PLATE XIIb. 



Palinurid^e — Development (p. 89). 



Fig. 1. Phyllosoma of a Panulirus (?), taken off the Fiji Islands ; magnified seven 

 times (p. 91). 



,, 2. Pleon of the same ; v, posterior pleopod. 



„ 3.' Nervous system of a Phyllosoma of Panulirus (?) (p. 91). 

 a,a. Ophthalmopoda. 

 b,b. First antennae. 

 Gfi. Second antennae. 

 c'. The phymacerite. 

 g,g. Green gland (Sgg, shows structure enlarged). 



d. Mandibles. 



e. First pair of siagnopoda. 

 Hp. Hepatic dints. 



f-h. Ganglia of thorax. 



k-o. Ganglia of pereion. 



o,o. Posterior pair of pereiopoda. 



p-t. Ganglia of pleon. 



v. Sixth somite of pleon. 



z,v. Rhipidura. 



Scyllarid.e — Development (p. 95). 



46. Second antenna of a Phyllosoma of one of the Scyllaridae (p. 96). 



4e. First siagnopod. 



if. Second siagnopod. 



ig. First gnathopod (1). 



Ah. Second gnathopod ('.). 



4f/. Podobranchia and mastigobranchia of pereiopod : not yet escaped from the 

 embryonic sac. 



