A. testâ auriculatâ, cordatâ, ventricosâ, multi-costatâ, transversim striatâ, albâ, epidermide rufo nigricante, pilosâ; umbonibus sub-approximatis, incurvatis, margine crenulato; long. 1; lat. 12⁄8; poll.
Habitat ad Rio de Janeiro. Mus. Brit., nost., Brod.
14. Nucula striata.
N. testâ striatâ, subtumidâ, crassâ, sub-trigonâ, albâ; latere antico productiori, sub-rostrato; long. 9⁄32; lat. ⅜; poll.
Habitat in mari alto circa oras Patagonicas. Mus. nost.
Taken by a dredge in 40 fathoms water, 20 miles from the coast of South America, in the neighbourhood of Port Sta Elena.
15. Modiola sinuosa.
M. testâ ventricosâ, subovatâ, longitudinaliter striatâ; intus iridescente, margine sinuoso, epidermide fuscâ; long. 7⁄16; lat. 14⁄16 fere; poll.
Habitat ad littora Brasiliæ (Santos). Mus. nost.