I. '08. 



188 



Fig. 

 Fig. 

 Fig. 



6 



7 

 8 



Fig. 

 Fig. 



9 

 10 



Fig. 

 Fig, 



11 

 12 



Fig. 

 Fig. 



Fig. 

 Fig. 

 Fig. 



1 



2 

 3 



Fig. 

 Fig. 

 Fig. 

 Fig. 

 Fig. 

 Fig. 

 Fig. 



4 

 6 

 6 

 7 

 8 

 9 

 10 



Fig. 



11 



Fig. 



12 



Fig. 



13 



Fig. 

 Fig. 



U 

 15 



Fig. 



16 



Fig. 



17 



Fig. 1 



Fig. 4. 



Fig. 5. 

 Fig. 6. 



Plate XVI. — continued. 



-Basal joint of antennular peduncle, 



-Second maxillipede, 



-First maxillipede, 



-Second maxilla, 



-First maxilla, 



-Mandible, 



-Apex of telson, . . 



Plate XVII. 

 Leontocaris lar, Kemp. 



-Lateral view of the type specimen, a female, 

 -Second pereiopod, right side,... 

 Papillae from hinder margin of nierus of second 



pereiopod, left side, 

 -Mandible, 

 -First maxilla, 

 -Second maxilla, 

 -First maxillipede, 

 -Second maxillipede, .. 

 -Rostrum of another specimen, a male, 

 -Chela of second pereiopod, left side, viewed 



dorsally, 

 -Chela of second pereiopod, left side, viewed 



laterally, 

 -Antennal scale and basal joints of antenna, 

 -Antennule, '... 



-First pleopod of male, 

 -First pleopod of female, 

 -Outer uropod, 

 -Telson, 



Plate XVIII. 



Bythocaris gracilis, Smith. 



-Dorsal view of the cephalic region of the Irish 



specimen, a male, 

 -First pleopod of the same specimen, ... 

 -Telson of the same specimen (with apex further 



enlarged), 



Bythocaris Payeri (Heller). 



-Dorsal view of the cephalic region of a young 



male, 

 -First pleopod of male, 

 -Telson, 



Plate XIX. 



X 



19-5 



X 



19-5 



X 



19-5 



X 



19-5 



X 



19-5 



X 



19-5 



X 



19-5 



X 8-5. 

 X 13-5. 



9-5. 

 21. 

 21. 

 22. 

 21. 

 21. 

 X 17. 



X 20-5. 



X 20-5. 



X 22. 



X 22. 



X 21. 



X 21. 



X 22. 



X 18 



10-5. 



28. 



X 15. 



X 



4. 



X 



5-5 



X 



7. 



Alpheus ruber, H. Milne-Edwards. 



Fig. 1. — Lateral view of a male. 



Fig. 2. — Dorsal view of cephalic region of a female, 



3-5. 

 6. 



