SOME PARASITIC COPEPODA. 59 



EXPLANATION OP THE PLATES. 



The following letters apply to all the figures: — A. 1 , first antenna; A. 2 , second antenna; a., anus; 

 C.th., cephalothorax ; C.F., caudal furca ; C.G., cement-gland ; E.c, excretory cells ; F.\ F. 2 , F. 3 , first, 

 second, third thoracic foot or swimming-foot; F.I., fore lip; G.O., genital opening; G.S., genital 

 segment ; /., intestine ; LB., inner branch of second antenna or first maxilla ; H.I., hind lip ; 

 M., muscle, muscle-baud ; m., mouth, mouth-tube ; Md., mandible ; Mr. 1 , first maxilla ; Mr. 2 , second 

 maxilla; Mxp}, first maxilliped ; O.B., outer branch of second antenna, or first maxilla; Od., oviduct; 

 CEs., oesophagus; Ov., ovary; Ovs., ovisac; Pg., pigment; P., papilla; p.ab., postabdomen ; 

 P.p., posterior process; R.S., receptaculum seminis; S.G., excretory gland; S .1., side lip or lateral 

 outgrowth of hind lip ; T., testis ; I., tenaculum. 



Plate 8. 



Bomolochus sulem, Claus. 



Fig. 1. Female. Length 1*53 mm. Ventral. 



2. Male. Length '83 mm. Ventral. Enlarged to the same scale as fig. 1. 



3. Male. Second antenna, showing part of the upper lip, mandible, and first maxilla. The 



length AB = - 1 mm. C%.^. = chitinous plate. 



4. Female. Mouth-parts. Cleared with potash. Length = - ll mm. 



5. Males. First maxilliped. Length of AB = 44 rnni., BC = - 15 mm. 



Brachiella pastinaca, Van Beneden. 



6. Female. Length 5*5 mm.; length of head 2*4 mm. x 10. 



7. Female. Mandible. Length "18 mm. 



Plate 9. 



Brachiella pastinaca, Van Beneden. 

 Fig. 8. Female. Mouth-parts. The length AB= 1-05 mm. 



Chondracanthus inflatus, sp. n. 



9. Female with J 1 attached to abdomen. Length of female 5 mm. 



10. Male. Ventral. Length "6 mm. 



11. Male. First maxilliped. Length '16 mm. 



12. Female. Mouth-parts, upper lip removed. 



13. Female. Mouth-parts, x 139 approx. 



14. Female. Abdomen, ventral, showing oviducts. Length 5 mm. 



15. Male. Thoracic limbs. Length -04 mm. 



(?) Brachiella parkeri, Thompson. 



16. Female, x 3-3. 



17. Female. Mouth-parts, x 40. 



