EXPLANATION OF PLATES. 
363 
Tab. XXXII. 
Fig. 1. Caligus diaphanus. 
2, 3. C. rapax , male and female. 
4, 5. C. Mulleri , male and female. 
6, 7. C. centrodonti , male and female. 
8, 9. Lepeoptheirus Stromii } male and female. 
10. L. pectoralis, female. 
11. L. obscurus * 
12. L. hippoglossi , female. 
Tab. XXXIII. 
Fig. 1. Lepeoptheirus Nordmannii. 
2. L. Thompsoni. 
3, 4. Trebius caudatus , male and female. 
5, Chalimus scombri. 
a. View of do., adhering to Caligus Mulleri. b. Kostrum. 
6, 7. Dinemoura alata , male and female. 
8. D. lamncB , female. 
9. Anthosoma Smithii. 
10. Pandarus bicolor , female. 
• 11. Nicothoe astaci. 
Tab. XXXIY. 
Figs. 1, 2. Cecrops Latreilleii , male and female. 
3, 4. Lcemargus muricatus. 
5. Carapace of Caligus diaphanus ; under surface, 
to show the different organs in situ . 
a. Lnnules or sucking-discs, b. Antenna, c. First pair of foot- 
jaws. f. Mouth, g. Organs representing the posterior pair 
of jaws. h. Second pair of foot-jaws. i. Third pair of do. 
j. Sternal fork. k. First pair of thoracic feet. 1. Second 
pair of do. m. Third pair of feet. n. Fourth pair of do. 
Fig. a. First pair of foot-jaws of Lepeoptheirus Nordmannii. b. Mouth 
and posterior jaws of do. c. Sternal fork of do. d. Sternal 
fork of L. hippoglossi. e. Fourth pair of feet of Trebius 
caudatus. 
* This may possibly prove to be the male of L. hippoglossi. 
