image ap_39_39_9
Image number: RS.10804
Credit: © The Royal Society

Diagram of a giant clam

Date

1857

Creator

John Denis Macdonald (1826-1908), Naval medical officer

Object type

Material

Dimensions

height (painting): 306mm
width (painting): 190mm

Subject

Content object

nature
   > animal

Description

Diagram showing the main anatomical features of the Tridacna, a giant clam from the Pacific Ocean. Showing the circulatory, respiratory and digestive systems.

This bivalve mollusc was described by the author aboard HMS Herald in March 1857 as the vessel was engaged in surveying work in the south-western Pacific. The author, John Denis Macdonald was assistant surgeon on the ship.

Figures 9 from the manuscript version of the paper “On the anatomy of Tridacna’ by John Denis Macdonald, in Proceedings of the Royal Society of London, vol.8 (1856-1857), pp.589-590.

Monogrammed lower left: ‘J.D.M. March 1857’.

Sir John Denis Macdonald was elected a Fellow of the Royal Society in 1859.

Associated place