91 



78 



Fig. 22. Head of (a) Scypholanceola aestiva (Stebbing) and (b) 5. agassizi Woltereck 

 (after Woltereck, 1909). 



angle may be stretched backward into a small roundish lobe; the apical 

 segments are small; the 1st and 2nd are dolioform, the 3rd elongated-oval, 

 almost not narrowing distally and less than 1.5 times longer than the 2nd. 

 Antennae II are thin, nearly 1.5-2.5 times longer than antennae I; the 5th 

 segment of the peduncle is much longer than all the preceding segments 

 together; the distally narrowing proximal segment of the flagellum may 

 be shorter than, equal to, or longer than the 5th segment of the peduncle. 



The mandibles have a narrow, elongated body, their cutting edge 

 is not broad, the palp is long and strong, 1.3-2.0 times longer than the 

 body of the mandible. Maxillae I have a broad, one-segmented palp and 

 79 a broad inner lobe. Maxillae II have narrow, almost equal lobes. The 

 maxillipeds have oval outer lobes armed on the outer and distal margins 

 with strong setae; the inner lobes are small, weakly armed distally. 



Coxal plate I is roundish, rhomboid, with a slightly stretched forward 

 and downward tapered anterior distal angle. Coxal plates III-V taper 

 anteriorly. 



Pereopods I, particularly in large specimens, have a broad 2nd seg- 

 ment; the 5th segment is highly broadened distally so that its maximum 

 width is equal to or slightly less than its length; the posterior and espe- 

 cially the anterior distal angles form a large roundish lobe overhanging 

 the 6th segment (sometimes in young individuals the anterior lobe may be 

 almost undeveloped); the base of the oval-conical 6th segment is nearly 

 half the length of the distal margin of the 5th segment; the anterior distal 

 angle of the 6th segment is produced into a denticle overhanging the 



