1908.] 



GEXUS OF AMPHIPOD CRUSTACEA. 



401 



PlATE XV. 



Fig. 1. First maxilla, ^ Irish specimen (with 4th spine 



X 265, to show the serration) T. niaeense. X 42. 



2. First maxilla, $ , magnified to show palp and inner 



plate „ X 75. 



3. Second maxilla, $ Irish specimen „ x 42. 



4. Maxilliped, (? Irish specimen „ X 42. 



5. Palp of maxilliped, inner surface, $ ' Huxley ' 



specimen „ X 42. 



6. First gnathopod, (J Irish specimen „ X 17. 



7. „ ,, ? ' Huxley ' specimen „ X 17. 



8. „ „ inner surface, i^ ' Huxley ' spe- 



cimen (with three of the small teeth 



from the palm X 75) „ X 17. 



Plate XVI. 



Fig. 1. Second gnathopod, $' Huxley' specimen T. nicaense. X 17. 



2. Claw of second guathopod, (^ Irish specimen „ X 265. 



3. Terminal joints of second gnathopod, $ ' Huxley ' 



specimen „ X 42. 



4. Tip of " hyaline hair," 6th joint, second gnathopod, 



$ ' Huxley ' specimen „ X 265. 



5. Tip of "jointed seta," 6th joint, second gnathopod, 



' Huxley ' specimen „ X 265. 



6. One of the " dactjdoptera " of the 4th perteopod, 



$' Huxley ' specimen „ X 150. 



7. First peraaopod, ? ' Huxley ' specimen „ X 17. 



8. Second „ $' Huxley ' specimen ....: „ X 17. 



9. Third „ $ ' Huxley ' specimen „ X 17. 



Plate XVII. 



Fig. 1. Fourth perffiopod, ?' Huxley ' specimen T.nicceense. X 17. 



2. 



5th joint. 



Fifth „ ? ' Huxley ' specnuen. 



Fringe of spines on anterior angle of 



5th perseopod, ' Huxlej' ' specimen 



Second pleopod, ' Huxley ' specimen 



Coupling spines, second pleopod, ' Huxley ' spe- 

 cimen 



Tip of uncinate seta, second pleopod, 'Huxley' 

 specimen 



Tip of 5th cleft spine, second pleopod, ' Huxley ' 

 specimen 



Uropoda and telson, $ Mediterranean specimen 



Serrations, inner margin of inner ramus, first 

 uropod, $ 



Serrations, inner margin of outer ramus, first 

 uropod, $ 



Telson, (J Irish specimen 



Sensory setule from telson, Irish specimen 



X 17. 



X 265, 

 X 17. 



X 265. 



X 265. 



X 265. 

 X 17. 



X 265. 



X 265. 

 X 42. 

 X about 500. 



Telson,? T. rascUi. X 42. 



Plate XVIII. 



-Fig. 1. First three segments of pleon, adult $ T. i'ascJiii. 



2. Superior antenna, adult $ 



3. Terminal joints of accessory flagellum, superior 



antenna, $ 



4. Superior antenna, immature specimen 



5. „ „ young specimen 



6. Inferior antenna (seen from the under side), adult $ . 



7. „ „ young specimen 



8. Oral parts in position, ? 



9. Upper lip, ? 



10. Lower lip with one lobe flattened , ? 



