BT GEO. M. THOMSON, F.L.S. 7^ 



Plate TV. 

 J'igs. 1-10. Talitrus sylvaticus. 



1. Mandible, x56. 



2. Lower lip, x84. 



3. Maxillae (a) first pair ; (h) second pair, x56. 



4. Maxillipeds, x56. 



5. Second gnathopod of male (Sydney specimen), xlS. 



6. do. do. do. (Mt. Wellington specimen), 



xl3. 



7. Fifth pereiopod, x40. 



8. Pleopod of first pair, x40. 



9. Telson,x56. 



10. Last pair of uropoda, x56. 



Figs. 11 & 12. Niphargus mortoni. 



11. Mandible-palp, x40. 



12. First maxilla, x40. 



Plate Y. 

 Figs. 1-5. Niphargus mortoni. 



1. Maxillipeds, x40. 



2. Second gnathopod, x26. 



3. Extremity of abdomen from the side, xl7. 



4. Telson (t), with inner branch of last uropodj (u) from 



above, x28. 



5. Outline of body (of female), x5. 



Figs. 6-8 Talorchestia diemenensis (female.) 



Q. First gnathopod, x26. 



7. Second gnathopod, x26. 



8. Hand of second gnathopod, x56. 



Figs. 9 & 10. Lysianax stebbingi. 



9. First pereiopod, x26. 

 10. Second pereiopod, x26. 



Plate VL 



Figs. 1-13. Niphargus montanus. 



1. Animal, x7. 



2. Front of head and antennse, x41, 



