CRAYFISH, LOBSTERS, CRABS, SHRIMPS, ETC. 109 



antennule 



opening of green gland 



maxillipeds 



thorax 



genital aperture 



.-'an us 



---'uropod 



-telson 



FIG. 41. Ventral aspect of female crayfish, Cambanis sp., with the 

 appendages of one side removed. 



