312 DISCOVERY REPORTS 



Eye oval, black. Antenna: basis with inner spine, outer spine not very long; scale 

 without outer basal seta. Palp of maxillule of two segments, that of maxilla of three. 

 Maxillipede i with outer seta on segment i . 



Chela of leg i much larger than leg 2. Leg 5 with minute exopod without setae. 

 Epipods on legs 1-4. Four pairs of pleopods. 



Fig. II. Thalassinid B.R. II. 

 a. Head and rostrum. b. Telson. 



Group I B 



Dorsal spines on some abdominal somites paired 



The six species included in this group all agree in having a telson of "A" type and 

 well developed exopod on leg 5. In having some of the dorsal spines in pairs they 

 resemble Axius stirhynchiis, and there can be very little doubt that they may be assigned 

 to Axiidae. 



Thalassinid D. V (Fig. 12) 



Discovery St. 711. 



Rostrum 2-65 mm. ; body 7-07 mm. 



Rostrum broad, tapering, not greatly longer than antennule. Carapace with close- 

 set small marginal spines in front. Abdomen : somite 2 with large dorsal spine ; somites 

 3-5 with a pair of small dorsal spines, or somite 3 without spines. Pleura rounded. 



Telson three times as long as wide, slightly produced distally, with spine formula 

 8, I, 8. 



Eye oval. Antenna with large inner and outer spines on basis ; scale with outer basal 

 seta. Maxillule : palp short and stout, of two segments. Maxilla with palp of three 

 segments. Maxillipede i with outer seta on segment i. 



