| Description | Slide shows four diagrams, the first three of which are Fig. 141. The fourth is Fig. 142.(Aphrodite).
First three diagrams are labelled 'A' to 'C'. Each diagram is labelled with further letters. A key is provided which reads 'Fig. 141. - A, Alimentary canal of Syllid : B, transverse section of pharynx of the same; b, buccal region; d, oesophageal outgrowth; g, salivary glands; i, intestine; j, tooth; p, pharynx; s, gizzard : C, Alimentary canal of Petta (after Wiren); i, intestine; o, oesophagus; r, rectum; s, stomach.'
The fourth diagram is labelled with the letters 'a','b','c', and 'o'.
These letters are explained in the following key:
'Fig. 142. - Alimentary canal of Aphrodite. x 1. (From Gegenbaur.) a, Anus; b, pharynx; c, caeca; o, mouth.' |