. Fig. 23. Nematoscelis megalops. a, second calyptopis, lateral view; b, telson; c, second calyptopis, dorsal view. The first antenna is biramous and has a three-segmented peduncle. The inner ramus carries three terminal setae and the outer ramus four. The second segment of the peduncle carries a small spine on its inner, distal margin. The remaining thoracic appendages are the same as in the first calyptopis except that the endopo- dite of the first cormopod now has two segments. In none of the five specimens examined was there any sign of the second thoracic limb. The thorax is clearly segme


. Fig. 23. Nematoscelis megalops. a, second calyptopis, lateral view; b, telson; c, second calyptopis, dorsal view. The first antenna is biramous and has a three-segmented peduncle. The inner ramus carries three terminal setae and the outer ramus four. The second segment of the peduncle carries a small spine on its inner, distal margin. The remaining thoracic appendages are the same as in the first calyptopis except that the endopo- dite of the first cormopod now has two segments. In none of the five specimens examined was there any sign of the second thoracic limb. The thorax is clearly segmented. The abdomen has five segments and a telson. The developing uropods can be very clearly discerned within the integument of the telson. The telson now carries seven terminal spines, three pairs of postero-lateral and one pair of ventro-lateral.


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Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti