1'^ Fulton avd Grai>t: 



Fan lily — Callia nassidae. 



Genus — Ca//ianassa, Leach. 



Callianassa cepamica, sp. nov. (Plate V.). 



The cephalothorax, abdomen and appendages in dried speci- 

 mens are everywhere of a pale cream colour with a highly glazed 

 surface like tine china. In living examples, how ever, and specimens 

 preserved in spirits, the skeleton is found to be imperfectly 

 calcified except in the chelipedes. 



The cephalothorax is about one-third the total length of the 

 body, and is laterally compressed. The rostral point is short, 

 but is well defined and extends considerably beyond the lateral 

 angles, which are only faintly indicated. A well-defined groove 

 on the dorsal surface runs parallel with the front, extending 

 downwards as far as the base of the outer antennae, and thence 

 in two parallel lines, one on each side defining the branchial 

 region and curving upwards and backwards to meet near the 

 posterior margin. The cephalothorax is otherwi.se perfectly 

 smooth. 



The abdomen is much flattened dorso-veutrally. The first 

 segment is narrowed anteriorly and is membranous. The second 

 is somewhat more calcified, but not so much as those succeeding. 



The longest segments are the second and sixth, which are 

 subequal, being followed in diminishing sequence l)y the fifth, 

 thix'd, fourth and first. The first two segments are (juite smooth, 

 the following three are fringed with strong hair, and the 

 final segment also carries a few short hairs. No dorsal carina or 

 spines are present on any of the segments. 



The eye-lobes are rounded, and contiguous on their inner 

 margins. The eyes are small and only slightly pigmented. 



The first antennae are about three-fourths as long as the 

 second. The first joint extends beyond the eye-lobes, the 

 second is slightly longer than the first, and the flagelia which 

 carry a few slender setae are as long as the first two joints 

 combined. The second antennae are as robust as the first l»ut 

 have a shorter peduncle and much longer lash. 



The third maxillipeds have the third and fourth joints rounded 

 and much swollen, with their line of junction wide and truncated. 



