PLATE VI. 



Figs. 1-5. Conchoecia miilleri. 



1. Shell of female. X 28. 



2. Secondary brancli of right male antenna. X 72. 



3. End of hooked appendage of secondary branch of right 



male antenna. X 365. 



4. Secondary branch of left female antenna. X 72. 



5. Caudal lamina and male organ. X 72. 



Figs. 6-8. Conchoecia ritteri, female. 



6. Shell in side view. X 18. 



7. Shell markings near antero-ventral angle. X 46. 



8. Frontal organ. X 50. 



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