3o8 DISCOVERY REPORTS 



Telson nearly four times as long as wide; spines 1-3 widely spaced, 3 and 4 close 

 together ; posterior margin produced, with seven spines on either side ; formula 11, i , 11. 



Eye very narrow oval. Antenna with long outer and short inner spine on basis; 

 scale with seta at base. 



Maxillule with palp slender of two segments. Maxilla with palp of three segments. 

 Maxillipede i with outer seta on segment i of endopod. 



Fig. 7. Thalassinid D. II. 



a. Head and rostrum. St. 1375. b. Telson. St. 1375. c. Antenna. St. 1375. 



d. Palp of maxillule. St. 1580. e. Endopod of maxillipede i. St. 1580. 

 /. Gills of legs 3 and 4. St. 1580. 



Legs I and 2 chelate. Exopod of leg 5 as long as merus. Epipods, with rudiments of 

 podobranchs, and a pair of very large arthrobranchs on legs 1-4. Pleopods on somites 

 2-5 with rudiment of appendix interna. 



Though much less common than the preceding species, the distribution is about the 

 same, extending in the Atlantic to 14° N and to the equator off east Africa. The large 

 epipods, with rudiments of podobranchs, point definitely to an Axiid genus. The 

 extreme elongation of the arthrobranchs is a unique feature. 



