of the family canthocamptid^. 93 



Summary. 



JSfitocrameira hdellura', nov. gen. et sp., from egg-cases o£ Bdellura 

 propwi^wa, Wheeler ; and less frequently those of Bdellura Candida, Girard. 



HaRPACTICOIDEA, family r; A NTH CAMP T ID ^. 

 Genus NiTOCRAMEIRA. 



Body. Long, smooth, almost cylindrical, somewhat compressed anteriorly. 



Rostrum small ; caudal rami short. 

 Ant. I. 8-jointed, setose anteriorly, last two joints well-defined. 3-jointed 



gesthetasc on segment 4. Female antenna bent at 3rd joint. Male 



4th and 5th joints fused ; whole forming a strong clasping organ. 

 Ant. II. Basal joint sub-divided ; outer ramus uniarticulate and much 



reduced. 

 Mandihle. One cutting-blade and crown of short teeth. Palp biarticulate, 



proximal joint slightly expanded. Distal joint only, bears setse. 

 Maxilla I. Expanded jaw-like portion bearing three spines and two almost 



equal lobes and a third very minute setose one anteriorly. 

 Maxilla II. Two lobes with stout terminal spines. 

 Maxilliped. Subchelate prehensile hand. 

 Thoracic legs. Endopodite and exopodite three-jointed, except last which is 



reduced. 



First pair prehensile, last pair much reduced, but more similar in 



male and female than is usual in the family. 

 In some generic characters resembles JSitocra, in others Ameira. 



EXPLANATION OF THE PLATES. 



Plate 10. 



Fie. 1. Nitocrameira, female, lateral view. Partly diagrammatic as the appendages of the 

 right side only are shown. 



2. View of last thoracic and first abdominal segments of male, showing last thoracic 



limbs, rudimentary abdominal appendages, and spermatophore. 



3. Egg-case of Bdellura propinqua containing one male and two female Nitocrameira. 



Each of the females has a brood of developing eggs, and tvpo stages of larvae ar 

 shown, six of each stage, 



4. Young Nauplius larva about -09 mm. long. This was the commonest larval stage 



that occurred. 

 6. First antenna of female. 

 6. First antenna of male. 



