96 



83 



Fig. 25. Megalanceola stephenseni (Chevreux), female (after Pirlot, 1939). 



The head is short, with a very small rostrum; the interantennal lobe 

 is fairly narrow with a concave lateral surface. The pereon lacks a dorsal 

 keel. The mandibles have a strong palp, longer than the mandibuler body. 

 Maxillae I have short oval inner lobes; the palp has a straightly truncated 

 distal edge. The maxillipeds have highly pubescent outer lobes. 



The 5th segment of pereopods I is very slightly broadened distally, 

 in pereopods II its margins are almost parallel; the 6th segment is fairly 

 broad, roundish-oval, less than half the length of the 5th; the claw is 

 straight. The 6th segment of pereopods II is weakly conical, slightly 

 shorter than the 5th. The 2nd-6th segments of pereopods I and II, both 

 on the anterior and posterior margins and partly on the ventral surface, 

 bear numerous fine setae. Pereopods III and FV are identical in struc- 

 ture with rod-shaped 4th-6th segment; the 4th segment is only slightly 

 shorter than the 5th but longer than the thin 6th segment; the claws 

 are simple and nonretractile. Pereopods V are longer than the preceding 

 ones; the 4th-6th segments are rod-shaped, the 4th nearly equal to the 

 5th in length, the 6th slightly shorter; the broader 2nd segment has a 

 typical prominence in the proximal part of the anterior margin. Pere- 

 opods VI-VII are structured as in Lanceola, with a small prominence in 

 the proximal part of the anterior margin of the 2nd segment. The tel- 

 son is elongated-triangular, reaching the distal end of the basipodite of 

 uropods III. 



