Unpublished paper, 'On the anatomy of Tridacna' by John Denis Macdonald

Description

Macdonald first explains the position which the animal of Tridacna occupies in its shell, in which it differs from bivalves in general. He then describes the mantle and its borders, the membranous interpallial septum, the respiratory and wide pedal openings communicating with the interpallial space, the two pairs of branchiae, the mouth with the anterior and posterior lip and the four oral palps, the foot, the extensive cloacal cavity with its subdivisions, and the circular contractile cloacal orifice opening on the dorsal surface.

Includes seven pages of figures of molluscs. Preceded by a covering letter dated 10 April 1857.

Subject: Biology / Malacology

Communicated by Captain [Henry Mangles] Denham.

Whilst the Royal Society declined to publish this paper in full, an abstract of the paper was published in volume 8 of the Proceedings of the Royal Society as 'On the anatomy of Tridacna'.

Reference number

AP/39/39

Earliest possible date

1857

Physical description

Ink on paper

Page extent

16 pages

Format

Drawing
Manuscript