PLATE XXIX. 



Spongicola venusta (p. 213). ■ 



Fig. 1, ?. Lateral view (length, 25 mm.); enlarged four times. 



„ 2v. Brephalos, in Zoea form (p. 216). 



3c. Cephalon. The lateral wall of carapace removed to show branchiae in position. 



„ e. First siagnopod. 



,, f. Second siagnopod. 



„ g. Third siagnopod. 



,, h. First gnathopod. 



i. Second gnathopod. 



i". Coxa, basis, and part of ischium of the same enlarged ; ec, rudimentary basec- 

 physis ; mb, rudimentary mastigobranchia ; arthb, arthrobranchia. 



i. Branchiae of same ; mb, mastigobranchiae ; a,p, anterior and posterior arthro- 

 branchiae ; pi, pleurobranchia ; pdb, podobranchia. 



„ k. Branchiae of first pereiopod, letters as before. 



I. Branchiae of second pereiopod, letters as before. 



m. Branchiae of third pereiopod, letters as before. 



n. Branchiae of fourth pereiopod, letters as before. 



o, pi Pleurobranchia of the fifth pereiopod. 



v, z, v. Rhipidura ; v,v, sixth pair of pleopoda ; z, telson. 



