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Variations in the White Pigment of the Eye in Gammarus cheureuxi Sexton, with a Description of a New Genetic Type, the “Clotted eye.”

Published online by Cambridge University Press:  11 May 2009

E. W. Sexton  and
A. R. Clark
A. R. Clark
Affiliation:
From the Plymouth Laboratory.
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Extract

A Great number of variations from the normal type have occurred in Gammarus chevreuxi during the course of the work carried out from 1912 until now.

In reviewing these variations it is convenient to class them according to the parts affected :

(1) Pigmentation of the body (3, p. 194).

(2) The Red retinal pigment of the eye (4, pp. 45–52).

(3) The Black retinal pigment of the eye.

(4) The white accessory pigment of the eye (2, p. 350).

(5) The structure of the eye, involving also the structure of the head (1, p. 274 ; 6, pp. 356–369).

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 20 , Issue 3 , March 1936 , pp. 691 - 699
Copyright
Copyright © Marine Biological Association of the United Kingdom 1936

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References

REFERENCES

1. 1917. Allen, E. J., and Sexton, E. W.The Loss of the Eye Pigment in Gammarus chevreuxi. Journ. Mar. Biol. Assoc., N.S., Vol. XI, No. 3, pp. 273–353.CrossRefGoogle Scholar
2. 1920. Allen, E. J., and Sexton, E. W.Eye-colour in Gamrnarus. Journ. Genetics. Vol. IX, No. 4, pp. 347–366.CrossRefGoogle Scholar
3. 1926. Sexton, E. W., and Clark, A. R.New Mutations in Gammarus chevreuxi Sexton. Nature, Vol. 117, pp. 194–195.CrossRefGoogle Scholar
4. 1928. Sexton, E. W.On the Rearing and Breeding of Gammarus in Laboratory conditions. Journ. Mar. Biol. Assoc., N.S., Vol. XV, No. 1, pp. 33–55.CrossRefGoogle Scholar
5. 1932. Sexton, E. W., Clark, A. R., and Spooner, G. M.Some new Eye-colour Changes in Gammarus chevreuxi Sexton. Part II. Journ. Mar. Biol. Assoc., N.S., Vol. XVIII, No. 1, pp. 307–336.CrossRefGoogle Scholar
6. 1932. Sexton, E. W.Degeneration and Loss of the Eye in the Amphipod Gammarus chevreuxi Sexton. Part I. Journ. Mar. Biol. Assoc., N.S., pp. 355–394.CrossRefGoogle Scholar
7. 1933. Sexton, E. W., and Clark, A. R.Further Mutations in the Amphipod Gammarus chevreuxi Sexton. Nature, Vol. 131, p. 201.CrossRefGoogle Scholar