PLATE XVIII. (Crustacea, Plate XLIV.) 



Iphinoe zimmcri, n. sp. 



n.s. Line indicating natural size of specimen figured below in dorsal and lateral 

 aspects. 



a.s., a.i. The first antenna and proximal part of the second, highly magnified. 



Car., a i., a.i. Part of the carapace, showing on the left the second antenna in 



position when in quiescence, on the right the first antenna in position, 



and the second withdrawn from its groove, 

 br. Branchial leaves from the branchial apparatus of the first maxilliped. 

 mxp. 2, mxp. 3. The second pair of maxillipeds and one of the third maxillipeds, 



each with the distal part more enlarged. 



prp. 1, 2, 3, 4, 5. The five perfeopods, with distal portions of the second and third 

 more enlarged. 



pip. One of the pleopods, with lateral armature of the peduncle much more 

 magnified. 



T., urp. Telsonic segment and uropods, with branches of the uropods more 

 enlarged. 



The details are all given, in the first instance, to a uniform scale, but the 

 further enlargements are on a higher scale for the antennfe and pleopod than those 

 of the other details. 



mxp. 1, juv. First maxilliped of a specimen apparently juvenile. 

 T. juv., urp. Telsonic segment and uropods of the young specimen, less highly 

 magnified than the maxilliped. 



