natal coast (Krauss), Port Elizabeth (Crawford). Also 
found in various parts of the Indian Ocean. 
MERO# OVALIS, Sowerby, nov. sp., pl. 3, fig. 69.—Testa 
ovalis, wquivalvis, crassa, leviter compressa, levis, pallide 
carnea, lineis pallidis violaceis angulatis, et concentricis 
sparsim picta. Umbones obtusi, haud prominentes. Area liga- 
menti profundissima. Cardo normalis. Pagina interna carnea. 
Diam, antero-post 22, umbono-marg. 15 millim. 
Hab. Port Elizabeth. 
Mr. Ponsonby has shown me a single valve, much worn, 
and quite colourless, of a much larger specimen, measuring 
35x 25 millim. The smaller specimen, which I have taken 
for the type, has a few faint markings like those of S. scripta. 
The general character of the shell is more like S. menstrualis, 
or excavata, but of a more oblong-oval form. 
TAPES CoRRUGATUS, Deshayes, Sowerby, Thes. Conch, 
vol. ii. pl. 150, figs. 121-122.—Common at Port Elizabeth. 
Tapus RUGOsUS, Deshayes, is Venerupis rugosa. 
TAPES TEXTRIX, Chemnitz, Conch. Icon. (Tapes), pl. 2, 
fig. 3. 
TAPES PAUPERCULUS, Chemnitz, is T. Kochi. 
Tares Desnayesu, Hanley, Thes. Conch. vol. ii. pl. 146, 
figs. 35-38.—Port Elizabeth. 
TAPES PULLASTRA, Montagu (Venus), Sowb., [lust. Index 
Brit. Shells, pl. 4, fig. 4.—This common British species is 
quoted by Krauss, on the authority of Wahlberg and Zeyher, 
from Natal and Algoa Bay. 
TAPES DACTYLOIDES, Sowerby, Thes. Conch. vol. ii. 
pl. 158, fig. 129.—Port Elizabeth (rare). 
Tapes GEoGRAPHICUS, Linn., Sowerby, Thes. Conch. 
vol. ii. pl. 149, fig. 90.—A well-known Mediterranean species, 
quoted by Krauss from Natal Bay. 
