Pleura 



328 DISCOVERY REPORTS 



somites 3-5 with small spines, dorsal ridge very slight and smooth. 



rounded. 



Telson wide, triangular, with 15, i, 15 spines, spine 2 reduced to a hair; marginal 

 spines decreasing in length towards the middle. 



Eye round, small, black. Antennal scale with outer basal seta. Palp of maxillule and 

 maxilla of three segments. Maxillipede i with outer seta on segment i and numerous 

 setae on segments 2 and 3 ; exopod with eleven apical setae ; epipod large. 



a. Rostrum. 

 d. Maxilla. 



Fig. 29. Thalassinid D. XVII. St. 406. 

 b. Telson. 

 e. Maxillipede i. /. Leg i. 



c. Palp of maxillule. 

 g. Leg 2. 



Legs I and 2 with large chelae, the palm wider than long. Legs 3 and 4 with propod 

 rather broad. Leg 5 without exopod. Epipods absent. Pleopods on somites 3-5 very 

 stout. Uropods large. 



Callianassa? B.R. IX (Fig. 30) 



Barrier Reef St. 46. 



Total length 6-4 mm. 



Rostrum narrow, serrated, not much longer than antennule. Carapace with small 

 spine at anterior angle and three small marginal spines. Abdomen : somites 1-5 without 

 spines ; somite 6 with a small dorsal spine. 



