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EXPLANATION OF PLATE. 



Illustrating Developmental Phases of the Common Lobster 

 (Homarus vulgaris). 



All the figures, excepting 7 and 8, are magnified representations, 

 the straight or curved lines, drawn in close proximity to the 

 respective figures indicating the natural size of the objects 

 delineated. 

 Fig. i. First larval or " Zoea" phase, immediately after exclusion 



from the egg. 



2 and 3. Second and third "Zoea" phases devoid of ab- 

 dominal appendages or swimmarets. 



4 and 5. Fourth and fifth "Zoea" phases, in which the 

 abdominal appendages are more or less conspicuously 

 developed. 



" 6. Sixth phase, in which the adult form is attained through 

 the development of the long antennae, and through the 

 obliteration of the swimming appendages of the thoracic 

 limbs. 



7 and 8. A single matured or " eyed " ovum, and a group 

 of similar ova, with their filamentous footstalks, of the 

 natural size. 

 9. One such ovum highly magnified, and showing the 



enclosed embryo. 



10. The simple spatulate form of the tail, as developed in 

 the larval conditions represented by Figs. 1-4. 



DISCUSSION.* 



Mr. KENNETH CORNISH, after some remarks on the 

 value of fish as food, having particular reference to a paper 

 read by Sir Henry Thompson at a previous Conference, 

 was going on to describe an improved method which he 



* The following discussion and motions carried refer in part to a 

 Paper that was read the same afternoon by Mr. T. Cornish, on the 

 subject of Crustacea generally. 



