PHTLLOBRAXCHIATE CRUSTACEA-MACRURA. 



453- 



EXPLANATIOX OF THE PLA.TES. 



i'^ig. 1. Float of carapace, from above 



2. Base ot first antenna. 



3. Third niaxillipcd. 



Plate 27. 



Figs. 1-5. Pontophilm aiistralis. 



Fig. -i. First pcreiopod. 

 5. Telsou and tail-fan. 



Figs. G-12. Alpheus socialis. 



Fig. 0. Part of large male specimen. 

 7. Front of carapace of same. 

 ■S. Front of carapace of a specimen from 

 Port Phillip (Australia). 



Fig. 9. Extremity of first pcreiopod of small 

 male (from inside). 



10. Extremity of third pcreiopod. 



11. Telson and tail-fan. 



12. Outer plate of last plcopod. 



Plate 28. 



Figs. 1-.2. Betceus (equimanus. 

 Fig. 1. Carapace, viewed from above. | Fig. 2. Telson. 



Figs. 3-12. Alojje jici/jjalis. 



Fig. .3. Portion of sternum. Fig. 8. Second maxilla. 



4. Telson and sixth pair of pleopods. 9. First maxillipcd. 



First antenna. 

 Mandible. 

 First maxilla. 



Fig. 13. 

 U. 



Ophthalmopod. 

 First antenna. 



10. Second maxillipcd. 



11. Second perciopod. 



12. Dactylos of third pcreiopod. 



Figs. 13-lG. Hijjpo/j/ie bijidirostr'is. 



Fig. 1."). Third maxillipcd. 

 1(). First pcreiopod. 



Fig. 2. Side view. 



3. Telson. 



4. First antenna. 



5. Second antenna. 

 <;. Mandible. 



7 . First maxilla. 



Plate 29. 



Fig. 1. Nniitlrar'is Stetcartl. 



Figs. 2-13. Xi/i/iocaris curvirostris. 



Fig. 8. Second maxilla. 

 9. First maxillipcd. 



10. Second maxillipcd. 



11. Third maxillipcd. 



12. First pcreiopod. 



13. Second pcreiopod. 



SKCOND SERIES. — ZOOLOGY, VOL. Vlll. 



m 



