PLATE I. 



" Harriotta " Pacißca, Mitsukuri. Superficial characters and skeleton. 



Fig. 1 Lateral view of adult female X about tS 



2 Dorsal view of head of same specimen. 



3 Ventral ,, „ „ „ ,. „ 



4 Skeleton of same specimen. 



4 a Yen view of pelvic girdle. 



6,6 a Mandible, ventral and dorsal (visceral) aspects. 



7 Visceral arches, ventral aspect. 



8 Ventral fins and mixipterygia of male. X about J 



8 a Antero-lateral clasping organ, ventral aspect. X about 1. 



8 b Antero-lateral clasping organ, view of tip. X about 1. 



8 c Tip of mixipterygium. 



8 d Frontal clasping organ. Slightly reduced. 



