PLATE XXVI. 



Nephrops thomsoni (p. 185). 



Fig. 1. Carapace, with the lateral wall removed to show the branchiae. 



d. Siagon. 



e. First siagnopod (basal plate probably wanting). 



f. Second siagnopod. 



g. Third siagnopod. 

 h. First gnathopod. 



i. Second gnathopod. 



>". Mastigobranchia. with podobranchial plume of same. 



i'". Section of the plume. 



o". Apex of the posterior pleurobranchial plume. 



jj, 7. . First pleopod of male, exhibiting cincinnuli. 



(/. Second pleopod with stylamblys. 



