EXPLANATION OF PLATE I. 
All the figures refer to Cerapus flintier si. 
A. — View of a portion of one end of the tube with the animal (a large 
male) in it, x 9*5. 
B. — Dorsal view of the same animal when extracted from the tube, x 9*5. 
The bases of the antennae are shown, also a portion of the second 
gnathopoda. and the last pair of pereiopoda ; the other limbs 
being concealed from view. The pleon is bent back under the 
body. (The front of the head in figures A. and B. has been 
drawn much too broad.) 
a. s. — Upper antenna x 22-5. 
a. i. — Lower antenna x 22*5. 
gn. 2^ A. — Second gnathopod of large male, x 22’5. 
gn. 2 S B. — Second gnathopod of younger male, x 52. 
gn. 2 9 . — Second gnathopod of female, x 90. 
prp. 3 S • — Third pereiopod of large male, x 52. 
prp. 3 $ . — Third pereiopod of female, x 52. 
ur. 1. — First uropod \ 
nr. 2. — Second uropod 
ur. 3. — Third uropod 
T. — Telson 
•Seen from above, all x 90. 
