326 



DISCOVERY REPORTS 



Telson less than twice as long as wide; lateral spines 1-4 close to angle; posterior 

 margin concave, with long median spine and four spines on either side. 



Fig. 26. Thalassinid D. XV. St. 708. 

 a. Side view. h. Rostrum. 



d. Palp of maxillule. e. Palp of maxilla. 



Eye oval, pointed, black. Antenna with small 

 inner spine on basis ; scale with long outer basal 

 seta. Palp of maxillule and maxilla of three 

 segments. Maxillipede with outer seta on seg- 

 ment I. 



Chelae of legs i and 2 not very large. Leg 5 

 without exopod. Epipods absent. Three pairs 

 of pleopods. 



Callianassa? B.R. VII (Fig. 27) 



Barrier Reef St. 65. 



Body 4-84 mm. 



Rostrum broad, not much longer than an- 

 tennule. Carapace with close-set spines in front. 

 Abdomen : somite 2 with very large dorsal spine 

 reaching to somite 4; somites 3-5 with slight 

 smooth ridge and small posterior point. 



Telson three times as long as wide, widening 

 slightly to end, spines 1-3 widely separated; 



c. Telson. 



Fig. 27. Thalassinid B.R. VII. 



a. Abdominal somites 2-4. h. Telson. 



c. Telson, stage I. 



